Introducing the Sierra-2EX!!!

[davef]

Sierra-2EX !!!

A little over 3-years ago on his annual visit with us, Claus Futtrup (CTO at SEAS Norway) introduced us to a new super high end diamond tweeter, called the White Diamond. I was extremely impressed with this tweeter and requested that SEAS build us up a matching cost-no-object woofer based on specific parameters to meet our performance goals.

About a year later after many samples, we had our new woofer and we started building and selling custom Sierra Diamond speakers. This is all detailed on our forum in this thread: http://forum.ascendacoustics.com/showthread.php?6237-Diamond-Tweeter


2047

The performance of this speaker was astonishing, but customers as well as those who auditioned our Sierra Diamond noted that as impressed as they were with the diamond tweeter, the woofer was equally impressive. I fully agreed. The midbass punch, bass extension, midrange detail, frequency response linearity, and overall dynamics was the best I had ever come across in a woofer this size, and even compared to many larger woofers.

Our own customers started to inquire about using this woofer in many of our designs, including our most successful speaker to date, our award winning Sierra-2. Problem was, being a true custom build - each of these woofers was being hand made for us by SEAS’s engineering team. These had never been mass produced and then there was the issue of cost. Our EX woofer is part of SEAS’s Excel line, using an optimized version of the venerable W16 motor system – customized to best match a new specially treated Curv woofer cone. Retail pricing on W16 woofers is typically in the range of $280 and up. While we pay less than that for volume purchases, our EX woofer is a purely custom build compared to the stock W16, thus retail pricing is even higher.

We were left with some daunting challenges. Will SEAS be able to reliably mass manufacture these woofers (they were not sure) and how would we be able to use this woofer in our Sierra-2 without a rather dramatic price increase?

As a company, we have always tried to give our customers and fans what they ask for – this is a major advantage of selling direct – we get to communicate directly with all of our customers. Upon witnessing the massive amount of interest in a Sierra-2 with this woofer, I became fully committed to make it happen. SEAS went to work on optimizing manufacturing processes and parts procurement – while we committed to purchasing a large enough supply to make it beneficial for both SEAS and Ascend, and get the per unit pricing down to as low as possible, a true win-win.

As we now enter our 20th year of business and in celebration of this milestone –


We introduce the new Sierra-2 EX!
(http://www.ascendacoustics.com/pages/products/speakers/SRM2EX/srm2ex.html)

2048
 

This woofer brings a few things to the table...

The Excel motor systems are known for having extremely low inductance; this woofer has less than half the inductance of the standard S2 woofer, which is already low. This combined with a significant reduction in moving mass, 22% lower to be exact, and a more powerful magnet system provides exceptionally deep bass and much improved transients and dynamics.

This woofer hits hard - there is more punch and bass extends lower than much larger woofers. Even with an 80Hz crossover, listeners will sense the greater impact due to the enhanced midbass.

The extremely low inductance combined with a new damping treatment being used on the Curv cone provides improved self-damping (which is already superb with the S2 woofer and why we chose the Curv cone in the first place) and greater high frequency extension and detail.

The huge copper phase plug improves off-axis dispersion, greatly reduces any beaming, works in conjunction with the pure copper upper and lower Faraday rings to reduce distortion, linearize magnetic flux and improve power handling and thermal compression by acting as a massive heat sink...

In simpler terms, mids are cleaner - smoother sounding with more weight to them (they sound warmer, fuller with more detail). Because of the upper end improvements, we can use a steeper high pass filter slope on the tweeter, easing the workload on the ribbon tweeter which in turn increases power handling, lowers distortion and provides for an even better overall blend between the woofer and tweeter.

The Sierra-2EX sounds like our Sierra-2, but is warmer/fuller, cleaner (especially at louder volume levels), more musical and with rather shocking dynamics. And, if run full range - the bass response seems to defy the laws of physics -- it is tower-like. In direct A/B comparisons with speakers using very high quality larger woofers, the EX woofer hit harder and deeper. I have never actually heard a bookshelf speaker with this kind of bass response before...

The Sierra-2EX improves upon every performance aspect of the Sierra-2 and the measurements are outstanding!

We are excited to release the Sierra-2EX, and in celebration of our 20th Anniversary – we are introducing the speaker at an incredible price.

For Sierra-2 owners who wish to upgrade, we also have an upgrade “kit” available.

And for more good news, Sierra-2EX is already in production and shipping!

The Sierra-2EX is a benchmark product and thanks to the feedback and inquiries from all of you – we fully committed ourselves to making it happen and we could not be any more pleased with the results.

Enjoy!

[diesel79]

Looks awesome.

Just sent email with questions. :)

[Mag_Neato]

Awesome news! Is there kit pricing listed somewhere?

[hornfan785]

Also curious about the upgrade kit pricing. Then I'll have to decide whether I should get the upgrade kit or the upcoming Luna Duo first....

[SunByrne]

Super cool. Bet these are monsters.

However, now I wish I had waited to upgrade my S1 NrTs to S2s, since I just did that like two months ago. I kinda thought the timeline on this would be a little longer. OTOH, since I don't know what this little beastie costs relative to the regular S1->S2 upgrade, I don't know if I would have done it. Definitely will be interested in seeing the price.

Dave, I'm still planning on visiting Ascend mid-August. I'll be able to listen to one of these, yes?

[cgramer]

Amazing news, Dave! Quick question, though: Does the slight difference in the size/location of the rear port on the standard vs. domestic cabinets make any audible difference to how these sound? Is there any sonic advantage to going with the slightly more expensive domestic cabinets, or is it more an aesthetic (and patriotic) upgrade? :)

Thanks!

[Mag_Neato]

Amazing news, Dave! Quick question, though: Does the slight difference in the size/location of the rear port on the standard vs. domestic cabinets make any audible difference to how these sound? Is there any sonic advantage to going with the slightly more expensive domestic cabinets, or is it more an aesthetic (and patriotic) upgrade? :)

Thanks!

My understanding is that the ports are the same diameter, but the domestic version has a larger flare in the opening and larger mounting flange. Not sure you'd hear any difference?

[curtis]

My understanding is that the ports are the same diameter, but the domestic version has a larger flare in the opening and larger mounting flange. Not sure you'd hear any difference?
This is correct.

I’m not even sure the flare is larger or if port tube just has a bigger flange.

[racrawford65]

Sweet!

I'm curious about the upgrade kit pricing, as well.

Dave, how is it as a center versus the upcoming Luna Duo?

[davef]

Amazing news, Dave! Quick question, though: Does the slight difference in the size/location of the rear port on the standard vs. domestic cabinets make any audible difference to how these sound? Is there any sonic advantage to going with the slightly more expensive domestic cabinets, or is it more an aesthetic (and patriotic) upgrade? :)

Thanks!

Good question. Port tuning is the same between standard and domestic cabinets and there is no detectable differences in performance. The flare is larger on the domestic cabinet port tube, but ID is exactly the same. I have never been able to hear any differences and measurements confirm this.

[davef]

Super Dave, I'm still planning on visiting Ascend mid-August. I'll be able to listen to one of these, yes?

Absolutely - S2EX are in our demo room.

[davef]

Ill get upgrade kit pricing posted later this evening...

[curtis]

Ill get upgrade kit pricing posted later this evening...
I bet some are going to stay up late, or get up early!

[Sam1000]

This is a nice woofer. very good chest thumping mid bass. Nice transients. I have tried it with couple of class D integrated amps(Devialet and Aavik) and it rocks. Highly recommended. I think this would mate really well with couple of rythmik F8s for a small form factor.

[RicardoJoa]

Do these still image crazy like the sierra2?
I really enjoy the imaging and separation of instruments of the sierra2 throws out.

[astr0b0y]

Finally, an upgrade path for S2’s! Someone please come up with a DIY cabinet so we can make use of the old woofers as a small sub enclosure.

[Mag_Neato]

Dave,
Thanks for posting the kit info on the EX product page!

[Fantom]

I've been following the diamond thread in anticipation! This came together quicker than expected. Great work Dave!!

Some questions:
What tools/skills are required to perform the upgrade from S2 to S2EX? Similar to the S1->S2 upgrade kit? Will there be an option to ship our S2 to Ascend to have you do the upgrade? And if so, how will self-upgrade vs factory upgrade affect warranty?

[Mag_Neato]

I've been following the diamond thread in anticipation! This came together quicker than expected. Great work Dave!!

Some questions:
What tools/skills are required to perform the upgrade from S2 to S2EX? Similar to the S1->S2 upgrade kit? Will there be an option to ship our S2 to Ascend to have you do the upgrade? And if so, how will self-upgrade vs factory upgrade affect warranty?

