Ok, here is what I have.
Bose acoutimass 6 III 5.1 set up.
Yamaha RX-V667 : 7-channel 630W powerful surround sound (90W x 7)
HD Audio format decoding: Dolby TrueHD and DTS-HD Master Audio; Dolby Digital Plus and DTS-HD High Resolution Audio
Discrete amp configuration
Pure Direct for HD audio and video enjoyment
Low jitter PLL circuitry
Assignable amplifiers for bi-amp connection
Intelligent assignable amplifiers for Surround Back / Front Presence or Zone 2 connection
Now what I did is try to integrate a Klipsch Reference RW-12d 12" Powered Subwoofer.
I am using the RCA front speaker output on the receiver and the input on the sub.
I used "YPAO sound optimization for automatic speaker setup" and it said sub 1 is out of phase. It sounded great at first! Then I moved the bose sub to the left of the tv, and moved the klipsch to the right and did another YPAO test...still says sub 1 is out of sync.
Does anyone have any suggestions, on settings/configuration...what should I set the klipsch sub in dB and lowpass and phase settings on the receiver. they both have settings for these.
I was playing with the lowpass on the receiver and the sub almost took my house down....
8O