Audyssey - Calibration of Onkyo 705 with NOW SVS 7.2

[tilallr1]

Ok ... so I did a recalibration yesterday and everything does sound much ... much better with the sub moved near the left front wall. I guess no matter what you do Audyssey cannot fix a badly placed sub. Also, I took 6 measurements around my primary listening area instead of just 3.

Anyway, interestingly here is how the crossover setting on the Onkyo turned out:

Subwoofer - Yes
Fronts - Full Band *** Which I Manually Changed To 80Hz (THX)
Center - 150Hz
Surrounds - 100Hz
Rear Surrounds - 150Hz
2 Channel Rear - Yes
LFE - 80Hz (THX)

Now the surround sound and bass have a much cleaner and more encompassing feel.

Also, interestingly enough, the Sub volume went up to -6dB. It is also much more pronounced. But does not sound boomy. Although my door now rattles, which I will have to fix with weather strips, or leave it slightly open.

NOTE: After reading further I have discovered that the Receiver should be reading a range of +3dB to -3dB on the Sub. So I should be turning the gain down on my Sub until Audyssey sets my receiver somewhere in that range. So I guess another recalibration will be in order.

My major question is, why did Audyssey setup the crossovers so high on my center surrounds and rears? Although they sound great, am I now missing sound (.1 range) out of these speakers because of these settings?

I tried setting them all to 80Hz (THX), but they didn't sound as good. I assume it has to do with the bass dynamics of my room. But I don't understand why.

Any insight? You can see my setup if you click on my HT Gallery to the right.

Thanks.