Luxman L-550a L-550AX

This is the L-550AX version (last version before current model, the L-550AXII) The Audiogon drop down menu would only allow me to choose the "L-550a" designation. USA Model. 20 W/Ch Class A amp. Powerful, plenty of current for most relatively efficient loudspeakers. Bought new from authorized dealer about 1 year ago, perfect working condition. It has a brand new transformer in it installed by Luxman USA - when I bought it, it had a very slight hum. Now it does not. Like new condition, no visible flaws that I can see, works perfectly. Awesome amp, I would easily live with it if it did not get so hot and I already have a tube amp. Only used for about 8 months.