Bear with me here...
I was auditioning Ascents (again) at my local dealer for several hours yesterday. I felt like they were lacking something, so I had the dealer roll in a Depth. That did it...
. The Depth phase was initially miss-set, which I could hear. It just sounded muddy. Before I could say anything, the dealer "... had an argument with himself"
and came back in the room and set the phase to 270. It dramatically cleaned up the bass sound. He mentioned that when he left, he thought it didn't sound right.
After several hours of that, just to torture me, he had me go listen to the Summits, tied into a stack of Audio Research REF tube gear (about $21k). They were wonderful. The built-in bass drivers sounded roughly similar to the reinforcement supplied by a Depth, and the panels were even more transparent than the Ascents. For those that consider MLs to be lacking in bass, the Summits might change your mind. I'm sure that the better gear up front helped too, but the Ascents were driven by Musical Fidelity and Levinson CD transport which is certainly no slouch.
I still can't bring myself to spend the extra for the Summits - we all have different priorities - but am about to pull the trigger on the Ascents/Depth. None are in stock at ML, but they said that it would take about six days to build some.
P.S. - the Summit does look very different. I can't decide if they would grow on me or not. If they had radiused the back corners, I think that they would be more aesthetically pleasing. The overall impression is that they are smaller than Ascents, although that may just be perception. Up close, the new panels are very jewel-like, almost glittery in a pleasing way.