Having just moved my open baffle test speakers into my main listening room I found they exhibited some of that same confusion I heard in Thorstens system. Having put some absorption behind them to absorb the back-wave they have cleared right up. I think this is what I hear in your system T, as well as the amps and slightly lower SPL ability than the 12" Mags I am using on your recommendation.

My feeling then, is that open baffles (when designed for accuracy in the choice of drivers ect..) have a severe disadvantage in (IMO) NEEDING room treatment to deal with their rear output. Absorption in small rooms and diffusion (which works to a low frequency) in larger ones. However, once that handicap is dealt with, they take on a higher degree of accuracy than I have heard from any box speaker. The dynamics and imaging I am getting right now, even with these things I knocked up in 1 day and another playing with the Xover, is absolutely gob-smacking.

Of course box speakers need treatment too, but they aint so bad in the midrange as OB's when they don't have it.

So, I would suggest that you could SERIOUSLY benefit from some absorption behind those speakers T. You have some record storage at the moment don't you?