Re: Mesa F-30 vs. Mesa F-50 vs. Mesa Nomad 55 combo
Tough question. The F-30 or F-50 are probably the heaviest/gainiest, and have phenominal clean channels. However, their gain sound is pretty much the same whatever you do to the EQ. The "Contour" switch does a lot (basically, the Mark-IV V-shape mid scoop), but everything else is subtle and doesn't fundamentally change the "sound" of the distortion. Good news is, it's a great sounding distortion to begin with.
The Nomad meanwhile, is easily the most versatile of this group, with three distinct channels with three distinct-sounding "modes" per channel. The cleans are nice if not on par with the F's, the second channel will take you from heavy Marshall/Mark style crunch to thick smooth Mark-I like leads, and the third channel will do either a searing Mark-IV like lead or a heavy crunch vaguely reminiscent of the Rectifiers - the same sort of low end clarity, but with more midrange and less rip-your-face-off presence. It's one of the more versatile Mesas I've ever played.
Never played a DC series myself, but a lot of people like them, I hear - can anyone chime in?