Should be the same as doing the S1 to Nrt upgrade, only you are swapping woofers vs tweeters as well as crossovers. You should have a regular Phillips (+) head screwdriver and correctly sized hex socket/open end wrench for the speaker terminal connections.

See here: http://forum.ascendacoustics.com/showthread.php?4526-NrT-Upgrade-instructions-with-video!

Just don't remove the tweeter, only the woofer!

[curtis]

Do these still image crazy like the sierra2?
I really enjoy the imaging and separation of instruments of the sierra2 throws out.
Yes!

[rsmt2000]

Dave,

How does the Sierra-2EX center compare to the upcoming LUNA Duo?

[trollbearpig_what]

Congrats on the go-live day for the new speakers Dave!! Price seems very reasonable to me so I just impulse bought the hell out of these...been watching the diamond thread for awhile. They'll be my first set of speakers and I'll be pairing with a refurbed NAD C 368 I ALSO just impulse bought ='D.

EXCITED!!

[davef]

Dave,

How does the Sierra-2EX center compare to the upcoming LUNA Duo?

I think it depends -- if someone is using Sierra-2EX as left/right and can fit the Sierra-2EX center (either vertically or horizontally) - I would then recommend the S2EX center. For nearly every other setup, I would still go with the forthcoming Duo.

[davef]

Do these still image crazy like the sierra2?
I really enjoy the imaging and separation of instruments of the sierra2 throws out.

I feel the S2 EX do a better job with instrument separation compared to Sierra-2 (thanks to the new woofer and crossover which eases the work load on the ribbon). I honestly haven't noticed any differences in imaging between the 2 speakers. Technically - the S2-EX should image better as the off-axis response is a bit more linear, but I couldn't audibly detect this. However, that is not to say that you won't hear the imaging improvements with the S2EX.

[davef]

Congrats on the go-live day for the new speakers Dave!! Price seems very reasonable to me so I just impulse bought the hell out of these...been watching the diamond thread for awhile. They'll be my first set of speakers and I'll be pairing with a refurbed NAD C 368 I ALSO just impulse bought ='D.

EXCITED!!

Thank you, and thanks so much for placing the order. For your first set of speakers, wow - you are jumping right into true high end audio - no better way to start this wonderful lifelong hobby and passion. I hope you absolutely love the speakers!

[davef]

This is a nice woofer. very good chest thumping mid bass. Nice transients. I have tried it with couple of class D integrated amps(Devialet and Aavik) and it rocks. Highly recommended. I think this would mate really well with couple of rythmik F8s for a small form factor.

Are you saying you have used the SEAS W16? If yes, I completely agree - the W16 is really special but keep in mind that while our EX woofer is based on the motor system of the W16, the cone, voice coil and former are very different, with overall considerably lower moving mass.

[davef]

I've been following the diamond thread in anticipation! This came together quicker than expected. Great work Dave!!

Some questions:
What tools/skills are required to perform the upgrade from S2 to S2EX? Similar to the S1->S2 upgrade kit? Will there be an option to ship our S2 to Ascend to have you do the upgrade? And if so, how will self-upgrade vs factory upgrade affect warranty?

S2 to S2EX is rather simple, I would say only skills required are some patience, somewhat dexterous hands, and experience with a screwdriver. Basically, you will need to first remove the woofer, then the tweeter, and then the crossover. Then install the new crossover, reinstall the tweeter - and then install the new woofer. No soldering would be required. It is very similar to this:

http://forum.ascendacoustics.com/showthread.php?5545-Sierra-2-Upgrade-instructions-with-video!

[davef]

Should be the same as doing the S1 to Nrt upgrade, only you are swapping woofers vs tweeters as well as crossovers. You should have a regular Phillips (+) head screwdriver and correctly sized hex socket/open end wrench for the speaker terminal connections.

See here: http://forum.ascendacoustics.com/showthread.php?4526-NrT-Upgrade-instructions-with-video!

Just don't remove the tweeter, only the woofer!

Minor correction: Tweeter must be removed in order to remove and install the new crossover.

[rifmon]

I'm already thoroughly enjoying my new Sierra 2's and the bass has not disappointed me at all in my room. But this upgrade and the benefits it brings are irresistible! Question...Will the upgrade effect the speaker's sensitivity?

Just found the product page with specs. By one dB

[goldark]

Are there any plans to use the EX woofer in a new version of the tower?

[Chucka]

Does the Sierra-2EX have much of an advantage over the Sierra-Luna Speaker when operating with a pair of subwoofers and a 80Hz crossover point?

[SunByrne]

Ugh, crushed by timing. I thought it would take Dave much longer to get everything worked out with SEAS, and a little less than two months ago spent $816 to upgrade my S1 NrTs to S2s. Waited like six years from the release of the S2s to do that.

If I had just waited those two short months, for a mere $162 more I could have gone to S2-EXs, which I totally would have done. Now it's going to cost me $656 to get to EXs, and that's just too rich.

Moral of the story: postpone purchases! :(

Someone with S2s please do the upgrade and tell me it's not a big deal.

[Bruce Watson]

Moral of the story: postpone purchases!

You can certainly do that.

My take is somewhat different: Buy the biggest bang for the buck you can find, only *when you need it*, and don't look back.

Second guessing after the fact is a waste of time at best, and corrosive at worst. Buy what you need, then move on. This is the only method I've found that actually works against GAS. Of course YMMV as everyone works differently.

[curtis]

You can certainly do that.

My take is somewhat different: Buy the biggest bang for the buck you can find, only *when you need it*, and don't look back.

Second guessing after the fact is a waste of time at best, and corrosive at worst. Buy what you need, then move on. This is the only method I've found that actually works against GAS. Of course YMMV as everyone works differently.
Agreed. There is always something better around the corner...Dave is always looking to improve and offer more "bang for the buck".

I have heard the new 2EX, and it sounds great. I have not directly compared to the standard Sierra-2, so ignorance is bliss.

It is on my list to compare/upgrade, but I have other priorities for my system, which also are in line with other priorities for my play money. I just bought a new pre/pro, and the hardware to put together a Roon ROCK(doing that today). Next up is an e-bike, then Atmos(which will require more/new amplification) and a new BBQ. Atmos and the BBQ are fighting for priority. :)

[mikesiskav]

Congrats Dave on the new product release! I think this is going to be a big hit. I wish I could upgrade now, but my budget just doesn't have to room for it right now. But one day it will happen!

[tkrae11]

I'm really excited about the Sierra-2EX as I was already saving up for S2s.

I'm interested to know more about the differences between domestic cabinets vs. standard cabinets. Specifically, I'm looking at the natural finish.

BTW, I recently got a pair of cbm-170 SEs and I'm very happy with them and will use them as surrounds later.

Thanks! -Tom K

[trollbearpig_what]

I'm going to be throwing the sierra -2ex's on a pair of Monolith by Monoprice stands. I was wondering how best to secure the speakers to the stands? I've heard blu tak frequently mentioned as being good, but am worried about them damaging the speakers if I ever have to remove the tak similar to this instance:

https://www.canuckaudiomart.com/details/649395136-kef-ls50-black-speakers-original-packaging/

Does anyone know if blu tak could damage these speakers or have any other recommendations on how to secure them?

[davef]

Does the Sierra-2EX have much of an advantage over the Sierra-Luna Speaker when operating with a pair of subwoofers and a 80Hz crossover point?

Quite a bit more midbass punch with the Sierra-2EX, combined with a bit higher efficiency and overall better dynamics. Sierra-2EX also sound a bit warmer overall compared to the Luna.

[Telemars]

I'm going to be throwing the sierra -2ex's on a pair of Monolith by Monoprice stands. I was wondering how best to secure the speakers to the stands? I've heard blu tak frequently mentioned as being good, but am worried about them damaging the speakers if I ever have to remove the tak similar to this instance:

https://www.canuckaudiomart.com/details/649395136-kef-ls50-black-speakers-original-packaging/

Does anyone know if blu tak could damage these speakers or have any other recommendations on how to secure them?

I’ve been using Blu-Tack for a couple years with my Sierra Luna’s with no issues at all (domestic cabinets, satin cherry finish). That includes the first time that I had used Blu-Tack and thought I needed an entire package for 2 speakers, needless to say it was very hard to get them off the stands again but the finish was completely undamaged.

A small square on each corner provides enough holding force to lift up the Sanus NF series stands I’ve been using with the speaker while not being too hard to remove or reposition. Not sure if it matters but I’ve always used the name brand.

[trollbearpig_what]

I’ve been using Blu-Tack for a couple years with my Sierra Luna’s with no issues at all (domestic cabinets, satin cherry finish). That includes the first time that I had used Blu-Tack and thought I needed an entire package for 2 speakers, needless to say it was very hard to get them off the stands again but the finish was completely undamaged.

