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  • Vintage 1978 Marshall JMP Super Bass 100w Half Stack Amplifier
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Vintage 1978 Marshall JMP Super Bass 100w Half Stack Amplifier


Out of stock


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Vintage 1978 Marshall JMP Super Bass 100w Half Stack Amplifier

Vintage 1978 Marshall JMP Super Bass 100w Half Stack Amplifier

One of the cleanest Super Bass’s we’ve ever seen, 100w of pure Marshall tone & in glorious stack form; complete with its 1978 slant cab! Included in this sale are the 2 vintage vinyl cases pictured!

Serial Number: 10252K & 1559 (Cab)

Valve Brands: Mullard – 4x Original El34s

Transformers: Drake

Voltage Selector: 110v, 220v, 240v Selector

This amplifier has been serviced to a playable & safe standard, by one of our leading amp techs. To find out more about what our service includes, please check out our terms and conditions before purchasing.


Overall excellent condition, with nothing significant to mention other than the expected minor wear and tear. Please have a close look at the high resolution photographs below, as these form part of our description.


Internally and externally original, including transformers, except for minor service component changes i.e. caps, resistors, etc. It’s awesome to have the original covers too!

At The Music Locker we will do all we can for you to get the instrument you want. You’re more than welcome to come and have a play on this, coupled with one of our vintage guitars!

Additional Information

Country of Manufacture









For more information on shipping prices, please visit our shipping page.

The Music Locker prides itself on offering vintage and collectable pre-owned instruments and equipment (the Products).

We take all reasonable steps to ensure the equipment has been inspected by a competent person in the UK to ensure it complies with UK safety standards. This may mean it does not comply with the current standards in the country in which it will be subsequently used. It is the purchasers’ responsibility to ensure it is inspected by a competent person knowledgeable with the relevant electrical safety standards within that country, prior to connecting to any live electrical circuit.

It is the philosophy of The Music Locker to keep all items as original as possible, only changing original components when absolutely necessary. This includes valves, capacitors, transformers, potentiometers, frets, etc. This gives the buyer the option of tailoring to their exact needs, and may mean that the item is not operating at optimum performance levels. Therefore, your personal preference may differ, depending on your circumstances (i.e. collector or musician), and you may decide to service the item in more depth upon receiving.

The Music Locker cannot accept responsibility for any costs of refurbishment to a standard different to the one advertised.