(B-Stock) Marshall ST20C Studio JTM 1 x 12-inch 20-/5-watt Tube Combo Amplifier
(B-Stock) Marshall - ST20C Studio JTM, 20/5W, 2-ch 1x12" Tube Guitar Combo Amplifier with Celestion G12M-65 Creamback
Email me when the availability or price changes
(B-Stock)
ST20C Studio JTM - 20-/5-watt Tube Combo Amplifier
Please note: This item is B-Grade. Packaging may be damaged or missing and there may be cosmetic imperfections and slight signs of use.
Tube Guitar Combo Amplifier with Celestion G12M-65 CreambackThe unrivalled number one is here, just smaller. Reproducing the legendary, warm and smooth tones of the original Marshall JTM, the Studio JTM packs a punch. Swap between 20W and 5W at the flick of a switch and let the era-defining sound of the JTM steal the show, whether it’s playing at home, or on stage. Make sure to pair the ST20H with one of our Studio cabinets for a small but perfectly formed Marshall rig.
2 x 5881Power Amp Valves
2 x ECC83, 1 x ECC83Preamp Valves
1 with 2 VoicingsChannels
at a glance
• 2-channel, 20-watt tube combo amplifier
• Dual 5881 power tubes, 2 ECC83 preamp tubes
• Treble, Middle, Bass, and Presence controls
• Speaker-emulated DI out
• Handbuilt in the UK
Key Features
AN UNMISTAKABLE SOUNDThis reissue painstakingly reproduces the legendary, warm, and smooth tone of the original Marshall JTM that inspired generations of musicians. The ST20C delivers the loud blend of crunch and clean recognised the world over.
SMALL BUT MIGHTYPacked with the same vintage tones you know and love, just in a smaller package, the ST20C has the power of a classic Marshall amp in a compact design.
LOW-WATTAGE VINTAGE SOUNDIdeal for creating that definitive vintage tone, the ST20C is equipped with a Celestion Creamback G12M-65 speaker. Switch between 20W and 5W at the flick of a switch to allow playing at a lower wattage without compromising on tone.
HANDMADE IN THE UKBuilt in the same UK factory just like the original, the ST20C is adorned with period-correct aesthetics - from the same distinctive, solid metal, red enamel poured “coffin” logo, to its fawn fret complete with gold piping and beading, the ST20C beautifully nods to the 60s.
Studio JTM | Official Demo | Marshall
The Tech Spec
| Features | Specification | Model | ST20C |
|---|---|
| Technology | Valve |
| Channels | 1 with 2 voicings |
| Output wattage | 20W (with power reduction option to 5W) |
| Outputs | DI output and 5 x 1/4” speaker outputs (16Ω load / 8Ω load / 4Ω load) |
| Inputs | 4 x 1/4" jack instrument inputs (high/low sensitivity) |
| Controls | Treble, Middle, Bass and Presence |
| Effects loop | Yes, send/return |
| Preamp valves | 2 x ECC83, 1 x ECC83 (phase splitter) |
| Power amp valves | 2 x 5881 |
| Speaker configuration | 1x12” |