A small square on each corner provides enough holding force to lift up the Sanus NF series stands I’ve been using with the speaker while not being too hard to remove or reposition. Not sure if it matters but I’ve always used the name brand.

Wow the whole package?! Ha that's insane..glad to hear it didn't damage your finish! I already purchased this one which seems similar to Blu Tak but claims to be more safe to remove for wood. I'm assuming the hold isn't as strong as Blu Tak but I'll give this one a try and see how it holds. If it's garbage I'm falling back on the Blu Tak. Thanks!

Quakehold! 88111 Museum Putty Neutral https://www.amazon.com/dp/B0002VA9NA/ref=cm_sw_r_cp_apa_i_NTXpDbKQQ5HP1

[davef]

Wow the whole package?! Ha that's insane..glad to hear it didn't damage your finish! I already purchased this one which seems similar to Blu Tak but claims to be more safe to remove for wood. I'm assuming the hold isn't as strong as Blu Tak but I'll give this one a try and see how it holds. If it's garbage I'm falling back on the Blu Tak. Thanks!

Quakehold! 88111 Museum Putty Neutral https://www.amazon.com/dp/B0002VA9NA/ref=cm_sw_r_cp_apa_i_NTXpDbKQQ5HP1

I have used this exact same stuff -- Quakehold. Works great.

[davef]

I'm really excited about the Sierra-2EX as I was already saving up for S2s.

I'm interested to know more about the differences between domestic cabinets vs. standard cabinets. Specifically, I'm looking at the natural finish.

BTW, I recently got a pair of cbm-170 SEs and I'm very happy with them and will use them as surrounds later.

Thanks! -Tom K


Hi Tom,

Differences are purely cosmetic and you can see the differences on the photo gallery page (http://www.ascendacoustics.com/pages/products/speakers/SRM2EX/srm2exgal.html). The domestic made cabinets do use a port tube with a larger flare, but I haven't found that it offers any benefit

[davef]

Congrats Dave on the new product release! I think this is going to be a big hit. I wish I could upgrade now, but my budget just doesn't have to room for it right now. But one day it will happen!

Thanks Mike!!

[davef]

Ugh, crushed by timing. I thought it would take Dave much longer to get everything worked out with SEAS, and a little less than two months ago spent $816 to upgrade my S1 NrTs to S2s. Waited like six years from the release of the S2s to do that.

If I had just waited those two short months, for a mere $162 more I could have gone to S2-EXs, which I totally would have done. Now it's going to cost me $656 to get to EXs, and that's just too rich.

Moral of the story: postpone purchases! :(

Someone with S2s please do the upgrade and tell me it's not a big deal.

Send me an email when you get a chance....

[DavidJW02]

Dave, how does the Sierra 2 EX compare to the Horizon? I know the Horizon has higher sensitivity and you had stated in a previous thread that the Horizon was more dynamic than the Sierra 2. However, the new Sierra 2 EX model is said to have better dynamics and an improved midrange, which are two areas that other listeners of the Horizon said were better than the original Sierra 2. How close does the EX come to the Horizon’s performance?

Thanks for working with SEAS to make the EX upgrade an option for existing Sierra owners.

[davef]

Dave, how does the Sierra 2 EX compare to the Horizon? I know the Horizon has higher sensitivity and you had stated in a previous thread that the Horizon was more dynamic than the Sierra 2. However, the new Sierra 2 EX model is said to have better dynamics and an improved midrange, which are two areas that other listeners of the Horizon said were better than the original Sierra 2. How close does the EX come to the Horizon’s performance?

Thanks for working with SEAS to make the EX upgrade an option for existing Sierra owners.

I would say the Sierra-2EX is about 50% closer to the performance of the Horizon with regards to dynamics. The Horizon still has an advantage with regard to dispersion, midrange clarity / detail and output capabilities.

[justthinking]

I will be ordering a pair of the upgrade kit soon, but what should we do with the old cross over and woofer from s2? Any suggestions?

[pj-]

After doing the Sierra 1 -> Sierra 1 SE upgrade and then the Sierra 1 SE -> Sierra 2 upgrade, I think this time I might just sell my Sierra 2's and buy new 2EX's. Crazy to think I originally bought them over 10 years ago.

The used market for S2's is pretty good so it would end up costing about the same as upgrading, plus, the S2 woofers were a tight fit and I'm not sure how easily I'd be able to pull them out.

[Fantom]

I thought about doing the same thing, especially with the intro pricing on the 2EX. But I figured it could be a fun project and a way to learn, since I had never done an upgrade before.

I bought the S1 12 years ago now (they had just launched). I skipped the NRT upgrade and heard that early cabinets didn't do well with the S2 upgrade. So I sent my S1 into Ascend... and they were unable to upgrade the cabinets. So I'm glad I didn't try myself! Ascend sold me new cabinets at cost and I got brand new S2 speakers with a fresh warranty about 4 years ago.

So I debated it too and honestly it would cost you roughly the same and as a bonus someone else gets a set of amazing speakers! I didn't get any takers from friends for the S2 so I went ahead and ordered the upgrade kits. I just completed my S2 -> S2EX upgrade for 3 speakers (LCR). Not sure yet what to do with my spare parts.

They're breaking in and then I'll need to redo calibration, but I'm already loving the additional clarity and punch/dynamics!

[davef]

I will be ordering a pair of the upgrade kit soon, but what should we do with the old cross over and woofer from s2? Any suggestions?

We would be happy to take them back and pay for the return shipping on them, but we are not offering any credit for the old parts.

[Mag_Neato]

I thought about doing the same thing, especially with the intro pricing on the 2EX. But I figured it could be a fun project and a way to learn, since I had never done an upgrade before.

I bought the S1 12 years ago now (they had just launched). I skipped the NRT upgrade and heard that early cabinets didn't do well with the S2 upgrade. So I sent my S1 into Ascend... and they were unable to upgrade the cabinets. So I'm glad I didn't try myself! Ascend sold me new cabinets at cost and I got brand new S2 speakers with a fresh warranty about 4 years ago.

So I debated it too and honestly it would cost you roughly the same and as a bonus someone else gets a set of amazing speakers! I didn't get any takers from friends for the S2 so I went ahead and ordered the upgrade kits. I just completed my S2 -> S2EX upgrade for 3 speakers (LCR). Not sure yet what to do with my spare parts.

They're breaking in and then I'll need to redo calibration, but I'm already loving the additional clarity and punch/dynamics!

I have an original pair of cabinets from the first Sierra-1’s as well, but I have been able to do both the NrT and Sierra-2 upgrades myself. The Sierra-2 woofer did give me a difficult time as it had a larger outer diameter and would not fit without enlarging the opening. The original cabinets also had different spacing for the threaded inserts that the crossover board mounts to so I had to use self tapping wood screws to mount the new boards.

I will do the EX kits at some point as well.

[Crk140]

I just upgraded/down graded from the s2 to a custom pair of nrt with ex woofers. The ribbons were too tame for my taste and personally preferred the nrt dome for rock. I personally can't imagine a woofer sounding any better. Special thanks to Dave for working with me and making my speakers custom. American made cabinets look great for any one considering and imo the ex woofer is well worth the additional cost. Thanks Dave and Dina. You guys are the best!!!!!

[Mag_Neato]

I just upgraded/down graded from the s2 to a custom pair of nrt with ex woofers. The ribbons were too tame for my taste and personally preferred the nrt dome for rock. I personally can't imagine a woofer sounding any better. Special thanks to Dave for working with me and making my speakers custom. American made cabinets look great for any one considering and imo the ex woofer is well worth the additional cost. Thanks Dave and Dina. You guys are the best!!!!!

That sounds awesome! With all the attention the RAAL tweeters get it's easy to forget how good those NrT tweeters are. I had them prior to converting them to Sierra-2's. They definitely do rock.

The main thing I got from going to the RAALs was how more "Real" things sounded. The NrT has huge energy as frequency rises rather than rolling off, so it could get a bit "Bitey" at times, really good for certain genres of music like rock, metal, etc. On the downside to that it could over emphasize sibilance......to me. The RAAL gave me all the detail without all that "SSSSSSSSSSibilance", presenting a natural sounding presentation.

I wouldn't mind having a 2nd set of Sierra's w/NrT's to listen to on occasion.

[racrawford65]

I wouldn't mind having a 2nd set of Sierra's w/NrT's to listen to on occasion.

I'm sure Dave & Dina would sell you a pair. JK ... :D

[Mag_Neato]

I'm sure Dave & Dina would sell you a pair. JK ... :D

That is a steep moss covered slope my friend.........

[racrawford65]

That is a steep moss covered slope my friend.........

