Skip to main content Skip to footer

Marshall JMP-1 Tube MIDI Guitar Preamp  

Product #180410

45 day price guarantee, 45 day return policy, 100% secure shopping


Item Note:

This product has been discontinued but may be available as a Open Box item.

Similar Items

See All Marshall Guitar Preamps

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

The Ultimate MIDI Tube Preamp. Designed by a team of guitarists who think exactly as you do, this great sounding, 1 rack space, easy to use and program four channel preamp offers instant recall of your 100 favorite settings. The Marshall JMP-1's valve driven heart (2x ECC83) drives pure tone into each of its four uniquely voiced channels - Clean 1, Clean 2, OD1 and OD2.


  • Four channels: two clean, two overdriven
  • MIDI in, out, and thru
  • Mapping facility
  • Programmable stereo effects loop
  • Speaker-Emulated and standard outs
review resources


by PowerReviews

(based on 5 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 5 customers

Displaying reviews 1-5

Back to top


best rack unit ive used


from scunthorpe

we used this amp at outhouse studios when we recorded our 7 track ep. it sounds brilliant. listen to it at

(35 of 65 customers found this review helpful)


Excellent . A definite keeper


from UK

I have tried a few amps and rack devices, and this is staying.

(12 of 26 customers found this review helpful)


Heavy metal


from Glasgow, Scotland, Uk

I picked up the JMP-1 and coupled it with the 50/50 power amp in my rack. This beast rocks. Its heavy, defined and the tone is ace. You can chain up your effects to tweak the sound and bass boost is a great feature. This is the setup for the metal/hardcore guitarist.

(41 of 56 customers found this review helpful)


Sooooo awesome!!!!!!!!!


from Salem, OR USA

This is all you'll ever need! Personally, I bought this to sound just like the death metal band, Slipknot. Mick Thompson uses this so I bought it. You can change to so many different types of sounds. I can't even find the right word for this type of object! All I can say is that it is worth the money! Just try it!

(80 of 146 customers found this review helpful)


Fantastic for recording and live


from Honolulu, Hawaii

I'll never need any other preamp OR amp for my guitar . . . period!!! With the JMP1 and a multiFX unit, you'll die of old age before running out of new sounds. From clean to natural distortion to screaming metal, I've found the quintissential perfect way of getting awesome sound(s) from my guitar. Way to go Marshall!!!

Displaying reviews 1-5

Back to top