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Thread: Information about new Sierra-1 and Towers?

  1. #101
    Join Date
    Aug 2010
    Location
    Eatonville, WA
    Posts
    15

    Default Re: Information about new Sierra-1 and Towers?

    Quote Originally Posted by davef View Post
    I hate quoting time frames because it then causes additional pressure to hit that deadline and we are going all-out with this product. To quote a classic, we will get there when we get there

    Seriously though, 6 months sounds about right.
    Awesome, I wont hold you to that. But i will try to get some money saved up so hopefuly i can be on the preorder list

  2. #102
    Join Date
    Aug 2003
    Location
    Ohio
    Posts
    1,066

    Default Re: Information about new Sierra-1 and Towers?

    Quote Originally Posted by davef View Post
    With regard to the tower, someone who has been waiting for a very long time suggested calling it the Sierra RT (as in reference tower) I like the name but we haven't finalized anything yet.

    Not bad. But I'd think that Sierra 1 NRT and Sierra RT would get confusing and the differences might get lost on the audio forums.

    You could stick with the Sierra /Ascend/reaching the peak of audio purity theme and call it the Denali. Highest peak in NA. Athabaskan for "The High One".

    I also like "Divide" for multiple meanings, although it is a more vague mountain reference. You are indicating it will be the watershed tower at its' price point. Maybe Sierra Divide? Ascend Divide sounds better to me and adds to multiple meanings.
    Last edited by Quinn; 08-20-2010 at 09:06 PM.

  3. #103
    Join Date
    Mar 2005
    Location
    Milwaukee, WI
    Posts
    711

    Default Re: Information about new Sierra-1 and Towers?

    Quote Originally Posted by Quinn View Post
    Not bad. But I'd think that Sierra 1 NRT and Sierra RT would get confusing and the differences might get lost on the audio forums.

    You could stick with the Sierra /Ascend/reaching the peak of audio purity theme and call it the Denali. Highest peak in NA. Athabaskan for "The High One".

    I also like "Divide" for multiple meanings, although it is a more vague mountain reference. You are indicating it will be the watershed tower at its' price point. Maybe Sierra Divide? Ascend Divide sounds better to me and adds to multiple meanings.
    I had also suggested Sierra 3RT if the tower ends up being a 3-way.Lots of options

  4. #104
    Join Date
    Apr 2006
    Posts
    248

    Default Re: Information about new Sierra-1 and Towers?

    Hi Dave:
    IS it possible to post the dimensions of the prototype tower? I completely understand that the design is not final yet and the dimensions might change later..

  5. #105
    Join Date
    Aug 2003
    Location
    USA
    Posts
    5,538

    Default Re: Information about new Sierra-1 and Towers?

    Hi Guys,

    For those of you interested,

    attached is an exploded drawing of the new tweeter.
    Attached Images Attached Images
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    Good Sound To You!

    David Fabrikant
    www.ascendacoustics.com

  6. #106
    Join Date
    Aug 2003
    Location
    USA
    Posts
    5,538

    Default Re: Information about new Sierra-1 and Towers?

    Quote Originally Posted by Sam1000 View Post
    Hi Dave:
    IS it possible to post the dimensions of the prototype tower? I completely understand that the design is not final yet and the dimensions might change later..
    PM sent
    .
    .
    .
    Good Sound To You!

    David Fabrikant
    www.ascendacoustics.com

  7. #107
    Join Date
    Dec 2003
    Location
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    771

    Default Re: Information about new Sierra-1 and Towers?

    Quote Originally Posted by davef View Post
    Hi Guys,

    For those of you interested,

    attached is an exploded drawing of the new tweeter.
    Speaker porn! Yes!!
    Jon O.

  8. #108
    Join Date
    Aug 2003
    Location
    USA
    Posts
    5,538

    Default Re: Information about new Sierra-1 and Towers?

    I will post more updates as more info comes my way...

    After confirming with our vendors, it seems we should have all of the parts here for the Nrt upgrade kit by the 2nd week of October -- about 7 more weeks.

    I wish it were sooner but all things considered, not too bad at all.
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    Good Sound To You!

    David Fabrikant
    www.ascendacoustics.com

  9. #109
    Join Date
    Aug 2003
    Location
    USA
    Posts
    5,538

    Default Re: Information about new Sierra-1 and Towers?

    Attached are comparison frequency response measurements. Stock Sierra-1 curves are green, Sierra-1 NrT are yellow.

    First graph is an actual in-room response at 2 meters, reflections and all, speaker placed in the middle of the room at about 4 feet high.

    Second graph is the same measurement with reflections taken out, unsmoothed. Bass response below 200Hz should be ignored and port tube output is not included.

    Third graph is zoomed in to better see what the new tweeter is doing compared to the stock tweeter.

    A few comments:

    1. Notice the considerable difference in high-frequency extension. Stock tweeter is about -3dB at 22kHz. NrT is -3dB at ~ 28kHz with much more information above 18kHz.

    2. The pesky dip at 3kHz has been reduced to only 1/2dB, which is inaudible.

    3. Two other dips in the response have been resolved.

    4. Overall curve is remarkably linear, coming in at an amazing +/- 0.5dB throughout the bandwidth of the speaker. (note, port tube output is not factored into the anechoic response, which will fill in the mild dip in output below 500Hz)

    I should mention that there is a lot more to this new tweeter than frequency response improvements. Improved damping, better transient accuracy, higher power handling, better cooling and lower distortion -- but I feel the most obvious way to visualize the improvement is to simply compare the response measurements.

    I took these comparison measurements just the other night and I grabbed a random Sierra-1 from the production line. Interestingly enough, look how close the Sierra-1 quasi-anechoic in-room measurement matched up with the anechoic measurement for the Sierra-1 on our site (you must ignore the new measurement below 200Hz). They are almost identical! Considering the speakers production dates are nearly 4 years apart, that is remarkable and something even I did not expect

    Enjoy!
    Attached Images Attached Images
    Last edited by davef; 08-27-2010 at 12:15 AM.
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    .
    .
    Good Sound To You!

    David Fabrikant
    www.ascendacoustics.com

  10. #110
    Join Date
    Mar 2010
    Posts
    27

    Default Re: Information about new Sierra-1 and Towers?

    Thanks for the info, it'll make those 7 weeks seem longer.

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