Ed,
apologies if you were offended. none was meant.
Robert

[davef]

I just upgraded/down graded from the s2 to a custom pair of nrt with ex woofers. The ribbons were too tame for my taste and personally preferred the nrt dome for rock. I personally can't imagine a woofer sounding any better. Special thanks to Dave for working with me and making my speakers custom. American made cabinets look great for any one considering and imo the ex woofer is well worth the additional cost. Thanks Dave and Dina. You guys are the best!!!!!

You are very welcome and thanks for putting your confidence in us. We are thrilled you are enjoying them -- the EX woofer is really something special.

[Mag_Neato]

Ed,
apologies if you were offended. none was meant.
Robert

Robert, it’s all good, no worries! None taken.

[Agd]

Omg I haven't been following the forums and this news drops?? Big congrats to the entire ascend team! Really believe this is the greatest value in HiFi. I'm literally dying that I missed out by two months, I just bought Sierra 2s and could have gotten the EX for $50 more... People need to be jumping on this, that's a crazy deal. Wish I was a little more patient!

[Agd]

One thing I would love to hear is if the new woofers add weight to some of the transition frequencies that I think are limitations of the bookshelf comapared to tower.

One of my benchmark songs is Hotel California, and the vocal track being over weighted by the treble hihat and guitar work (which are compelling in their own right). Or the low-mid bass weight of sound of silence by disturbed. It's one of those songs that a good tower can add presence to that some bookshelves can struggle to fill. Would love to hear those that have made the upgrade report how these challenging bands have changed

[davef]

One thing I would love to hear is if the new woofers add weight to some of the transition frequencies that I think are limitations of the bookshelf comapared to tower.

Sierra-2EX (or any speaker for that matter) doesn't "add" weight to specific frequencies. This speaker is designed to reproduce frequencies as recorded. However, because the S2-EX has greater bass extension combined with a shallower bass roll off, there is more bass and mid-bass -- which adds "weight" to all frequencies.

[esnewtunemakers]

Just catching up on the EX's, wow! I consider myself a "junior audiophile", with little exposure to most of the industry, but since a kid, always trying to maximize sound quality (so happy when I bought a demo-model stereo VHS/TV tuner to connect to my used Luxman integrated amp!).

Just have to say, with all of the upgrades I have done in the last couple years, the Sierra-2 w/RAAL as my main L/R has been fantastic. I am seriously considering the upgrade to EX, while at the same time considering "relegating" the Sierra-2's to L/R surround duty and getting towers for main L/R...decisions, decisions...

But, thanks Dave and the Ascend team for the great products!

[davef]

Just catching up on the EX's, wow! I consider myself a "junior audiophile", with little exposure to most of the industry, but since a kid, always trying to maximize sound quality (so happy when I bought a demo-model stereo VHS/TV tuner to connect to my used Luxman integrated amp!).

Just have to say, with all of the upgrades I have done in the last couple years, the Sierra-2 w/RAAL as my main L/R has been fantastic. I am seriously considering the upgrade to EX, while at the same time considering "relegating" the Sierra-2's to L/R surround duty and getting towers for main L/R...decisions, decisions...

But, thanks Dave and the Ascend team for the great products!

Thank you! Very happy to hear that you continue to enjoy your Sierra-2's!! Send us an email or give us a call if you would like our recommendations.

[vicky]

very excited to learn if tower upgrade will also be coming in future 😀

[SONDEK]

Watching this thread with great interest!
I'm really hoping those members who have bought the SIERRA-2EX will post their listening impressions - including which speaker they have moved-up from and which amp they are using.
Appreciated.
:D :D :D

[RRT-NPS]

I used to be a Sierra Tower w/ RAAL owner, then got on the Salk bandwagon, mostly due to custom finishes not about sound quality because I was really pleased with the sound of the Towers. Now that I am in a smaller place, I am considering going back to Bookshelfs with BIG bass. Was considering the Salk Silk but now thinking about the Sierra 2EX. Dave, I would be curious to hear your opinions if you have compared the two and also as to why you, didn't opt for the 70-20 instead.

[Mag_Neato]

I used to be a Sierra Tower w/ RAAL owner, then got on the Salk bandwagon, mostly due to custom finishes not about sound quality because I was really pleased with the sound of the Towers. Now that I am in a smaller place, I am considering going back to Bookshelfs with BIG bass. Was considering the Salk Silk but now thinking about the Sierra 2EX. Dave, I would be curious to hear your opinions if you have compared the two and also as to why you, didn't opt for the 70-20 instead.

The 2EX was created as a result of the EX woofer that was developed specifically to complement the SEAS White Diamond tweeter. It got such high praise that Sierra-2 owners overwhelmingly asked Dave to try and make it work with the Sierra-2's RAAL tweeter as another upgrade path.

[davef]

I used to be a Sierra Tower w/ RAAL owner, then got on the Salk bandwagon, mostly due to custom finishes not about sound quality because I was really pleased with the sound of the Towers. Now that I am in a smaller place, I am considering going back to Bookshelfs with BIG bass. Was considering the Salk Silk but now thinking about the Sierra 2EX. Dave, I would be curious to hear your opinions if you have compared the two and also as to why you, didn't opt for the 70-20 instead.

I am sorry but I have no personal experience with the Salk Silk monitor. That said, no company has sold more 70-20xr ribbons than we have, and other than the designer himself - has more experience with the 70-20 than I do.

There are only 2 advantages of the 70-20 over the Sierra-2 tweeter, one being that it can play louder and the other being that it can be crossed lower. With regard to playing louder - there is no single 5" - 6" woofer that I know of that can be properly mated to the RAAL 70-20 that can match the max output levels of the 70-20. (massive overkill) The fact that it can be crossed lower can definitely be advantageous -- it makes matching it to a woofer easier. In the case of the Sierra-2EX, the EX woofer is incredibly linear up to about 5kHz, it is a terrific match with the Sierra-2 ribbon.

That said, the 70-20xr costs considerably more than the S2 tweeter, thus we would be looking at a very significant price increase to the Sierra-2EX (retail price would be at least $2800/pair). In addition, the S2 ribbon tweeter has wider horizontal and vertical dispersion, which is what you want in a bookshelf sized speaker.

So, given the advantage of a lower crossover point with the 70-20xr combined with significantly higher pricing, vs wider dispersion and a much friendlier price point with the S2 ribbon tweeter - this was one of the easier decisions to make.

[jimb]

...the 70-20xr costs considerably more than the S2 tweeter, thus we would be looking at a very significant price increase to the Sierra-2EX (retail price would be at least $2800/pair). ...

That's RAAL Tower money!

[RRT-NPS]

I am sorry but I have no personal experience with the Salk Silk monitor. That said, no company has sold more 70-20xr ribbons than we have, and other than the designer himself - has more experience with the 70-20 than I do.

There are only 2 advantages of the 70-20 over the Sierra-2 tweeter, one being that it can play louder and the other being that it can be crossed lower. With regard to playing louder - there is no single 5" - 6" woofer that I know of that can be properly mated to the RAAL 70-20 that can match the max output levels of the 70-20. (massive overkill) The fact that it can be crossed lower can definitely be advantageous -- it makes matching it to a woofer easier. In the case of the Sierra-2EX, the EX woofer is incredibly linear up to about 5kHz, it is a terrific match with the Sierra-2 ribbon.

That said, the 70-20xr costs considerably more than the S2 tweeter, thus we would be looking at a very significant price increase to the Sierra-2EX (retail price would be at least $2800/pair). In addition, the S2 ribbon tweeter has wider horizontal and vertical dispersion, which is what you want in a bookshelf sized speaker.

So, given the advantage of a lower crossover point with the 70-20xr combined with significantly higher pricing, vs wider dispersion and a much friendlier price point with the S2 ribbon tweeter - this was one of the easier decisions to make.

Thank you for a very detailed and honest answer. It makes perfect sense. If the bass is as big (or bigger) than the Sierra 1, I am sure I will be please. Now to figure out what to do with my Supercharged Songtowers.

[jmlight1]

Today should be the best hump day in quite a while. My pair of Sierra-2EX Espresso are on the UPS truck out for delivery to me as I type this. They will be replacing a pair of CBM-170SE's I purchased about a year ago that pull music duty in my family room. The 170's punch way above their weight class, and they will be moved downstairs to upgrade the man-cave. My son is in for a treat. I had actually been set on purchasing Sierra-2's last year, but life happened and so the 170's came instead. Perhaps good luck in the end as the 2EX's hold much promise.

The system they will become a part of is tube based with a Manley Labs Stingray II, with a Mag-Lev ML1 TT attached, as well as a Bluesound Node 2i to stream from my NAS and the web. The best of old-school meets digital....

