The KEF LS50 is the best of the bunch IMHO by far. BUT they must be fully broken in and placed the right distance from the wall and they will not sound thin.
The other thing is that they literally shine with tube amplification. I too heard them at AXPONA in way too large of a room with coarse sounding solid state amplification. The KEF team seemed to be attempting to push them to their limits to compare side by side with the blades. In the process they did a total disservice to the sound quality capabilities of the LS50s.
When heard on a nice 25 watt tube amp they are spectacular and believe it or not sound reminiscent of the Joseph Audio Pulsars.
The other thing is that they literally shine with tube amplification. I too heard them at AXPONA in way too large of a room with coarse sounding solid state amplification. The KEF team seemed to be attempting to push them to their limits to compare side by side with the blades. In the process they did a total disservice to the sound quality capabilities of the LS50s.
When heard on a nice 25 watt tube amp they are spectacular and believe it or not sound reminiscent of the Joseph Audio Pulsars.