+1
I have 2 of these Harman Crown XLS 2500 DriveCore amps.
440wpc RMS 8ohm x 2ch, 775wpc RMS 4ohm x 2ch, 1200wpc RMS 2ohm x 2ch.
XLS Drivecore™ Series
Noise floor - like Emotiva and many amps - has slight hiss sound if you place your ear on the tweeter, but silent from 6" out.
Fan noise - silent from 6" out.
SQ: excellent.
3yr warranty, and weighs only 10lb each!
The ATI amps are dead silent on the noise floor (no hiss even with ear on tweeter), but weighs 100+ lbs!
Amplifiers