Yes we hooked the sub outlet up, in fact we have tried it hooked up and unhooked with no change in output. Adjusting the base level from -6 to +6 changes nothing. Turning the sub option on and off changes nothing.

I'm begining to think mine is turkey. At least they have the 30 return if not satisfied. I passed on a new Marantz 9300 for $2100 because of all the great things I read about this combo. I think I'll spend the rest of the day kicking myself in the ass.
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HT:
Sony KF-60XBR800 monitor
Outlaw 755 (200x5 surround channels)
Cinenova Grande (300x3 front L/R channels)
JBL S412PII Front
JBL S38II Side
JBL S26II Rear
JBL S Center
Sony SAT TiVo
Samsung SIR-T5360 SAT HDTV Reciever
Pioneer DV-563A