Brit J1 Preamp is the TH-U expansion library created by Choptones that recreates the sound of a Marshall JMP-1 Preamp*.

This library contains 154 rigs:

• 26 rigs were created from the 26 factory presets found in the original preamplifier, by connecting the preamp to a JCM800 power amp.
• 128 rigs were created from setups with multiple cabinets, microphones and overdrive pedals in order to provide a wide range of tones. A Mesa 2:90 power amp has also been used.

The Brit J1 Preamp rigs have been captured using the following gear*:

Cabinets:

• Engl 4×12 loaded with Celestion V60
• EVH 5150III 4×12 loaded with Celestion G12EVH
• Marshall 4×12 loaded with Celestion G12M, G12T75
• Marshall 4×12 loaded with Scumback M75
• Mesa Boogie 4×12 loaded with Celestion V30, V-Type
• Soldano 4×12 loaded with Eminence Legend V12
• Custom Audio 4×12 loaded with Celestion Creamback 75
• Hughes & Kettner 4×12 loaded with Celestion G12M
• Marshall 2×12 loaded with Celestion V30, G12M

Mics:

• Shure SM57, SM7
• Royer R121
• Sennheiser MD421, e609
• Neumann U87
• Audix i5
• Heil PR30
• Beyerdynamic M160, M201
• AKG C414

Boosted with:

• Mesa Flux Drive
• Mesa Grid Slammer
• MXR Berzerker OD
• MXR Modified OD
• Ibanez TS9

System Requirements

• Overloud TH-U Premium, TH-U Rock, TH-U Metal, TH-U Funk & RnB, TH-U Slate Edition, TH-U SuperCabinet, TH-U Mobile, or TH-U ’60s Pack
• MacOS 10.7 Lion and above
• Windows Vista and above
• Intel Core i3 CPU or better
• 4GB RAM or more
• 1280×800 screen resolution or higher