Sound Pure's Take
Condition: Used, Excellent
Own a piece of tone history with the Marshall JTM ST20C — a boutique-style amp that delivers legendary warmth and punch in a compact design. Powered by 2 x ECC83 preamp valves, a phase-splitting ECC83, and 2 x 5881 tubes, this 20W/5W beast sings with rich harmonics and vintage character. The single channel with 4 inputs and full EQ control lets you sculpt your sound, while the 12" Celestion G12M-65 Creamback speaker adds creamy mids and articulate highs. Rare, cool, and built for players who demand authentic Marshall mojo — this amp isn’t just gear, it’s an investment in timeless tone.
Power: 20W/5W
Valves: 2 x ECC83, 1 x ECC83 (phase splitter), 2 x 5881
Channels: 1
Inputs: 4
EQ: Treble, middle, bass and presence
Speaker: 1 x 12" Celestion G12M-65 Creamback
Dimensions (WxHxH): 19.7" x 18.11" x 10.43"
Weight: 39 lb.
Warranty
This item is sold without the Sound Pure 3-year warranty (used / B-stock / dealer-exempt). Coverage terms for items in this category live in Terms & Conditions, Section 27.
Returns
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Sound Pure Studios · Durham, NC
Come hear it in our control rooms.
Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.