Marshall JMP-1 Tube MIDI Guitar Preamp
By
geek_usa, in Guitar Preamps
Overall Rating
Sound Quality
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Reliability/Durability
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General Comments
If you can follow my instructions above, the JMP-1 more than likely will not disappoint you. I say this because I have played several amps and setups with numerous guitars and the only thing that comes close is Orange and they run at least $2k just for the head. Certain Strats will sound good through this (it really depends on how heavy it is and the phase of the pickups, weird I know) but the real shine is with humbuckers or over-wound single coils. Right now I'm using a Telecaster with a hot single coil bridge pickup and it gives me the crunch of a humbucker but the sparkle of a Tele. Les Pauls and SG's are good matches for this.
This amp has hundreds of possible settings if you look hard enough. The presence knob is a hidden gem that can completely shape the hollowness or the fullness of a tone, and the Bass Shift will get you instantly into metal territory if you are dialed in right. OD1 is a transparent, more JCM800 style distortion; while the OD2 adds another gain stage and gives off a nice furious fuzzy crunch.
All in all a good unit. The minor gripes I have about it are completely superseded by the excellence in tone.
God Bless, Jesus is Lord.