I have just bought the Emitter II exclusive blue version . My current amps are Mark Levinson 33monoblock that are on 220 Volts 40 amp breakers each . The Emitter has deeper bass, is more dynamic has better transients and a way better soundstage presence. I have been using Watt Puppies 5.1 with the AR LS1, CAT and the Calypso . The watt puppy are probably an easier load to drive but the Emitter has plenty of juice to make them sing . Good Luck