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Marshall JMP-1 Tube MIDI Guitar Preamp

Sound Quality

Very nice clean and distorted sounds, BUT: the speaker emulation output really sucks. They should have used a normal mono-output, instead they made it stereo which gives you an ugly sweeping sound, like a cheap chorus. Especially when you play high single notes. Bad, bad, bad.


I dropped it twice from a table: no problem, everything still works fine.

General Comments

I play guitar for 20 years now and because I once had a very nice 2-channel Mashall tube amp I bought this JMP-1 preamp. Like I said before, the features are quite impressive but the cheap stereo-chorus in the speaker emulation really sucks. You can't use this for serious recording.

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