Yep, well aware. No Audyssey here but easy enough to test anyway. I am just disappointed that, should this be the issue, it's on a pair of speakers that rivals some whole home installs. I had another pair of speakers on loan that were incredibly accurate so I am inclined to go with the new tower before digging into other equipment but I see your point. Without that contrast I'd be starting at source -> pre -> room corrector -> amp -> speaker and killing a whole day, may end up that way anyway but we'll see.
My reference tracks in this instance were selected movements from sinfonietta by janacek conducted by antoni wit (all around awesome recording), modest mouse - broke (personal reference), rage - take the power back (everything hits so hard and is so impressive sonically). Didn't have much time aside from that.
Be great to hear what you guys use when testing equip for the first time.
Edit: Glad to head you got it going Mike, enjoy!