Svs Pb10-isd

[Nicholas Mosher]

Well I guess I can call off the lookout...
Parts Express told me "Wednesday at the latest!".
Just received the tracking number... Tomorrow...

I need to go buy some new SACDs. Now that my mind is set on getting something today, I will dammit!

Waiting sucks.

[Mag_Neato]

Curtis.....

From what I have been told, you need to go from your LFE-out to a RCA-to-1/4" adaptor into the BFD, and a 1/4"-to-RCA adaptor from the BFD-out to another patch cord to your sub.

I'm hopefully going to pick up my BFD in the next week or two!

[bikeman]

"BFD gurus, as far as what is needed to hook the thing up.....a couple 1/4" to RCA adapters and another sub cable....right?"

The adapters for sure. I just used a regular RCA cable from the receiver to the BFD. Then I used my sub cable from the BFD to the sub.

David

[curtis]

thanks Ed.....that's how I understand it too.

guess I will have to order another shorter rca/sub cable from BlueJeans.

[Nicholas Mosher]

My ears have never been so worn out in my life!
I used all cuts, no bumps.

I left a small ramp starting at 20Hz scaling down 5dB to 50Hz.
FR from 50Hz to 85Hz is +/- 0.5dB.
I have a small +1.5dB blip at 90Hz, but then it flattens back out through 105Hz.
The one thing that erks me is a small valley from 105Hz to 115Hz, oh well.




Because I'm in a 1500ft^3 room, I had no problems with red blips & clipping on the BFD. I still have the PB10s gain knob at 75%, although I boosted the volume via my pre/pro by 4dB. Darla tapping the fishtank in little nemo at 95dB yielded 1 or 2 green bars, thats it.

I could immediately tell the difference once that 65Hz peak was knocked down. (I listened to movies after every 2 or 3 filters) Less humble-bumble during intense action scenes. The subwoofer also blended-in except for a few extreme passages. I originally left the 20Hz peak, but it was so much higher than the rest of the curve that I had to bring it down some, it just didn't sound/feel right. Unfortunately this seemed to really hurt the infrasonics. While scenes like the ring drop and frodos heartbeat are present, they don't have the same ultra-low bone-shaking phenomena. I was getting a little-bit of that before, but now its almost nil.

As far as music is concerned, I'm going to listen some more tomorrow before I respond.

At $100 the BFD so far is an incredible piece of gear! I was lucky to have one spare Outlaw RCA cable, but I got hosed $5 for 2 RCA/phono adapters at Shack of the Rat.

More tomorrow...

[Mag_Neato]

Looks good!

What guide did you use? (Snapbug, etc.)

I took some measurements yesterday. There's a gig, nasty peak of +19db at one point. What's the max. cut/boost available with the BFD?

[Nicholas Mosher]

I used Sonnys guide (snapbug).

I think the limits are like +15/-45 or something. I'm too lazy to check...

[Mag_Neato]

I looked at the BFD manual online........you are close enough for government work!

It is +14/-48, plenty of cut for my peaks!

I used the Rives test CD 2 which includes both linear(flat) test tones and a duplicate, modified set of tones which allows the Radio Shack meter to read accurate without the need to convert the readings.....slick!

I was a bit surprised at some of the peaks. No wonder I feel things could be drastically improved! I have one at 31.5 and 62hz which are fairly big. It read flat(80db) at 25hz, and was down approx. -18db at 20hz.........my sub is ported and is only rated to 24hz.

I can't wait to get the BFD in the system and knock down those peaks.

[bikeman]

Hey, Mag. Do you have the opportunity to experiment with positioning? I found that to be a big factor. I found a better position for the sub and that made the work with the BFD much less complicated.

David

[Mag_Neato]

I am pretty much stuck with the subs current position.......right front corner.

WAF, kids and present room layout limit where it is.