>> Try using the main outs with a "y" cable if neccesary. <<
Okay, I'll check tonite to see if I have a spare Main Out to do this.
>> You aren't using the processor xover and the sub xover at the same time are you? <<
I'm not sure if this is true or not. The H-K allows me to specify the size of the main/center/surround speakers to Large or Small. The mains are set to Large and the rest are set to Small. There is also a setting for Subwoofer On/Off, obviously I have it set to On. In addition, there is a setting for Subwoofer Trim, specified in + or - db, I have it set to 0db.
The subwoofer allows me to set Level (from 8 o'clock to 4 o'clock), I have it set at approx. 10 o'clock. Phase is set at 0 deg., the other choice is 180 deg. The lowpass filter (24 db per octave) is variable from 40 - 160 Hz, I have it set at approx. 60 Hz.