[diesel79]

Today should be the best hump day in quite a while. My pair of Sierra-2EX Espresso are on the UPS truck out for delivery to me as I type this. They will be replacing a pair of CBM-170SE's I purchased about a year ago that pull music duty in my family room. The 170's punch way above their weight class, and they will be moved downstairs to upgrade the man-cave. My son is in for a treat. I had actually been set on purchasing Sierra-2's last year, but life happened and so the 170's came instead. Perhaps good luck in the end as the 2EX's hold much promise.

The system they will become a part of is tube based with a Manley Labs Stingray II, with a Mag-Lev ML1 TT attached, as well as a Bluesound Node 2i to stream from my NAS and the web. The best of old-school meets digital....

Awesome! Can’t wait to hear your impressions. Mine are due to me on Monday, but probably won’t be able get dialed in right away.

[racrawford65]

nice integrated amp - the Manley Stingray. I have their Chinook phono pre-amp. Great piece of equipment. Awesome service as well from EveAnna and team... just like Ascend.

[jmlight1]

nice integrated amp - the Manley Stingray. I have their Chinook phono pre-amp. Great piece of equipment. Awesome service as well from EveAnna and team... just like Ascend.

Thanks, and I agree, the Stingray is a great amp. My system at home stands in contrast to the all digital Devialet system at the office... and I enjoy the sound of both immensely.

Speaking of sound... I'm not able to get into any detail yet as I've not had the chance to really push the 2EX's. I've played a few good jazz albums, and some high-rez digital files from the NAS, Alan Parsons I Robot, Led Zep x, and some others. I'm more struck by the RAAL tweeter than the new woofer, but like I said, I've not been able to really sit back alone and turn it up. First impressions vs the 170's are of course very positive! Huge upgrade!

I'm really looking forward to getting some hours on these and seeing how they settle in.

https://live.staticflickr.com/65535/48958419016_8cd4c1dd8f_b.jpg (https://flic.kr/p/2hAhGhG)Hifi (https://flic.kr/p/2hAhGhG) by Eric Mack (https://www.flickr.com/photos/184744451@N05/), on Flickr

Pic of the system before swapping in the Sierras

https://live.staticflickr.com/65535/48957869633_46b475193f_b.jpg (https://flic.kr/p/2hAeSYz)Hifi2 (https://flic.kr/p/2hAeSYz) by Eric Mack (https://www.flickr.com/photos/184744451@N05/), on Flickr

[davef]

https://live.staticflickr.com/65535/48958419016_8cd4c1dd8f_b.jpg (https://flic.kr/p/2hAhGhG)Hifi (https://flic.kr/p/2hAhGhG) by Eric Mack (https://www.flickr.com/photos/184744451@N05/), on Flickr

https://live.staticflickr.com/65535/48957869633_46b475193f_b.jpg (https://flic.kr/p/2hAeSYz)Hifi2 (https://flic.kr/p/2hAeSYz) by Eric Mack (https://www.flickr.com/photos/184744451@N05/), on Flickr


Wow!

[ed_bob]

Wow I can’t believe I hadn’t heard this news until the Black Friday email! Sadly, I’ll probably have to wait several more months before I can spend for the upgrade kit for my Sierra 2s, but you better believe I’m doing it as soon as I can get my wife on board!

I’ve had my Sierra 2s for over a year and a half and am still amazed by them every day. I haven’t had the speaker upgrade itch since I bought these (well until the EX was announced anyway)!

I don’t use a sub, so seeing the bass extension go from 46Hz to 38Hz anechoic while only sacrificing 1dB in sensitivity is very exciting and downright impressive!

Many thanks to Dave and Dina for continuing to innovate and for offering upgrade kits at relatively affordable prices to your customers!

Can’t wait to hear these. Cheers!

[petmotel]

Haven't been on this forum for a while, last thing I was closely following was the Luna development. I just very recently caught up on the S2 Diamond development, which of course led to the S2-EX (or sex for short). The improvement of this speaker over the Sierra-2 is almost inconceivable to me, the performance of the regular 2 being stunning in it's own right.

I have a pair of nice gloss espresso cabinets with Sierra-1 NRT drivers, so wanting to experience what is in my mind one of the best two way bookshelf speakers available at any price, I ordered upgrade kits for this stereo pair to Sierra-2EX components. I'm still almost unable to grasp the idea that the Sierra-2 is able to be substantially improved upon, but that is the reality of Dave's passion for creating top tier performance in an affordable package. What a truly remarkable individual!

I think Ascend owners are a bit of a jaded lot, able to sample performance levels once relegated to the privileged few that could afford astronomically priced high end equipment. Even in that exclusive arena, there is no guarantee that the ridiculous costs of that gear results in sonic excellence, nowhere is the mantra "Buyer Beware" more appropriate.

Jay

[kmmccorm]

Does anyone have any experience or thoughts on pairing the Sierra 2-EX with the CMT-340 center?

[davef]

Does anyone have any experience or thoughts on pairing the Sierra 2-EX with the CMT-340 center?

While this isn't ideal, we have had a few customers do this and they have reported good results.

[kmmccorm]

Thanks! I actually spoke with one of your helpful associates on Friday and she provided the same guidance. I ordered the 2-EXs and the Luna Duo center on Saturday 🙂

[kmmccorm]

I got my S2-EX and Duo center today, amazing first impressions and looking forward to breaking them in a bit. Based on suggestions from other threads I also got the Sanua SF-26 stands. Since the speakers don’t have screw holes on the bottom, what is the best way to sit them on the stands? Just use the included pads? I imagine the SF-26 spike screws aren’t a great option?

[racrawford65]

I wouldn't screw into the speaker cabinets. Blu-Tac works well. A bit on the stand top on each corner and the center, then set the speaker on it & press.

[Veda]

Damn I took a leave for 5 years then saw this release, sold my Sierra 2 RAALs 5 mins later, now trying to decide which cabinet finish to get.

[2ChannelListening]

Greetings Ascend Acoustics fans. I've been working my way through these wonderful speakers; starting with S1's, then S2's and now the 2EX. I have personally owned more than 35 pairs of speakers and I have to say the build quality and sound quality at this price point is nothing short of amazing. I'm an amateur reviewer, cutting my teeth one week at a time.

If you are interested in my take with how special I think the 2EX are, please see my breakdown video. Thank you all.

https://youtu.be/NquRKdH5RWk

[theophile]

Greetings Ascend Acoustics fans. I've been working my way through these wonderful speakers; starting with S1's, then S2's and now the 2EX. I have personally owned more than 35 pairs of speakers and I have to say the build quality and sound quality at this price point is nothing short of amazing. I'm an amateur reviewer, cutting my teeth one week at a time.

If you are interested in my take with how special I think the 2EX are, please see my breakdown video. Thank you all.

https://youtu.be/NquRKdH5RWk

2CL,

Hello and Welcome to the AA Forum! :D

I viewed your Sierra 2EX review as soon as it came out...wonderful report and as being a new 2EX owner myself (past 6 weeks), I have to agree with your comments of the superior midrange, bass punch and extension the "EX" brings to the Sierra 2! They have amazing prowess in energizing my listening room with very natural, tight and extremely well defined upper/lower midrange and upper/lower bass. Tonality and resolution are excellent in their response range and Dave has fitted these EX perfectly to the RAAL custom trademark tweeter...VERY SWEET!!

I listen to orchestral, large choral and pipe organ (+ jazz, blues, small string-wind ensembles, solo vocals), thus have the 2EX's paired with a very musical sub. High pass and low pass are set to 50hz and top to bottom (30Khz down to 18hz), and in my dedicated 2-channel music room, I am missing...NOTHING!!!

I also need to add that with the 2EX (vs Sierra2 and Sierra1 NrT), the soundstage is better defined, has much more air around the performers and can easily extend Well Beyond all room boundaries in my intimate near field 90sf sound room!! All genre of acoustical and amplified music comes closest to "live performances" as I ever heard. The 2EX's offer a critical and accurate window not only into the music, but also the recorded venue, the medium (mics, mixing, etc.) and the energy and soul of the performers...Thanks Dave!!! :cool:

Ted

[2ChannelListening]

Much appreciated Ted, thank you for the warm welcome!

I believe you when you say you are missing nothing. Nice CD player by the way. I will be lurking from time to time :D

- Jason

[theophile]

Much appreciated Ted, thank you for the warm welcome!

I believe you when you say you are missing nothing. Nice CD player by the way. I will be lurking from time to time :D

- Jason

Thanks Jason. After 33 years, it started skipping last week. I took off the cover and lightly cleaned the laser housing lens with Ronson lighter fluid on a q-tip! Have about 24 hrs of listening since without a single tracking error...seems to sound even better than when new!!! ;)

Ted

[Mag_Neato]

Greetings Ascend Acoustics fans. I've been working my way through these wonderful speakers; starting with S1's, then S2's and now the 2EX. I have personally owned more than 35 pairs of speakers and I have to say the build quality and sound quality at this price point is nothing short of amazing. I'm an amateur reviewer, cutting my teeth one week at a time.

