I dont know what you call low end but 40 hz is low enough for most music, and the klh will do 40 if placed together (some sacrifice of imaging). Having said that I did notice that with 200 watt of clean solid state power the acustats rocked! More dynamic and more bass, but I was in a concrete garage with block walls and was sure that made them sound louder.
If i could have bought the accustats, i would have. Someday soon I am going to hook the KLH to ss instead of tubes. I have a 200 watt mosfet i would like to try on them, I think this would give better base and some of the tube sweetness on top. I will have to be careful with the volume as the klh are only rated for 75 watts.
I am nervous about just hooking this amp up, because I know when hooked to crown ss (DC150 or 300) the manual calls for a cap and resistor in the speaker lines for impedance matching. Does anyone know anything about this?
THX,
Dale