Oh my I'm so glad I left HT 10 yrs ago and went right back to good ole 2 channel.I'm sure somebody will answer your question though.
Yes this can be easily done.
I have teo JL E112s and I have a two channel system passed thought for home theater. To make it even more complicated I low pass the mains and send the low effect signal to the subs at the same time for movies. The subs manage both signals.
On the JL audio subs the left and right inputs are summed. From the two channel each sub gets a speaker level output from the preamp and from the receiver each sub gets a 0.1 channel output.
This setup allow the subs bass outputs to be adjusted up using the 0.1 signal from the recover while still low passing just the front speakers at the volume of the sub settings.
I'm running a Polk sub that accepts the outputs from both a receiver (mono out) and my main 'pile' (L&R) without any issues.
I don't run both at the same time, but haven't tried it either. *L* I could send two entirely different program sources to the Polk which could be amusing to listen to for awhile...
I'd think it'd rattle itself over to me and inquire if I'm pissed at it, or merely on drugs. ;)
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!
Erik's right, if you've the desire for that level of control.
In my case, the mains have 'all the bells 'n whistles' (stand alone digital eq & xover) and the rcvr can either act like one or just act like a 'dumb box' amp, accepting a signal from elsewhere....
With the above And the digital eq in the 'puter, I can have exquisite control or gross deviancy...*L* I tend towards the former....mostly...;)
I was considering a similar situation. However, I have Mac c2500 which has Home Theater Passthru and Marantz 7011 for HT. Hooking the sub up to both, and using the way most preamps treat passthru, you cannot have both amps ever driving the sub at the same time. In other words if the HT Marantz is on, pass thru on the Mac pre shuts off all but the Main, output 1 to monoblocks, for the fronts, and other amp outputs 2, such as to a sub, are disabled. Hence, the sub will be driven by HT if it is on, and if it is off, passthru is off and the 2 channel pre works like normal including the now the sub. The sub cannot be dual energized. I do not know what the Krell has as functions and connections, so none of this may apply to a possible solution for you.
Mmm....mostly likely 'sum', and you'd get 'musical MixMaster'. As long as it's not up to 10 on both or either....IMHO, I haven't tried such with mine.
I do listen to 'odd stuff', but I pass on the straight up involuntary or even intended. Per the later, I'd opt for some sort of control if only for the amusement of it. But 'delays' show up in even the most benign or unforeseen places, unexpected echos(os,os,os,os,s.s.s....)
Just go forth with a little trepidation and conservative levels, as see what the results are. As long as the volume isn't maxed, should be kewl. Worse is a visit by the feedback daemon and you jerk the plug ("Don't Do THAT!" *L*).