If you are interested in my take with how special I think the 2EX are, please see my breakdown video. Thank you all.

https://youtu.be/NquRKdH5RWk

Jason, I enjoyed your review!

A couple minor corrections:
1. The SEAS Excel woofer was originally created to pair with SEAS' Diamond tweeters that Dave
created a Sierra Diamond speaker that sold for $7K/pair. All of us customers asked if he could pair
that woofer with the RAAL and create an uber Sierra-2.

2. The woofer is a 6" vs 5 1/4"

Other than that, great job!

[2ChannelListening]

Thank you for that correction, it was a little confusing when taking the measurements. I will go back and add a line in the comments. Thanks for the clarification! :)

[2ChannelListening]

Thanks Jason. After 33 years, it started skipping last week. I took off the cover and lightly cleaned the laser housing lens with Ronson lighter fluid on a q-tip! Have about 24 hrs of listening since without a single tracking error...seems to sound even better than when new!!! ;)

Ted

That is really impressive.

[davef]

Thank you for that correction, it was a little confusing when taking the measurements. I will go back and add a line in the comments. Thanks for the clarification! :)

Lots of information about the EX woofer in this thread:

http://forum.ascendacoustics.com/showthread.php?6237-Diamond-Tweeter

It's a huge thread but quite informative.

[davef]

We are most pleased to publish Sierra-2EX Klippel NFS Measurements.

The Klippel NFS is a fully automated robotic measurement device that uses advanced technologies to achieve true full-range exceptionally high-resolution directivity measurements that are considerably more accurate than anything else currently available. These measurements allow for a deep peek into the performance of any speaker.

For more information about this device, please see here:

https://www.facebook.com/warkwyn/videos/1252153234854627/

http://www.klippel.de/products/rd-system/modules/nfs-near-field-scanner.html

The following measurements took ~ 6 hours and used 4800 individual measurements (1600 different microphone positions) to achieve ~ 99.5% accuracy. There are 20 data points per octave to conform to CEA-2034 standards. The measurement at each of the 1600 different microphone positions was taken 3 times and averaged together to improve the signal to noise ratio further enhancing accuracy.

The key points that these measurements reveal is the remarkably wide and linear horizonal dispersion as seen in the contour plot (+/- 80 degs!), as well as the excellent estimated in-room response. The directivity index in the CEA-2034 plot shows extremely tight integration between our EX woofer and the RAAL ribbon. These measurements also match up well with our original published measurements but are more accurate as there is no time gating or smoothing.

Enjoy!

2053

2052

2051

2050

2049

[goldark]

We are most pleased to publish Sierra-2EX Klippel NFS Measurements.

The Klippel NFS is a fully automated robotic measurement device that uses advanced technologies to achieve true full-range exceptionally high-resolution directivity measurements that are considerably more accurate than anything else currently available. These measurements allow for a deep peek into the performance of any speaker.

For more information about this device, please see here:

https://www.facebook.com/warkwyn/videos/1252153234854627/

http://www.klippel.de/products/rd-system/modules/nfs-near-field-scanner.html

The following measurements took ~ 6 hours and used 4800 individual measurements (1600 different microphone positions) to achieve ~ 99.5% accuracy. There are 20 data points per octave to conform to CEA-2034 standards. The measurement at each of the 1600 different microphone positions was taken 3 times and averaged together to improve the signal to noise ratio further enhancing accuracy.

The key points that these measurements reveal is the remarkably wide and linear horizonal dispersion as seen in the contour plot (+/- 80 degs!), as well as the excellent estimated in-room response. The directivity index in the CEA-2034 plot shows extremely tight integration between our EX woofer and the RAAL ribbon. These measurements also match up well with our original published measurements but are more accurate as there is no time gating or smoothing.

Enjoy!

2046

2044

2043

2042

2041


Looks great, Dave! Any chance you'll publish Klippel scans for the rest of Ascend's speakers?

[Shazb0t]

We are most pleased to publish Sierra-2EX Klippel NFS Measurements.

The Klippel NFS is a fully automated robotic measurement device that uses advanced technologies to achieve true full-range exceptionally high-resolution directivity measurements that are considerably more accurate than anything else currently available. These measurements allow for a deep peek into the performance of any speaker.

For more information about this device, please see here:

https://www.facebook.com/warkwyn/videos/1252153234854627/

http://www.klippel.de/products/rd-system/modules/nfs-near-field-scanner.html

The following measurements took ~ 6 hours and used 4800 individual measurements (1600 different microphone positions) to achieve ~ 99.5% accuracy. There are 20 data points per octave to conform to CEA-2034 standards. The measurement at each of the 1600 different microphone positions was taken 3 times and averaged together to improve the signal to noise ratio further enhancing accuracy.

The key points that these measurements reveal is the remarkably wide and linear horizonal dispersion as seen in the contour plot (+/- 80 degs!), as well as the excellent estimated in-room response. The directivity index in the CEA-2034 plot shows extremely tight integration between our EX woofer and the RAAL ribbon. These measurements also match up well with our original published measurements but are more accurate as there is no time gating or smoothing.

Enjoy!

2046

2044

2043

2042

2041

Awesome! Thanks for taking the time to get these properly measured and for following the current loudspeaker research. Many manufacturers don't do either.

Any chance we'll see something similar for the Sierra RAAL Towers?

[RicardoJoa]

Awesome! Thanks for taking the time to get these properly measured and for following the current loudspeaker research. Many manufacturers don't do either.

Any chance we'll see something similar for the Sierra RAAL Towers?

ASR did a horizon measurement, it should be pretty close to the sierra tower.

[Mag_Neato]

ASR did a horizon measurement, it should be pretty close to the sierra tower.

I'd think Dave would prefer to take his own measurements rather than rely on a 3rd party for those.

Theoretically if the Klippel setup is an automated, hit "GO" and collect the results affair than the measurements should be similar. Although Dave has had less play time with it, I'd give him the edge when it comes to getting this right given his decades of professional experience.

[jimb]

we are most pleased to publish sierra-2ex klippel nfs measurements.

The klippel nfs is a fully automated robotic measurement device that uses advanced technologies to achieve true full-range exceptionally high-resolution directivity measurements that are considerably more accurate than anything else currently available. These measurements allow for a deep peek into the performance of any speaker.

...

The key points that these measurements reveal is the remarkably wide and linear horizonal dispersion as seen in the contour plot (+/- 80 degs!), as well as the excellent estimated in-room response. The directivity index in the cea-2034 plot shows extremely tight integration between our ex woofer and the raal ribbon. These measurements also match up well with our original published measurements but are more accurate as there is no time gating or smoothing.

...



nice!

[PATB]

I just placed my order for a Sierra 2EX. The lady who answered the phone was very helpful and informative. I learned about the Sierra 2EX from the Hoffman forum.

The Sierra 2EX will replace my 5-year old Epos K1s, which I bought used from my local dealer as a "place holder" until I can afford a decent speaker. Well, I couldn't really find much fault about the Epos, even after auditioning a Proac Tablette and Harbeth P3ESR before the pandemic. Having read great reviews and after much "research", I think the Sierra 2EX is the ticket for me.

I will be using the Sierra 2EX with a Rega Elex-R and a REL T5i. My only concern is that I have very limited space; the speakers will have be placed about 10" from a rear wall. I will have to make compromises but that is the price of living in the Bay Area. I am looking forward to participating in this community.

[theophile]

I just placed my order for a Sierra 2EX. The lady who answered the phone was very helpful and informative. I learned about the Sierra 2EX from the Hoffman forum.

The Sierra 2EX will replace my 5-year old Epos K1s, which I bought used from my local dealer as a "place holder" until I can afford a decent speaker. Well, I couldn't really find much fault about the Epos, even after auditioning a Proac Tablette and Harbeth P3ESR before the pandemic. Having read great reviews and after much "research", I think the Sierra 2EX is the ticket for me.

I will be using the Sierra 2EX with a Rega Elex-R and a REL T5i. My only concern is that I have very limited space; the speakers will have be placed about 10" from a rear wall. I will have to make compromises but that is the price of living in the Bay Area. I am looking forward to participating in this community.

Hello PATB and Welcome to the Ascend Acoustic Forum! :D

Congrats on your Sierra-2EX purchase...Great Choice!! :cool: You've probably found several 2EX reviews HERE (http://forum.ascendacoustics.com/forumdisplay.php?29-Verified-User-Reviews), but also there is a real good U-Tube video HERE (https://www.youtube.com/watch?v=NquRKdH5RWk)!! Possibly, you've been following the 2EX threads HERE (https://forums.stevehoffman.tv/search/84500877/?q=Ascend+Acoustics+Sierra-2EX&o=relevance&c[node]=5)?!?

