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Looks like I need the BFD (graph attached) (1 Viewer)

Christopher M

Stunt Coordinator
Joined
Feb 24, 1999
Messages
88
So, I did some tests last night. I set the volume to do 70dB on the Sub with the receiver Test tone. I then ran through the test tones on my SVS 20-39PC+

I only ran the tones with the sub+mains on from 50Hz up. Crossover on the receiver is set at 80Hz.




I have a really solid dip around 40Hz-45Hz. The rest below 40 Hz doesn't seem too horrible. I will be getting the BFD.

Murdock
 

Christopher M

Stunt Coordinator
Joined
Feb 24, 1999
Messages
88
No, not on that. We got it where it "sounds good" to us. We could try.
I didn't think the phase would matter a whole lot as far as the levels go. The mains don't seem to be canceling any of it out, or boosting it more than I'd expect really.
That Blue line is the sub all on its own, no mains at all.

Murdock
 

PaulT

Supporting Actor
Joined
Oct 28, 2002
Messages
932
You may have difficulties in getting a 8-10dB Boost at the 45Hz point without using a lot of dynamic headroom.

Read through Sonnie Parker's excellent BFD setup guide at:
http://www.snapbug.ws/bfd.htm

Pay close attention to the Gain section near the end of the article.
 

Christopher M

Stunt Coordinator
Joined
Feb 24, 1999
Messages
88
Yea, I had read through that. I plan on trying to bring that up as much as possible without the BFD, and then cutting the other peaks down to match that one.

Murdock
 

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