1970 Marshall – JMP 1992 Super Bass – ID 5457

For sale is a Marshall JMP 1992 Super Bass from 1970, a real early JMP from the transition period to the metal panel era .
The amplifier was found in an attic and was then professionally restored in our workshop. workshop completely refurbished in our workshop.
The mains transformer was also replaced in 2025.

The Super Bass is known for its fat, warm basic tone and enormous dynamics. The best examples of this are the early Van Halen albums.

Manufacturer: Marshall
✅ Model: JMP 1992 Super Bass
✅ Year of construction: 1970
✅ Type: Full tube
✅ Power: 100 watts
Channels: 2 (normal / bass)
✅ Controls: Presence, Bass, Middle, Treble, Volume I, Volume II
✅ Power amplifier: 4x EL34
Impedances: 4 / 8 / 16 Ohm
Mains transformer: renewed
✅ Condition: technically overhauled, visually with age-related patina
✅ Origin: England