Okay I went a read the manual to my Marantz SR6009 avr. Mine has MultiEQ XT. There is NO option to set the volume knob of my sub before running Audyssey. If I set the volume knob to the 12:00 position as instructed in the Hsu manual, then Audyssey sets the level to -12 db. So, I went into the manual settings to run a test tone through the sub and turned the gain knob until I read 75 db on my SPL meter. I can't even hardly hear it, but the SPL meter did. Then, I ran Audyssey and now the level is set to -3.5 db. The distances/levels of the rest of my speakers seem to be very accurate. But since I have (2) subs, should I just use a Y-adapter and connect both subs from only (1) of my sub outs on my avr? Because, I am not sure I am hearing both subs when I run Audyssey. Perhaps, it would work better using a Y-adapter and only (1) of my sub outs, no?
Cheers,
Phil