I recently purchased a pair of M22's (2 way) for a second setup thinking it would be inferior to my main system consisting of sealed Selah Audio Tanzanites (3-way) which have Foundtek ribbons, Morel dome midrange, and a Seas Excel 7" woofer. Boy am I pleasantly surprised, that when I went back and forth between the two, the Revels sounded better.
As a little background, my room is about 14x17 and the speakers are about 7 feet apart, 2 feet from the front wall and 3 feet from either side wall. The first reflection points are treated with absorption and there's plenty of furniture, however the floor is tile. The LP is about 8 feet from the speakers. The speakers are driven by a Rogue 66 to a Pass Aleph J, and listening was done with and without the sub, a James L4000P.
I was initially very impressed with the Selah's when I had initially purchased them several years back. Great detailed highs and imaging. The bass was superb as well, but the midrange was a little less detailed than the rest. Mids from the Morel dome lacked warmth and detail that the other drivers brought to the table. Female vocals didn't have the warmth you would expect. The Selah's had trouble soundstaging in my room and I found the highs while detailed slightly directional. I've always been a fan of ribbons for their detail but soundstaging was always lacking compared to a conventional tweeter. Obviously, I'm focusing on the negative aspects, but the speaker as a whole is still terrific package.
The Revel's being ported, there was plenty of bass without the subwoofer on, but you could still tell the last octave was missing. After all, the Revel's only bring a 6.5" woofer with a much smaller cabinet than the Selah's. If I had to compare the two, they both are very comparable with the Selah's taking the edge with the Seas Excel woofers. The difference is less noticeable with the use of the sub. I maybe probably be biased, but I have always liked the sound of ribbons (vintage Infinity's) and found them to be very detailed and the Selah's do deliver. But in terms of creating a cohesive image and soundstage while delivering minute detail, the Revel takes the cake. The Revel's disappeared like the Selah's couldn't. Off-axis response is incredible and moving around from the sweet spot, the SQ is still great. I recall looking at off-axis measurements of Revel speakers and how superb they were. Now I heard for myself, I'm a believer. Vocals sound more organic and warm on the Revels something, I felt the Selah's were lacking.
For my room and my gear, I would have to say the Revel's are a noticeable step up from the Tanzanites. I think going into a larger room, the competition would probably be much tighter. What really surprised me is the imaging and soundstaging of the Revel's. I think all that research in anechoic chambers really paid off. I wasn't quite sure why Stereophile would rate these guys Class A, but I now hear why. The Revel's probably aren't for everyone, and if I were to describe the Revel's I would say they have warmth but still manage to be as detailed as any other modern speaker. Now I'll probably have to sell the Tanzanites and look for some Gem's to fill my main system.