Marshall
JMP - Super Bass 100
1971
Serial No. SB/A 4584C
We’re pleased to offer this JMP Super Bass 1992 head from 1971, built during the desirable hand-wired tag-board era.
Chassis: Original output transformer, original choke, replacement TAD laydown power transformer, original mustard caps. The original Bulgin power supply is still present and the head will come with a power cable.
It’s just had a full check-over by Dave at Prestige Amp Servicing — an ex-Marshall factory technician — with several service parts replaced, listed below.
- V2 & V3 Preamps replaced ECC83
- V1 & Phase Inverter supply resistors x 4
- PAT Tested
- Bias Circuit smoothing caps 10uf, 100v
- 4 x new Marshall Branded EL34's
Pre Amp Valves: PM & RUBY ECC83
Power Valves: Marshall EL34
Cosmetic: Original head shell and hardware.
The output (ohms) and mains voltage selectors have been updated to the more modern RS style.
This listing is for the head but we also have a selection of Marshall cabs available separately.
Mains voltage selector - 110v, 120v & 240v - so can be used worldwide.
Worldwide Shipping Available
All of our heads are shipped in custom made Overdrive boxes with extra protection inside. We usually use UPS for international shipments. We have lots of experience shipping Marshall items worldwide and ship to North America and Europe on a weekly basis.
We are proud to be an Authorised Marshall Retailer, with shipping available across the UK and all of Europe for new gear and worldwide shipping for our used items. We also have a dedicated showroom where you can experience and test the amps in person.
This item is sold As-Described
This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.
| Listed | 2 months ago |
|---|---|
| Condition | Very Good (Used) Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more |
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Product safety information may be available here.
















