"Your live rigs have changed quite a bit since the late ’90s. Ken, you used to rely on a Marshall JMP-1 preamp and VHT 2150 stereo power amp into a Marshall 4x12, while Greg was using an Ampeg SVT II head with a matching 2,000-watt 8x10 loaded with David Eden speakers. Now you’ve both become big proponents of Fractal Audio Axe-Fx II modeling units running to the monitors and house systems," reads this article.

In this concert of 1994 Geordie is using a Marshall JMP-1. The preamp can be seen right at 4:34.

"I’m still using the Diezel VH4’s and Marshall JMP1’s which are modded by Trace [Davis] at Voodoo Amps…" says Barry Stock, in this interview.

Jerry Horton of Papa Roach, states, "I use a Marshall JMP-1…", in an interview with Guitar Player.

“The whole thing started with the guitar riff,” Chris explains, “a big heavy metal-sounding thing. We basically got a click going, then we recorded the riff. I like tube gear, so I use a Mesa/Boogie TriAxis for the big sounds, and also a Marshall JMP-1 [both rack modules]. They’re the best sounding and most natural recording boxes I’ve found for guitar. I use a Line 6 Pod too, but more for the clean stuff.” For this track, the guitar was recorded through the TriAxis into a Neve mic pre, into a Yamaha 02R, and onto the Apogee Rosetta AD en route to Pro Tools. “I tend to use the Neve channel for guitars,” says Chris, “the APIs for drums, and the Summit TD-100s and GMLs for synths.”

"I use a POD direct, going through a spring reverb for the clean sound - and a Marshall JMP1 direct for the dirty. That's it - totally bare-bones. I know the guitar is a pretty visual instrument and all, but literally %95 of what I do in the band has to do with production, programming and keyboard arranging - there's very little time to fuck around with the guitar.

This video, which was taken at a talk show in September 11th of 2016, shows three guitarists performing selections of their own compositions before doing an interview, followed by a jam session.

Syu is shown to use a rackmount Marshall JMP-1 to emulate the high-gain tones for his solo performance. This can be seen at the beginning of the video, exactly at 0:03.

In this post andy shows off his jmp 1 preamp. he runs this through his mesa sterio 250 power amp

This article lists Frank’s gear.

In the Warped Reality interview, Zim Zum discusses his use of the Marshall JMP-1 Tube MIDI Guitar Preamp along with MIDI foot controllers.

Two Marshall JMP-1 Tube MIDI Guitar Preamps (ones a spare) exist in Mike's setup.

In the 2007 article "Age of Metal" by Paul Southwell for Stroppy Baby Kai Hansen confirms his use of the Marshall JMP-1 Tube MIDI Guitar Preamp in conjunction with a Marshall power amp, stating, "I’ve played with JMP-1 [rack mounted pre-amp] with a Marshall power amp for years now which is pretty reliable."