PB-4000 Am I doing something wrong? - Page 10 - AVS Forum | Home Theater Discussions And Reviews
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post #271 of 272 Old 09-18-2019, 06:18 AM - Thread Starter
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Originally Posted by jamiebosco View Post
Dave has been MIA for a few months now
Well that sucks. Thanks for the heads up.
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Currently, 5.1 setup
AVR - Denon AVR-X4400H
Sub - SVS PB-4000
Mains - Klipsch RP-600M
Surrounds - Klipsch satellite speakers
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post #272 of 272 Old 09-18-2019, 11:52 AM
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Originally Posted by pfar54 View Post
@David Charles

Are you still up for doing this? After moving, I finally am starting to get some free time. About two months ago I tried calibrating this to the new room it is in and the results weren't what I was expecting at all. I added my Klipsch sub to see if two subs would help and I think it is actually worse. During normal tv watching at around -15 volume, I can barely even hear the sub.

Keep in mind the room is a lot larger than before. It is now 27' x 22.5' x 12.5' (at the peak height).
This sounds like a set-up and digital bass management issue more than anything. I would take the Klipsch back-out - they don't have anywhere near the same FR and phase response and won't integrate very well.

The PB-4000 has lots of output capability, so it can easily fill this size room - we just need to make sure that:
  • the AVR is getting a bitstream DD 5.1 from your TV source(s) - many TV signals are default 2-channel PCM
  • the digital bass management settings in the AVR are optimized and the subwoofer is getting all of the redirected bass and the LFE .1 channel
  • the overall subwoofer calibration level is where you prefer it - many enthusiasts find the post-calibration baseline level match to be underwhelming
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