Filter Slope Question

Having a plan is good, but the room will dictate what your settings will be, the room has to seem energized as if a real rock band were playing in front of you. Then you have it dialed in correctly. Filters Suc, try and use as little as possible from the amp and use the crossover/filter in the sub. Also, some rooms sound like crap with 2 subs and some do not, set one sub up and listen for a few days before you add the 2nd one.


Matt M

The PEQ3 version of the plate amp, which is the version that is supplied as standard with this sub, provides an LFE input which removes the sub’s filter from the signal path. Have you considered purchasing that version?

Also, when providing bass managed inputs to the Line In connections of both the PEQ3 and the PEQ (non-"3") version of the plate amp (the latter does not provide an LFE input, providing 80 Hz high pass filtered line outputs instead), the corresponding manuals and the rear panel markings appear to recommend setting the sub’s filter to 12 db, not 24 db. That would seem to make sense, as having two 12 db low pass filters in the sub’s signal path would of course come closer to being complementary to a single 12 db high pass filter in the signal path to the main speakers than the 24 + 12 low pass alternative that was cited in your question.

Regards,
-- Al

Thank you guys for your responses.  I am embarrassed to admit that I created a problem where one does not actually exist.  After I created this thread an astounding revelation came to me (duh!).  Just disable the low pass filter in the preamp, run the full audio signal to the subs and use the low pass filters in the subs.  I can still use the preamp's high pass filter to keep the frequencies below 50hz out of my mains.  I wish the filters in my preamp were 24 db/octave instead of 12 db/octave slope.  It seems that a steeper roll off would make for better integration.

The A370PEQ version of the Rythmik plate amp includes 12dB/octave high-pass filtered (at 80Hz) outputs on RCA jacks. You can set the sub’s low-pass filter to 24dB (at either 50 or 80Hz), then combine the A370PEQ’s 12dB high-pass filter with your pre’s 12dB high-pass filter to achieve 24dB of high-pass filtering. I think! Call Danny Richie and ask him---he’s a x/o expert, and a really nice guy.