This picture from the book: back to the front, shows James hetfields rig during the ride the lightning era. It was a Marshall Jmp 2203 boosted with a tube screamer. The rig also features two tc electronic dual parametric equalizers and a Ibanez stereo box.

The 100 watt Marshall JMP was given to Ted Templeman by Steve Stevens during the NYC recording sessions for “Eat Em and Smile.” The amp was then modded to Steve’s liking by Lee Jackson, famous for performing sought after custom modifications to Marshall amplifiers for top artists in the 1980?s and 1990?s. The 100 watt plexi head features an extra gain stage, frequency adjust control, effects loop & master volume. The head has been well maintained in Los Angeles and features matching Drake transformers, KT88 quad-matched power tubes & hand-selected pre-amp tubes to Steve’s liking.

In this photo (supposedly taken in late 1991, on tour in Europe), Dirnt's Gibson G-3 appears to be plugged in Marshall JMP.

"Malakian’s main guitar for distorted tones was a 1962 Gibson SG through a 100-watt Marshall JMP100 amp and a single 4x12 cab. One channel of the Marshall is stock, but the second has been modified for extra gain. This very basic rig was recorded via an unusual room-miking technique." - Guitar World.

"This stock, mid-Seventies 100-watt Marshall JMP head was a mainstay in Zappa’s setup from 1974 on through the 1979-84 tours."

Johnny used two Marshall JMP 100s in 1990, according to Guitar Geek.

In his interview with Vintage Guitar Magazine, John Fogerty mentioned that after Creedence Clearwater Revival broke up in 1972, he replaced his old and worn-out Kustom Amps with the more modern Marshall JMP 2203 Master Lead and JMP 2104 Combos.

In this guitar player interview from 1979 Paul was asked, “What kind of amp are you using?”

“Marshall, a hundred-watt head. The people at Marshall have been really good to us for the most part. I think the days of equipment being given to you have passed. They don’t give us any stuff, but they service our equipment for us, and they keep everything in really good shape. Last year on tour I was using two stacks—two heads through either two bottoms or four bottoms, de-pending on the situation. For the biggest places I may have 10 or 15 hundred watt Marshalls with 20 Marshall speaker cabinets—four 12s in each.

“Are they stock?”

“Yes. They’re just really well kept. I’ve used the new Marshall heads, which have two inputs as opposed to four. I was using those on my new solo album. They sound very good.”

Fredrik Thordendal's studio setup includes the Marshall JMP 2203 Mk II Master Lead 100w amplifier, as shown in a photo shared by KLOTZ AIS on Facebook.

Peter Frampton uses a 100w JMP Marshall from the 1970s as his main amp. "It's got an extra tube in there for some extra overloading situation for some nice distortion there," he said at (1:35).

Joan Jett used Marshalls during her time with The Runaways and the beginning of her solo career as seen in the music video for I Love Rock ‘N Roll. At 2:08 you can see it’s a JMP because of the Plexi front plate and two rectangle toggle switches.

This Guitar Geek rig diagram shows that Aldrich uses a Marshal JMP amp.