Marshall ST20C Studio JTM 20W Valve Combo
ST20C
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- Marshall
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1x12” top-loaded combo.
20W with power reduction to 5W.
Celestion Creamback G12M-65 speaker.
SPECIFICATION
The amp that started it all is back. The JTM is a welcome addition to the Studio range, offering players authentic, smooth, and valve-driven break-up at lower volumes – perfect for home or studio use. Creating a sound that defined a generation, the JTM delivers the legendary loud blend of crunch and clean recognized the world over.
Power
20W or 5W
Valves
2 x ECC83, 1 x ECC83
(phase splitter) and 2 x 5881
Channels
Single channel with four
separate inputs
High treble and normal
loudness controls
Equalization
Treble, middle, bass and presence
Speaker Outputs
5 x 1/4” jack sockets
(16Ω load / 8Ω load / 4Ω
load)
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