Not a lot to add to the above, but believe you will find the Sierra-2EX Very Accurate Monitors...Enjoy! :)

Ted

[Beave]

Very nice measurements! And they match what others have described when comparing them to original Sierra 2 version - more midbass and a bit smoother in the upper mids.

Side note: Somebody needs to post this in the Loudspeakers section of this forum! I saw reference to these measurements on another forum but couldn't find them here for the longest time! (I hardly ever look at the "Announcements" section.) ;)

[Jthorpe]

Hey all!

Quick question - looking to upgrade my HT and music experience :)

Currently have a 2.1 setup with the 170s and rhythmik LV12F. Currently paired with a denon x1400h in a 20x20 room.

I’d be looking to add the Sierra 2ex for my LCR. Would my receiver be enough to power this new setup? Also assuming the 170s would be fine for my surrounds to complete my 5.1?

Thanks!

I’d be adding

[billy p]

Hey all!

Quick question - looking to upgrade my HT and music experience :)

Currently have a 2.1 setup with the 170s and rhythmik LV12F. Currently paired with a denon x1400h in a 20x20 room.

I’d be looking to add the Sierra 2ex for my LCR. Would my receiver be enough to power this new setup? Also assuming the 170s would be fine for my surrounds to complete my 5.1?

Thanks!

I’d be adding

It would really depend on your listening levels because the 170s are about ~5dbs more efficient. With your current sub I think you'll be fine but without it the S2...dig deeper and rated about 86db for in room.... otherwise for moderate levels you'll be fine and the 170s would nicely complement the S2 for surround duties.

[Jthorpe]

It would really depend on your listening levels because the 170s are about ~5dbs more efficient. With your current sub I think you'll be fine but without it the S2...dig deeper and rated about 86db for in room.... otherwise for moderate levels you'll be fine and the 170s would nicely complement the S2 for surround duties.

Awesome thanks - I definitely don’t go too loud.

Would your response change if I went with the Sierra horizon for the center? Sorry I’m really bad at understanding speaker sensitivities and power requirements

[billy p]

The towers or horizon are certainly more efficient speakers...I personally think you'd be fine with that Denon unit. I'm currently using a low profile Marantz NR 1700 @ ~50watts per channel because of space limitations in my credenza...I've not had any issue arise coming from my larger Anthem receiver...with a sub, honestly you shouldn't have any issues...more watts on tap is always nice because of variations or dynamic peaks associated with movies... normal enthusiast would be fine with your Denon's current 80w rating.

Good luck...:)

[davef]

Hey all!

Quick question - looking to upgrade my HT and music experience :)

Currently have a 2.1 setup with the 170s and rhythmik LV12F. Currently paired with a denon x1400h in a 20x20 room.

I’d be looking to add the Sierra 2ex for my LCR. Would my receiver be enough to power this new setup? Also assuming the 170s would be fine for my surrounds to complete my 5.1?

Thanks!

I’d be adding

Absolutely OK with the Denon 1400 and Sierra-2EX for LCR in your room. No issues at all and a huge step up in performance from the 170's :)

170's do perform well as surrounds with Sierra-2EX as fronts...

Take care!

[lovesegfault]

Hey everyone,

Are Klippel NFS measurements of these available anywhere? I'm curious what they look like.

Cheers!

[davef]

Hey everyone,

Are Klippel NFS measurements of these available anywhere? I'm curious what they look like.

Cheers!

Welcome!

Yes, Sierra-2EX NFS measurements can be found here:

http://forum.ascendacoustics.com/showthread.php?6914-Introducing-the-Sierra-2EX!!!&p=65736#post65736

Please let me know if you have any questions and enjoy your time here.

[Alleric]

Been a while. Apologies. Hope folks are well.

My brain is telling me that I remember the crossover in the Sierra 1 center is slightly different than the normal Sierra 1? If that's the case, does that also hold true of the Sierra 2 EX center vs normal? Is there a listing for a "center" upgrade kit or... ?

Thanks in advance. :)

[natetg57]

Been a while. Apologies. Hope folks are well.

My brain is telling me that I remember the crossover in the Sierra 1 center is slightly different than the normal Sierra 1? If that's the case, does that also hold true of the Sierra 2 EX center vs normal? Is there a listing for a "center" upgrade kit or... ?

Thanks in advance. :)

Maybe you're thinking of the 340. The 340 center is different than a regular 340 but the Sierra-1 center is exactly the same as a regular Sierra-1.

[Alleric]

Maybe you're thinking of the 340. The 340 center is different than a regular 340 but the Sierra-1 center is exactly the same as a regular Sierra-1.

Thank you for the reply, but no. I've never shopped the 340's. This was a discussion about the Sierra 1's. I do not recall if it was with Mr. Fabrikant or someone else at the time (2011-2012). Tweeter mounted on the lateral and a slight crossover change. Regardless, if someone can speak to if there is a different upgrade kit for a center to be taken from Sierra 1 to 2 EX, I would appreciate it.

[Mag_Neato]

There is nothing in the crossover that is different between the "standard" Sierra models vs one used as a center. The only thing you will need to do with the EX is rotate the RAAL tweeter so it is vertical when the speaker lies on its side. The other difference is that when you order one as a center you get a full length grill that covers the entire baffle.

[natetg57]

Thank you for the reply, but no. I've never shopped the 340's. This was a discussion about the Sierra 1's. I do not recall if it was with Mr. Fabrikant or someone else at the time (2011-2012). Tweeter mounted on the lateral and a slight crossover change. Regardless, if someone can speak to if there is a different upgrade kit for a center to be taken from Sierra 1 to 2 EX, I would appreciate it.

Mag_Neato's reply was better. I meant that there is no difference in the crossover. The upgrade kit to go from Sierra-1 to 2EX is exactly the same for left, right and center speakers.

[davef]

Been a while. Apologies. Hope folks are well.

My brain is telling me that I remember the crossover in the Sierra 1 center is slightly different than the normal Sierra 1? If that's the case, does that also hold true of the Sierra 2 EX center vs normal? Is there a listing for a "center" upgrade kit or... ?

Thanks in advance. :)

Hi Alleric,

The other posters are correct, there is absolutely no difference between the Sierra-1 crossover used in the left/right models and the center version. The same for Sierra-2EX. For both Sierra-1 and Sierra-2EX centers, we rotate the tweeter 90 degrees for proper horizontal dispersion and we also include a full length grille instead of the standard 3/4 length.

thanks!

[Mag_Neato]

Hi Alleric,

The other posters are correct, there is absolutely no difference between the Sierra-1 crossover used in the left/right models and the center version. The same for Sierra-2EX. For both Sierra-1 and Sierra-2EX centers, we rotate the tweeter 90 degrees for proper horizontal dispersion and we also include a full length grille instead of the standard 3/4 length.

thanks!

Ah, forgot about the elliptical wave guide on the Sierra-1 tweeter necessitating the need to rotate it.

Dave, what are your thoughts on toe-in for the EX? I know the RAAL has extremely wide horizontal dispersion, so would the woofer have more influence on that?

[theophile]

Ah, forgot about the elliptical wave guide on the Sierra-1 tweeter necessitating the need to rotate it.

Dave, what are your thoughts on toe-in for the EX? I know the RAAL has extremely wide horizontal dispersion, so would the woofer have more influence on that?

Great question, Ed!

Hope you don't mind me chiming in with my Siera-2/Sierra-2EX experience...

IMHO, I find the 2EX crossover/integration/blend between the RAAL and EX mid/bass Much More coherent and seamless, allowing me to easily "toe-out" the 2EX 5 degrees! The toe-out creates a huge 3D soundstage presentation that is very large and very deep...center image and musician imaging remains rock solid. It is accurate and precise in providing a realistic walk-into Live Venue Aura of Sound, just as I have experienced when attending live un-amplified acoustical performances! The S2 was very good, but the 2EX takes the stereo holographic reproduction to a whole other level of LIVE!! :o

Ted

[Mag_Neato]

Great question, Ed!

Hope you don't mind me chiming in with my Siera-2/Sierra-2EX experience...

IMHO, I find the 2EX crossover/integration/blend between the RAAL and EX mid/bass Much More coherent and seamless, allowing me to easily "toe-out" the 2EX 5 degrees! The toe-out creates a huge 3D soundstage presentation that is very large and very deep...center image and musician imaging remains rock solid. It is accurate and precise in providing a realistic walk-into Live Venue Aura of Sound, just as I have experienced when attending live un-amplified acoustical performances! The S2 was very good, but the 2EX takes the stereo holographic reproduction to a whole other level of LIVE!! :o

Ted

Thanks for your input, Ted!

