The Marshall JMP1 50th Anniversary amplifier uses 2 x ECC83 (12AX7) preamp valves and 2 ECC81 power valves.
We always recommend JJ valves for the Marshall JMP1 50th Anniversary amplifier. This is because they give amazing tone and power at a very competitive price.
Bring back the power and sparkle to your guitar amplifier. Treat yourself to a new set of valves.
If you have any questions about replacing the tubes/valves for Marshall JMP1 50th Anniversary please do not hesitate to get in touch. We have over 30 years experience and will be happy to advise.
About the Marshall JMP1 50th Anniversary amp:
The Marshall JMP1 50th Anniversary is a one watt, one channel with three simple controls. It pays homage to the classic Marshall sound and look of the 1970s. Although the Marshall JMP1 50th Anniversary only has Bass and Treble for tone sculpting, each offers wide flexibility so it’s surprising how much this amp has to offer. To increase gain, the Volume control increases both output and distortion. Pushing the Volume drives the valves harder resulting in more of that classic Marshall grit.
The Marshall JMP1 50th Anniversary also features a neighbour friendly power switch taking the 1 watt power output down to just 0.1 watts. Making it even easier to achieve saturated gain at lower levels is the Gain Boost switch on the rear panel. This adds another valve stage to the signal path for even more ‘70s gain.
So, if you’re looking for great sounding valves for Marshall JMP1 50th Anniversary amplifier you’ve certainly come to the right place.