Originally Posted by dhallag
thanks shelden. yes that is how my sub is designed and i just hooked it up that way last night. this definitely solves my problem. from a sound quality, it feels this sounds tighter than having the sub connected via lfe.
I'm glad it helped.
shelden, is there a way to configure the fronts for full-range?
I'm not sure what you mean:
a. have low frequencies come both from the front speakers and the sub (so you can run with just the fronts for music, and/or with low frequencies boosted when both are in use), or
b. configure the receiver to treat the fronts+sub as full-range speakers.
To do the former (a), wire the fronts directly to the receiver and then run additional speaker cables from the fronts to the sub. That way the fronts get the full-bandwidth signal directly from the receiver, unfiltered by the sub's crossovers.
Driving full-range speakers from the receiver has two issues that need to be considered, although they might be unimportant for your situation.
First, this configuration might cause some audible problems when both fronts and sub are in use, since the natural low frequency roll-off of the front speakers usually is not so well matched to the high-frequency roll-off in the sub's crossovers. Some subs have adjustable crossovers, though.
Another issue is that the receiver would have to provide more power in the lower frequencies when driving the fronts. Having the sub first, so its crossover keeps the low frequencies from getting to the fronts, means that the receiver has more "headroom." More power is available for the receiver to drive the upper register, since the sub uses its own amp.
For the latter (b), that depends on the receiver you have. It's just the usual full-range setting in one of its speaker configuration tables. The receiver can't tell that you're using a sub that way. So far as it's concerned, you simply have high quality, full-range front speakers and no LFE speaker.
p.s. If you re-run the Audyssey calibration, then you shouldn't have to change anything in the receiver. It'll set the speakers correctly.