
Marshall Studio JTM Series ST20C 1x12 20W Guitar Combo Amplifier with Power Reduction
The first Marshall JTM amplifier created an iconic sound that defined generations of rock music. The all-new Marshall Studio JTM Series is a tribute to that legendary '60s tone that made Marshall a household name, in a more compact and modern format. Capable of power reduction from 20W down to 5W at the flick of a switch, the ST20H's era-defining sound steals the show, whether you're playing at home, or gracing the stage.
An Unmistakable Sound
Marshall's iconic sound is recognised and adored all across the globe, and the ST20C painstakingly replicates those legendary tones that defined the rock'n'roll revolution. From the legendary fat, smooth tone, to it's blended voices that combine clean and crunch, the ST20H delivers the legendary sound that made Marshall a household name.
Small but Mighty
Not only does the ST20C boast the power of a classic Marshall amp in a modern and compact design, the ST20H also includes refinements for today's players, like a DI output and FX loop.
Low-Wattage Vintage Sound
The ST20C is perfect for finding that definitive vintage tone, thanks to the integrated Celestion Creamback G12M-65 speaker. The ST20C also allows you to instantly switch between 20W and 5W output - without sacrificing your precious tone - thanks to the integrated power reduction technology.
UK-Made and All-Tube
Hand-built in the same UK factory responsible for building Marshall amplifiers since the late '60s, the ST20C features period-accurate aesthetics - from the distinct metal "coffin" logo, to the gold piping and beading - the ST20C is a stunning tribute to the '60s.
Specifications-
Electronics
- Channels: 1 (with 2 Voicings)
- Output Wattage: 20W (Power Reduction Option to 5W)
- Outputs: 5x ¼" Speaker Outputs (16Ω/8Ω/4Ω), 1x DI Output
- Inputs: 4x ¼" Instrument Inputs (High/Low Sensitivity)
- Controls: Treble, Middle, Bass, Presence
-
Tubes
- Preamp Tubes: 2x ECC83, 1x ECC83 (Phase Splitter)
- Power Tubes: 2x 5881
-
Speaker
- Configuration: 1x 12"
- Power Handling: 65W
- Speaker: Celestion G12M-65 Creamback
- Impedance: 16Ω
-
Accessories
- Detachable Power Cable Included
-
Dimensions
- 500mm (W) x 460mm (H) x 265mm (D)
- 17.8kg
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The first Marshall JTM amplifier created an iconic sound that defined generations of rock music. The all-new Marshall Studio JTM Series is a tribute to that legendary '60s tone that made Marshall a household name, in a more compact and modern format. Capable of power reduction from 20W down to 5W at the flick of a switch, the ST20H's era-defining sound steals the show, whether you're playing at home, or gracing the stage.
An Unmistakable Sound
Marshall's iconic sound is recognised and adored all across the globe, and the ST20C painstakingly replicates those legendary tones that defined the rock'n'roll revolution. From the legendary fat, smooth tone, to it's blended voices that combine clean and crunch, the ST20H delivers the legendary sound that made Marshall a household name.
Small but Mighty
Not only does the ST20C boast the power of a classic Marshall amp in a modern and compact design, the ST20H also includes refinements for today's players, like a DI output and FX loop.
Low-Wattage Vintage Sound
The ST20C is perfect for finding that definitive vintage tone, thanks to the integrated Celestion Creamback G12M-65 speaker. The ST20C also allows you to instantly switch between 20W and 5W output - without sacrificing your precious tone - thanks to the integrated power reduction technology.
UK-Made and All-Tube
Hand-built in the same UK factory responsible for building Marshall amplifiers since the late '60s, the ST20C features period-accurate aesthetics - from the distinct metal "coffin" logo, to the gold piping and beading - the ST20C is a stunning tribute to the '60s.
Specifications-
Electronics
- Channels: 1 (with 2 Voicings)
- Output Wattage: 20W (Power Reduction Option to 5W)
- Outputs: 5x ¼" Speaker Outputs (16Ω/8Ω/4Ω), 1x DI Output
- Inputs: 4x ¼" Instrument Inputs (High/Low Sensitivity)
- Controls: Treble, Middle, Bass, Presence
-
Tubes
- Preamp Tubes: 2x ECC83, 1x ECC83 (Phase Splitter)
- Power Tubes: 2x 5881
-
Speaker
- Configuration: 1x 12"
- Power Handling: 65W
- Speaker: Celestion G12M-65 Creamback
- Impedance: 16Ω
-
Accessories
- Detachable Power Cable Included
-
Dimensions
- 500mm (W) x 460mm (H) x 265mm (D)
- 17.8kg






















