I heard the DA1's on 2/14/09 in a very large room driven by some Manley monoblocks and a VTL pre and thought they were just fabulous. This was at a meet and a lot of recordings were played. We were seated at the end of a very large triangle, much larger than the average listening room, and they presented a convincing stage with no sweat. They were quick, coherent, and capable of HUGE dynamic swings. I dig em!