I'm playing a killer 1995 Marshall JTM60 Tube Head hrough a 1971 Marshall 1960A Cab using a Nordin Comet Krystin guitar. These amps are an insane bang for the buck. They have a reputation of overheating, which may explain the low prices. There is however a simple cheap quick fix in terms of a metal plate that takes care of the problem, that I show in this video:
https://www.youtube.com/watch?v=jgSWlNUrlMM