Ah, thanks Paratrooper!

No output level adjustment on the 578As. Strange!

I just started pulling everything out tonight to set the subs up as Soundhound recommended. Thanks for adding that you like that setup. I have no rear access to my audio gear and it's a major pain to break everything down and reconnect. I decided to go ahead and do the 950 EPROM upgrade while I'm at it though. Nice to know that it should be worth the effort.

I'm guessing that this new "stereo sub" setup will make it easier to get the sub calibrated for ANY source. I guess now though I'll need to use the sub's gain control for sub level calibration.

Cary