Marshall's JMP Master Model 50W MKII Lead is a tube based guitar amplifier head. The studio that I work at owns one of these, and it almost always sees use with the Marshall 4 X 12 cabinet that we have as well. As the name clearly states, this amp head delivers 50 watts of power. It's got two 1/4" speaker outputs in the back and two 1/4" inputs in the front for your instrument.

UTILIZATION

Using the Marshall JMP Master Model 50W MKII Lead isn't difficult, especially if you feel comfortable with guitar amps in general. The front panel is pretty simple, with parameters for presence, bass, middle, treble, master, and for setting the preamp level. That's pretty much all you need to know in order to operate the Master Model 50W MKII Lead, so there's no need for a manual.

SOUNDS

The sound of the Marshall JMP Master Model 50W MKII Lead is pretty much everything you'd hope for in a Marshall amplifier. While the name would lead you to believe that this is only for playing lead guitar parts, it's certainly useful no matter what type of guitar parts you'd be playing. It has an incredibly thick sound that's capable of getting that super heavy distortion that you've heard before on so many different rock records. It's definitely suited best for lead guitar parts and solos were you'd want a singing lead part with body and crunch, but it's simply a great guitar head across the board...

OVERALL OPINION

You couldn't possibly go wrong with the Marshall JMP Master Model 50W MKII Lead if you're looking for that huge rock distortion guitar sound. There's enough room to play around that it's a versatile amp, but in general it sticks to what it does well. I don't know what year this amp was made, but it's definitely a vintage amp and has the sort of sound to match. This is truly a killer sounding amp head...