Product Description
Vintage 1967 Marshall Bluesbreaker 4×10 1961 Plexi JMP Tremolo 50w
Vintage 1967 Marshall Bluesbreaker 4×10 1961 Plexi JMP Tremolo 50w
Description
1967 Marshall ‘Bluesbreaker’ JMP Tremolo 50w 4×10 Amplifier, the exact same era used by Eric Clapton himself.
This particular model is the extremely rare crossover period (1966-1967), where Marshall changed the external label from JTM to JMP – still retaining that classic JTM sound. The pinstripe baffle, mustard caps, silver & gold stickered speakers, amongst other things, date this amplifier to 1967.
This amplifier is possibly one of the most famous sounding amplifiers – well known for launching British blues-rock music in the 1960s – placing it in the top ten most valuable amplifiers in the world.
Product Details
Serial: 10032
Watts: 50 watts
Valves: 2x EL34s + 4x ECC83’s + 1x GZ34
Transformers: Original w/ Codes 784-128 & 1202-118
Cosmetic Inspection
There are two splits to the front baffle, one of which has been sewn up professionally, as pictured. There are a few scrapes and bumps to the tolex, as pictured, most notably the left hand side (painted matt black to hide the wood) and the underneath (wood showing in places). Three small holes to the bottom backplate where external speaker inputs have been fitted (now removed). Part of the chassis back plexi panel has come off, possibly when the previous owner fitted a kettle lead in place of the original bulgin plug.
We have been as honest as possible, exaggerating the things to report. The amplifier looks the part and is in no way a mess.
Originality
We believe all the parts that matter are original, as pictured.
Service History
We pride ourselves on our inspections and the professional service of each amplifier, making this ready to plug in and play anywhere within the UK. In the recent service, the following was done:
– Test valves on Orange VT1000 (all serviceable)
– Clean controls and sockets
– Check bias of output valves
– Safety inspection
– Soak test into dummy load, using 1kHz sinewave at 120mV
– Re-solder speaker connection
– Tidy up cabinet and paint any areas of bare wood where tolex is missing, glue down any rips in tolex
Summary
One of the best quality amplifiers you’ll find. These exceed the quality of most new amplifiers and are always on the increase in regards to collectability.
Come along and have a play!




