JMP Pro Valve Guitar Amplifier
JMP Pro Valve Guitar Amplifier
JMP Pro Valve Guitar Amplifier
JMP Pro Valve Guitar Amplifier
JMP Pro Valve Guitar Amplifier
JMP Pro Valve Guitar Amplifier
JMP Pro Valve Guitar Amplifier

JMP Pro Valve Guitar Amplifier

Release version 1.0.2
Regular price$137.00

“Four voiced channels of pure tone”


Nembrini Audio JMP Pro Guitar Amplifier plugin is based on a Marshall JMP1* preamplifier.

JMP Pro Valve Amplifier drives pure tone into each of its four uniquely voiced channels OD1, OD2, Clean1 and Clean2


Powered by four EL34 virtual tubes with presence, volume and power switch in class AB push-pull configuration.


FILTER make the delay Lo-Fi and OFFSET create a time offset in left/right delay sections


select Chorus or Tremolo modulation


Hall reverb algorithm


Low and High cut filters PRE and POST amplifier


tuned for guitar and bass


keep your dynamics in check, whether just thickening the sound or keeping levels consistent.


With Nembrini Audio JMP Pro Valve Guitar Amplifier is possible to choose between six different guitar cabinets, four microphone emulations with on/off axis position switch, continuous position and distance knobs. 

A complete Mixer section with SolosMutesPans and Faders allows you to blend together the two microphones with the ambience.


Impulse Loader lets you load up to three third-party impulse responses that you can even blend together using volume, pan, phase, solo and mute controls.

A useful browser window has been added so you can easily search through all your third-party IR files.  


Cabinets section and Impulses Loader bypassed.


Legal Disclaimer:

JMP1 is a registered trademark of Marshall Amplification PLC. Nembrini Audio JMP Pro was developed by Nembrini Audio SRL based on its own modelling techniques. Marshall Amplification PLC has not endorsed nor sponsored the Nembrini Audio JMP Pro in any manner, nor licensed any intellectual property for use in this product.


FREE iLok License Manager and iLok account needed.


Plugin Formats

A VST2, VST3, AAX or AudioUnits compatible host


An Intel compatible or Apple Silicon CPU 1GB RAM, Mac OS 10.9 or newer, Windows 7 or newer, 64-bit DAW

Customer Reviews

Based on 6 reviews
Milan Polak
Great rendition

Such a great plugin, a true workhorse!

The Best out there

Didn't give it a 5 star because there is room for improvement.
I would love to see them add a more detailed power amp section. For ex: a lot of guys would use these with the Marshall EL34 dual mono block power amps. They had a switch for "Vintage" and "Modern" power amp voicings plus a Resonance switch. Those features added tons more available tones. And, not to forget placing a BBE Sonic Maximizer in between the preamp and power amp was also essential for those killer metal tones. Set both the BBE knobs to about 5.5 on the dial and it made this preamp come to life. So, add a "MAX" button that engages a BBE between the pre and power amp. Oh, and like another reviewer mentioned: A T75 loaded 4x12 is essential for this amp.
All that said, it is still the best version available.

Some decades of great British tones in a single (pre)amp plugin!

Excellent simulation of the real device! And a lot more!

Beautifully sounding clean (to crunch) channels (perfect for eg. these typical Hendrix clean tones), very flexible adjustable overdrive to high-gain channels, excellent dynamic reaction to attack, great harmonics reproduction and a lot of classic British tones.

The additional featuresare an advantage. One complaint from my side: As the power amp section anyway is an addition, I think, it would not have been too complicated to also have implemented a Resonance control into it too.

Useful I find the separate Pre and Post Cleaner sections, as they alter the sound in a different way.

I also found it positive that the power amp is deactivatable, so you can use the preamp alone or combine it with another external power amp.

My second complaint concerns the built-in Marshall 4x12 Greenbacks cabinet. Does not sound very authentically to me, to thin an shrill, if compared with my other Greenback 412 IR's.

But you can anyway alternatively load and mix your favorite IR‘s or deactivate the whole cabinet section.

If you eg. use the Nembrini IR Loader, it also offers an optional power amp section and an - even more precisely than a Resonance control adjustable - Bass Enhancer, so with this additional plugin I easily get my two complaints solved.

Apart from my few complaints most probably the best choice, if you look for an authentically sounding JMP-1 simulation plugin, with all the additional features even more.

david m
great sounds

Another awesome amp from Nembrini. So many great 80's hard rock/metal tones I can get with this that have a distinct voice and character from the other Marshall amps. Was an instant buy 10 min after trying.

François t.
what a great combination of classic gear

the emulation is basically spotless, so now we can focus on how lucky we are now to have access to a legacy, hard to get, combination of gear who was used on so much classic records and live performance (iron maiden is one of them)

the includer power amp is a proper british inspired one, with (virtual) el34 in it and it really adds to the tone

the jfx-1 section add tons of usefull effects whi are any presets you make.

the cab section is almost perfection, all its missing is a t75 based cabs but heh, just load any IR based on them and you're set.

excellent product!

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