My BFD experience.

[Eddie Horton]

Well, last Sunday was the day I finally broke down and ordered a Behringer Feedback Destroyer to EQ my sub. According to UPS, it should be here when I get home from work tomorrow. So far, I've burned test tones to CD from 18Hz-120Hz, and created a chart to plot the measurements for before and after EQ. I've found a guy from Alabama (the best state) who posted a comprehensive setup guide at www.snapbug.ws Seems like everything one would need to get started. The only thing that I still need is a better correction chart for the Rat Shack SPL meter. I found one, but it skips frequencies too much, and you'd have to guess what values to add for the other frequencies. Anyone know where to get a better one? On the dude's web site, he says there is a compensation chart for Excel that automatically corrects when you enter values, but I don't have Excel on my home computer so...... Anyway, that's where I'm at right now. Just wanted to get this thread started so I could share my experience with the BFD. More to come............

[jermy4]

Here you go ... this is from the excel spreadsheet:

[bikeman]

You can download a free Excel compatible program here. I highly recommend this product.

http://www.openoffice.org/

If you use Sonny's excel spreadsheet @ snapbug, the accompanying graph has a built in dip at 111hz. Don't try to compensate for this dip unless it's reflected in your actual numbers.

David

[Eddie Horton]

Thanks, guys. I plan on getting started when I get home from work today.

[Lee Bailey]

Even though it's not free, RivesAudio makes a test CD that has a set of tones already modifed with the corrections built in for the RS meter.

[Eddie Horton]

Got home from work today and the wifey had signed for the package. Everything arrived from PE in great shape. Opened the box, and wow, I almost freaked out at the size of the owners manual until I realized that it was translated into about 30 different languages. Right now, I'm printing the setup guide from snapbug's site......should have already done that. As soon as the printer stops, I'm gonna get after it and see what kind of damage I can do. Later.