It has been a year since I last heard a Diablo 333. Was able to hear the 333 at Axpona and off site. The Diablo 333 had a nice tonal balance. The Martin Logan room, with the 333 powering the 13A, sounded nice, and by far the best that the ML room has ever sounded.
At the off site location, the Diablo 333 was connected to small Marten speakers on stands. That setup also sounded nice.
The Diablo 333 sounded clean & smooth, and dynamic, with good imaging, but they also had a rightness to their sound that goes beyond that description.