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Old 02-10-08, 05:03 PM   #2 (Link)
 
brucek
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Re: Not happy with my PB13-Ultra, yet.


Quote:
Any guidance is appreciated
Your response does not appear in line with the specs of a PB13 that says it is: +/- 3 dB 18 Hz-150 Hz (anechoic) in 20hz mode. Yours begins to drop at 35hz..... so there's some sort of problem.

Perhaps the location is causing the abbreviated bottom end. I would first drag the box to the middle of the room and do a near-field response on it. Put the subsonic filter at 10hz.

brucek


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