Dual-Use Subwoofer?


Not quite sure where to put this question - hope it’s in the right place.

My HT and audio systems are separate because my ’good’ stuff is reasonably good, my ’ordinary’ stuff is pretty ordinary, and I don’t want to ’taint’ the good stuff with ordinary stuff.

HT ’boxed’ system:
HK AVR254
Infinity surrounds & sub (sub fed by LFE from the AVR)

Audio:
Krell KRC-3
Bryston 4B-ST
Martin Logan reQuest
Polk PSW650 (signal fed by the preamp)

Because I live in a space-constrained home and want to give the ML’s the ’breathing room’ they really need, I’m wondering if it might be possible to ’consolidate’ by using only one Sub. The Polk unit is the more musical, definitely more than adequate for HT, has both LFE and Left/Right analog inputs, therefore would be the obvious choice.

Do you guys think it would be possible - or at worst, risky - to use the LFE input from the AVR and use the L/R analog inputs from my preamp for the higher-end stuff? I just don’t know my ass from a hole in the ground about electronics and don’t want to risk burning anything out in either the sub, the receiver or the preamp.

Thanks in advance!
parabolic

Showing 4 responses by parabolic

@asvjerry  that's exactly the kind of configuration I was asking about, and exactly the kind of response I was hoping to hear - or a warning not to do so - either way would have been fine.

Thanks to all!
I think a mini-dsp is more complicated than this requires.

My plan is to set the tonality of the SW to the audio system, and use the AVR to conform to that adjustment since the outupt on the receiver is variable.

My worry was simply with the possibility of signal from the Krell damaging the receiver, or vice-versa.

We're good to go.  Thanks!
My AVR has settings in the DSP for crossover and volume output for the sub and main speakers. Once I have the sub dialed into the audio system, I can tweak the receiver. I think no extra equipment will be necessary.
Though I'm not going to be listening to both at the same time, it is possible that both might be powered on at the same time.  But for argument's sake, what might happen if accidentally signal were sent to the sub from both sources?