Thanks for the response, bruce.
Oh, sorry for any confusion, I don't have the full-up Audyssey unit... I'm only using the MultEQ XT version in my Onkyo 705.
I've only recently learned that I can't take full range sweeps using my RS SPL Mic... my latest are only 15-200hz.
I'm contemplating buying the ECM8000 and Xenyx 802 setup... wondering how far I want to take this new interest of mine.