Well I know that at the moment some of the guitarists, if not all of them, from Iron Maiden use a JMP-1 and 9200, so they are obviously good amps. I have heard from two friends of mine. One has a JMP-1 with some other Marshall power amp (can't remember what), and he said that it's great. The other has a Marshall 1959SLP head and a Marshall cab and he also says that that is awesome. So I was wondering if I could use the JMP-1 and 1959SLP (or some other Marshall head) together or if a power amp was needed.
I play mostly heavy metal and I have a Fender Strat, with SD hot rails in neck/bridge if that makes a difference.