1.2kw's. Not that I am unhappy with what I have, if I never got them, I'd bo ok, but I did listen to them at audio classics and I have and can still hear why it wouldn't be a waste of money if I had it. but those amps REALLY make flawed sources obvious, but they do also reveal limitations in amps beneath them in the chain, but, they cost considerably more than what I have and I am not sure I have enough good recordings to make it worth it. to those who say they couldnt hear a difference, well maybe because I don't know what other people can or can't hear and who am I to try and tell them they can hear it, BUT I used to think my own hearing wouldn't be good enough to discern a difference, but to my surprise, I can. But not all those differences are improvements, sometimes the difference is you can hear how flawed the source material can be, so the differences you will hear may not be good ones.