I have been enjoying my EX's since I upgraded from the 2's right after Dave & Co. released the upgrade kits. A friend brought his regular 2's over to a/b them and, for sure, the EX's are better in many ways.

I was hoping Dave could shed some technical light on the subject of toe-in/toe-out relative to the dispersion characteristics of the EX drivers. Ted, I may try your "reverse-toe-in" method for S&G's!

[theophile]

Thanks for your input, Ted! I have been enjoying my EX's since I upgraded from the 2's right after Dave & Co. released the upgrade kits. A friend brought his regular 2's over to a/b them and, for sure, the EX's are better in many ways.

I was hoping Dave could shed some technical light on the subject of toe-in/toe-out relative to the dispersion characteristics of the EX drivers. Ted, I may try your "reverse-toe-in" method for S&G's!

Go for it, Ed! Easy for me, as the 2EX stands have pivoting 3/4" wood plates that can swivel 360 degrees! ;)

The "reverse-toe-in" works well in my setup, but I do have them in a small 90sf semi-near-field listening room with only 5ft of separation and a 7ft listening position distance, so would not be surprised if I might be the only audio-nut that it works well for!?! :rolleyes:

Ted

https://i.postimg.cc/5yw97ppV/AA-Sierra-2-EX-Monitors-Axiom-Sub-Emotiva-Pre-Pro-Philips-CD-MP-Conditioner-Morrow-Audio-Cables.jpg (https://postimg.cc/kRgdDQk1)

[Mag_Neato]

Go for it, Ed! Easy for me, as the 2EX stands have pivoting 3/4" wood plates that can swivel 360 degrees! ;)

The "reverse-toe-in" works well in my setup, but I do have them in a small 90sf semi-near-field listening room with only 5ft of separation and a 7ft listening position distance, so would not be surprised if I might be the only audio-nut that it works well for!?! :rolleyes:

Ted

https://i.postimg.cc/5yw97ppV/AA-Sierra-2-EX-Monitors-Axiom-Sub-Emotiva-Pre-Pro-Philips-CD-MP-Conditioner-Morrow-Audio-Cables.jpg (https://postimg.cc/kRgdDQk1)

Hmm, with only 5' of separation between speakers and a 7' listening distance I can understand why that could work for you. I don't have the exact distances handy but my speakers are roughly 7' apart and I MAY be at 7' listening distance, maybe even 6'. I also have DIY acoustic panels at the 1st reflection points on the side walls, as well as corner bass traps I built. The speakers are well into the room off the front wall, roughly 3' out, and about 2' in from the side walls. They are toed-in to where the inner sides of the speakers are visible, with the driver axes intersecting about 2' behind my head.

[davef]

Regarding the discussion on toe-in / toe-out for Sierra-2EX. From a purely technical standpoint, a few degrees inward or outward would not be audible.

You can see this in the Sierra-2EX NFS contour plot.

http://forum.ascendacoustics.com/attachment.php?attachmentid=2043&d=1622523203

There is basically no measurable change from on-axis (0 degrees) to +/-40 degs. The Sierra-2EX has exceptionally wide horizontal dispersion. There *might* be some very minor audible changes starting at +/- 40 degs, but we are talking about a few decibels at most.

From a subjective view taking into account the measurements, toeing the speakers outward could subject your side walls to receiving slightly more energy from the upper band of the woofer (where the contour plot shows some narrowing at ~3kHz) 3kHz = ~4.5" so it is rather directional, thus providing more reflected sound in your room which adds to spaciousness.

[theophile]

Regarding the discussion on toe-in / toe-out for Sierra-2EX. From a purely technical standpoint, a few degrees inward or outward would not be audible.

You can see this in the Sierra-2EX NFS contour plot.

http://forum.ascendacoustics.com/attachment.php?attachmentid=2043&d=1622523203

There is basically no measurable change from on-axis (0 degrees) to +/-40 degs. The Sierra-2EX has exceptionally wide horizontal dispersion. There *might* be some very minor audible changes starting at +/- 40 degs, but we are talking about a few decibels at most.

From a subjective view taking into account the measurements, toeing the speakers outward could subject your side walls to receiving slightly more energy from the upper band of the woofer (where the contour plot shows some narrowing at ~3kHz) 3kHz = ~4.5" so it is rather directional, thus providing more reflected sound in your room which adds to spaciousness.

Thanks for the clarification, Dave!

Explains well why the 2EX in my music room setup (baffle fronts 2ft away from room boundaries) works to expand the overall soundstage presentation! :o

Ted

[Alleric]

Hi Alleric,

The other posters are correct, there is absolutely no difference between the Sierra-1 crossover used in the left/right models and the center version. The same for Sierra-2EX. For both Sierra-1 and Sierra-2EX centers, we rotate the tweeter 90 degrees for proper horizontal dispersion and we also include a full length grille instead of the standard 3/4 length.

thanks!

Thanks to everyone for their responses.

Mr. Fabrikant,

Regarding the S2EX, with the quality of the woofer and tweet being bumped severely, were any upgrades also made to the individual components of the crossover? Or is it similar in quality to the components of the S1 crossovers? The S1 page has a picture of the crossovers, so a bit can be gleaned, but there's no parallel image for the S2EX's. Thank you in advance.

[davef]

Thanks to everyone for their responses.

Mr. Fabrikant,

Regarding the S2EX, with the quality of the woofer and tweet being bumped severely, were any upgrades also made to the individual components of the crossover? Or is it similar in quality to the components of the S1 crossovers? The S1 page has a picture of the crossovers, so a bit can be gleaned, but there's no parallel image for the S2EX's. Thank you in advance.

Sierra-2EX crossover is an overall more advanced crossover with regard to the filters themselves. It uses metallized polypropylene film capacitors, air-core inductors with very large diameter wire and NRX ceramic resistors (NRX = Non-Inductive) It really doesn't get much better....

2197

[Mag_Neato]

Sierra-2EX crossover is an overall more advanced crossover with regard to the filters themselves. It uses metallized polypropylene film capacitors, air-core inductors with very large diameter wire and NRX ceramic resistors (NRX = Non-Inductive) It really doesn't get much better....

2197

Dave, will the updated website include info on the crossovers for each model?

Speaking of updated websites........ are we there yet?!!:cool:

[Pogre]

Dave, will the updated website include info on the crossovers for each model?

Speaking of updated websites........ are we there yet?!!:cool:

I was wondering about that too! Dave said he's gonna use one of my pics on the new site so I've been kinda looking out for it.

[davef]

Dave, will the updated website include info on the crossovers for each model?

Speaking of updated websites........ are we there yet?!!:cool:

I am curious as to what type of info you are referring to with regard to crossovers?

New site is just around the corner, the back end is all set and fully functional, just waiting for me to review some items, tweak content etc. I am concerned about going "live" for the holiday season as there will likely be some downtime in the changeover.

[Mag_Neato]

I am curious as to what type of info you are referring to with regard to crossovers?

New site is just around the corner, the back end is all set and fully functional, just waiting for me to review some items, tweak content etc. I am concerned about going "live" for the holiday season as there will likely be some downtime in the changeover.

Dave, I'm just referring to consistency across the models. As mentioned, the Sierra-1's crossover is pictured with descriptive bulleted text, but no mention of the crossovers for Sierra-2 or EX. I know I like to see consistency in each speaker model's product pages as far as type of info and layout so you can more readily navigate to what you want to see and it makes comparisons easier.

As far as going "live" with the holiday season upon us, I can totally understand that could be disruptive if not implemented correctly. I just saw another manufacturer's website go live with their updated site and it is a major leap forward, so I was getting antsy!

[davef]

Dave, I'm just referring to consistency across the models. As mentioned, the Sierra-1's crossover is pictured with descriptive bulleted text, but no mention of the crossovers for Sierra-2 or EX. I know I like to see consistency in each speaker model's product pages as far as type of info and layout so you can more readily navigate to what you want to see and it makes comparisons easier.

As far as going "live" with the holiday season upon us, I can totally understand that could be disruptive if not implemented correctly. I just saw another manufacturer's website go live with their updated site and it is a major leap forward, so I was getting antsy!

Thanks for the feedback!

[Mag_Neato]

Thanks for the feedback!

You're welcome! Hope it is taken as constructive/helpful.

Hope you have a enjoyable Thanksgiving, as well as all the forum members!

[racrawford65]

Happy Thanksgiving to all!

[davef]

Sierra-2EX has now been upgraded to Sierra-2EX V2!

Please see here for further details: Sierra-2EX V2 (http://forum.ascendacoustics.com/showthread.php?7678-New-Sierra-2EX-V2!!!)