Marshall JMP-1 Tube MIDI Guitar Preamp
By
Tom Berger, in Guitar Preamps
Overall Rating
Sound Quality
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Reliability/Durability
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General Comments
I've used various amps over some 16 years now, and I must honestly say that the JMP-1 exeeds all expectations. I run my JMP-1 with a Rocktron Intellifex DSP. This combination is just mind blowing. Beautiful, noiseless tone. However, if any Marshall engineers read this, here are some suggestions: 1) Ventilation of the case in my opinion is not adequate, especially since it runs 2 valves inside. There are small ventilation slots on the top and bottom of the case. These are in a bad position because rising heat will only heat up the rack component above it, so I recommended that the JMP-1 is placed at the top position of your rack. The vetilation holes under the unit seem silly because the circuit board in the unit will inhibit proper flow through ventilation. It would have been nice to see one of those small computer fans installed somewhere in the unit. I would have been happy to pay an extra $20 (parts and labour) for this inclusion as standard. 2) It would have been nice for the patch display to read an name for the patch, as well as a number. With 100 presets, it's too hard to remember what patch 58 is. I'm sure guitarists don't want to have to carry a sound setting chart with descriptions around with them. I know that's extra cost to the manufacturer, but it would be a nice touch. Overall, I can't fault the JMP-1. I am often critical about most things, but in this case, my average vote of 9 for this product is very well deserved. In conjunction with the Rocktron Intellifex DSP, my search for the ultimate tone is over. Thank you Mr. Marshall.