Re: Best Amp Head for Under $1500
I wouldn't categorize the JCM 800 as having either great cleans or very high gain. I really like the Royal Atlantic and the Stiletto, but the amp that immediately came to mind when I read the OP was the Splawn. A friend of mine has a Quick-Rod, and it's killer.
There is also a guy in Seattle that is doing great amp things along these lines, Dave Kracke. Kracke Amps has some YouTube demos, and he's on Facebook. Really, really nice amps, and well built--lots of options.
I'm a Mesa guy, but these are two builders that I really like.
Bill