




Marshall ST20C 1x12 20w JTM Combo - Guitar Amp
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Convenience has also been put at the forefront of the Studio JTM’s design, with a smaller footprint and being more lightweight than its historical counterpart without compromising on sound quality, the amp is a breeze to transport and is suitable for playing in multiple environments.
Ideal for both home use or smaller stages, the Studio JTM boasts built-in power reduction technology, allowing players to switch between 20W and 5W settings, meaning guitarists can now achieve the defining sound of the JTM anywhere.
The Studio JTM features many of the same components that helped define the iconic JTM tone, from the ECC83 preamp values, 5881 power amp valves, ECC83 phase splitter and G12M-65 Creamback Celestion speakers, resulting in a unique blend of warm, growling and versatile sound that takes you right back to the renaissance of rock and roll.
ST20C |
|
Power |
20W with power reduction to 5W |
Valves |
2 x ECC83, 1 x ECC83 (phase splitter) and 2 x 5881 |
Channels |
Single channel with four separate inputsHigh treble and normal loudness controls |
Equalisation |
Treble, middle, bass and presence |
Speaker outputs |
5 x 1/4” jack sockets(16Ω load / 8Ω load / 4Ωload) |
Outputs |
DI output |
Speaker config |
1 x 12" |
Speaker model |
Celestion G12M-65 Creamback (16Ω, 65W) |
Unit weight |
17.8kg |
Unit width |
500mm |
Unit height |
460mm |
Unit depth |
265mm |
Pairs well with
Family run independent
Established 2014
12 Months Warranty & in store setups

Marshall ST20C 1x12 20w JTM Combo - Guitar Amp