Marshall Studio JTM ST20C Combo
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Marshall
Studio JTM ST20C Combo
Product Info
Article Number:
550660
Brand:
Marshall
Model:
Studio JTM ST20C Combo
Category:
Tube Guitar Combos
Price:
$1,186.90
* Prices may vary. Check retailer for current pricing and availability.
This Marshall ST20C nails that vintage JTM45 vibe – think early Stones, blues rock, and classic rock tones. It's a fantastic platform for building a foundational sound, and the power reduction is a huge bonus for home practice. If you're chasing that warm, slightly gritty Marshall tone without needing extreme distortion, this is a seriously compelling option.
Product Description
- Marshall Studio JTM ST20C Combo
- All Tube Combo Amplifier for Electric Guitar
- Based on the classic vintage look
- Sound from vintage to crunch
- 20 Watts with power reduction to 5 Watts
- Speaker: 1x 12" Celestion G12M-65 Creamback
- Preamp tubes: 3 x ECC83
- Power tubes 2x 5881
- Controls for Presence
- Bass
- Middle
- Treble
- Loudness 1
- Loudness 2
- FX-loop
- DI out
- Impedance selector switch: 1x 16 Ohm
- 1x 8 Ohm (2x 16 Ohm)
- 1x 4 Ohm (2x 8 Ohm)
PROS
- • Authentic JTM45 tone, capturing that classic British crunch.
- • Creamback speaker delivers a warm, articulate, and responsive sound.
- • Versatile power reduction allows for bedroom-friendly volume or stage presence.
- • Well-built chassis and quality components suggest long-term reliability.
CONS
- • Limited gain range; not ideal for modern high-gain genres.
- • Relatively heavy for a 20-watt combo, transport can be a challenge.
- • FX loop is basic, lacking advanced routing options.
Product Video
Key Features
Power (Watts)
20W (switchable to 5W)
Tubes
3 x ECC83 (preamp), 2 x 5881 (power)
Speaker
1x 12" Celestion G12M-65 Creamback
Channels
2 (clean/crunch – achieved through gain interaction)
Effects
Basic FX loop
Weight
35 lbs
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Frequently Asked Questions
The clean channel has a slightly warmer, more 'used' character than a sterile modern clean; it’s not overly bright but has a pleasing vintage warmth.
At 5 watts, it’s perfect for intimate settings and recording; you'll still get that classic Marshall crunch but at a manageable volume – great for pedal experimentation.
The DI output is a decent option for basic recording or live sound reinforcement, though a dedicated preamp might offer more flexibility and tonal shaping.
