The Made in USA Golden Tube SE-40 is a Single-Ended, Parallel, Pure Class A tubed power amp capable of 40 watts @ 8 ohms into 2 channels, or it can be bridged into a mono amp producing 80 watts into 4 ohms. It uses six 5881/6L6 and two 6SN7GTB tubes. This is a wonderful sounding amp with minimal grit and grain, spacious soundstaging, fast transients and is very dynamic. I used it to drive a pair of Wilson Cub speakers. It has been sitting in my closet for about 5 years now and it's time to let it go. I notice there is an active user forum for this amp with many mods possible. It is cosmetically fine but I can't remember how many hours are on the current tubes. I'm sure this amp will make more beautiful music than comparably priced solid-state amps out there today and compete very well with the tube amps coming from China but at a much lower price. Will ship in original box with user manual.