What's new

PB10 pictures and measurements (1 Viewer)

Ilkka R

Second Unit
Joined
May 19, 2004
Messages
270
Real Name
Ilkka
Here you can find two galleries. Links are Finnish, but just click them. My friend owns the sub, I just made the measurements and gave my opinion about the sound. :)
Room is very small, less than 1500cu.f. Concrete all over and that makes it sound a littlebit boomy and undetailed. He is thinking of buying BFD some day, that should help a littlebit.

First graph is sub+mains.
Second graph is sub only xo 100Hz.
 

Ilkka R

Second Unit
Joined
May 19, 2004
Messages
270
Real Name
Ilkka

Yep, it's kinda hard to lift it, because it's hard to get your hands around it. Cylinders are more easier, just one giant bearhug and off we go. The old rugtrick works best with boxes.

Actually it looks/is even bigger in nature. But not too big. :)
 

Edward J M

Senior HTF Member
Joined
Sep 22, 2002
Messages
2,031
Great pics, Ilkka.

Looks like a big peak in the 45 Hz region - this will give the boomy sound. I agree, a PEQ would fix that right up.

How does the sound meter being connected to the sound card and TrueRTA work out?
 

Ned

Supporting Actor
Joined
Feb 20, 2000
Messages
838
This is about what you want vs what he has.



A good 10-15db too much bass from 30-200hz, "boomy".
 

Ilkka R

Second Unit
Joined
May 19, 2004
Messages
270
Real Name
Ilkka
It worked great. I have done measurements before with my own equipment, so it was kinda plug and play. ;)

I checked the levels in oscilloscope mode so it won't override the incoming signal. Also corrected soundcard anomalies with the ss calibration option. MCC was of course also applied. RS meter gives 0-1V output, so it's perfect for regular soundcards like Audigy etc. No mic amp needed.

That 45Hz peak is a nasty standing wave, comes from the room's length 12ft. It can also be seen in mains FR.
 

Ilkka R

Second Unit
Joined
May 19, 2004
Messages
270
Real Name
Ilkka
Ned, no, that is not what I/he wants. Draw a straight line at 70dB, that's what I want. 10dB house curve doesn't sound good. Max 5-6dB house curve but with music you don't want it.
 

Ned

Supporting Actor
Joined
Feb 20, 2000
Messages
838
Well, your hearing sensitivity trails off as the frequency decreases so a flat response will sound weak. But, you're free to setup whatever sound you/he wants. I'm sure there is a curve named for this phenomenon :)
 

Ilkka R

Second Unit
Joined
May 19, 2004
Messages
270
Real Name
Ilkka
Ned, I suggest you to read this. Not everybody likes how house curve sounds. Yes, and I know F-M curve. 3-4dB boosted (under 100Hz) flat curve does sound best for movies IMO. For music flat.
 

Axu R

Agent
Joined
Dec 18, 2004
Messages
30
Yeah well, this thread is about the sub so keep it that way, please. Comments and questions about the sub are more than welcome!
 

Axu R

Agent
Joined
Dec 18, 2004
Messages
30
Just to remind, that I'm still very pleased with the sub. We have ~4 of these in Finland now, and they all are in heavy use, I believe. Greetings to Tom, Ron, Erik and the whole crew!
 

Users who are viewing this thread

Sign up for our newsletter

and receive essential news, curated deals, and much more







You will only receive emails from us. We will never sell or distribute your email address to third party companies at any time.

Latest Articles

Forum statistics

Threads
357,017
Messages
5,128,533
Members
144,246
Latest member
acinstallation636
Recent bookmarks
0
Top