Marshall JMP-1 MIDI Tube Guitar PreAmp JMP1 Pre-Amp

Marshall JMP-1 MIDI Tube Guitar PreAmp JMP1 Pre-Amp

includes Marshall footswitch and AC cord

(sorry, no manual- need to download from )

Condition: Pictures are part of the description. Unit powers on, all functions work. This rack mount unit was slid in and out of a rack, so scratching on top and bottom are visible. Foot switch also shows scratches from use- see photo of front and side. If you want to replace tubes, eBay is a good place. Range from $29 to $49, depending on tube. Cannot give you life expectancy on tubes. 7 day no questions asked return policy.


A big-muscled tone-sweetener that lets you dial up a fat range of MIDI-compatible options.

By combining Marshall valve tone with guitar-friendly MIDI technology, the JMP-1 establishes itself as the leading edge in rack mounted preamps. 4 custom-voiced channels are provided: Clean 1, for warm full bodied chords; Clean 2, for the glassy edge of a JTM45 and a spectrum of bright tones; OD1, for smoldering power and the searing tones of modern metal; and OD2, for tight, focused tone and all the sustain you could ever want. The JMP-1 has MIDI in, out, and thru connections plus a mapping facility. Also features a programmable stereo effects loop and Speaker-Emulated outputs (in addition to standard outputs), including
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