Vintage Kustom Rack Mount Power Amp. Back panel says "OUTPUT: 260 WRMS" which I take to mean 260 Watts RMS. I think it's probably a total of 260. In other words, probably 130 RMS PER CHANNEL. I don't have specs for it, but that's my opinion. I used it for the high end of a Triamp Stereo System, and it had more than enough clean power to drive the top end.