Eureka!
Ok, not sure what I may have done wrong on the other receiver to give the poor initial impression, but again agonizing over how these B&W's formerly known as paperweights sounded so completely flat. And again miffed as I A/B'd them with the Ohm's - So just for the hell of it I go into the audio adjust with just the B (B&W's) on, and adjust the treble/Bass (I typically keep em both in the 8-10 out of the 1-12 depending on what I'm listening to.), and low and behold I'm not hearing any change; back to A... yep, as usual I can discern the difference in sound with a single increment move of the bass/treble on the Ohm's. But on the B&W's I can go all the way down to -12 and no difference; I'm starting to get excited. I can't unhook the Ohm's fast enough. I get the B&W's plugged into A, and eureka! Miraculously I can now adjust the treble/bass on the B&W's. And more importantly... their sound output is night and day!
I can't describe the relief. It's like having your cousin get back her paternity test and finding out that it's not yours. What?! We've all been there, right!?

Disaster avoided!
Well... my ego took a hit for not being any kind of thorough on checking the simple **** (As I know many of you suggested.). Normally I'm a delicate flower when it comes to my ego, but the joy of being able to enjoy these speakers as I'd expected to has managed to quell that for now. Now I'm sufficiently impressed with these little 20lb. shoe boxes.
So... I'm too busy
listening to have bothered Google'n my little
audio adjust conundrum. I'm using the A/B
front speaker inputs. The EPI's sounded great on the B inputs before they met with their demise. It couldn't have been operator error. I think my brief history here supports that.

So now I just have to decide whether to mount these shoe-boxes in my work van or master bath?
Thanks to all for taking the time to comment.