Marshall Studio Classic SC20C 20W 1x10" Tube Guitar Combo Amp
The Marshall Studio Classic SC20C is a 20 W tube guitar combo, made in the UK, that delivers the JCM800 sound in a 14.55 kg cabinet with a 10 in. speaker, and switches to 5 W for sensible volumes.
What sets it apart
- JCM800-inspired tone, made in the UK
- 20 W or 5 W at the flick of a switch
- Two EL34s, three ECC83s
- Preamp volume and master volume
- Two inputs: high and low sensitivity
- Series effects loop and DI output
The JCM800 as a combo
The JCM800 arrived in the 80s and left its mark on rock with its forthright overdrive, driven by the master volume. The SC20C keeps the layout: one channel, a preamp volume for gain, a master for room volume.
Marshall describes a sound that goes from clean to barking overdrive, all the way to soaring solos.
All-in-one, 20 or 5 W
The combo puts the amp and a 10 in. speaker (Celestion, 16 Ω, 50 W) into 510 × 460 × 255 mm. A switch goes from 20 W to 5 W for home or the studio.
Its five speaker outputs (16, 8 and 4 Ω) let you add a cab, such as the SC112.
Specifications
| Power | 20 W, reducible to 5 W |
|---|---|
| Channel | Single |
| Preamp valves | 2 × ECC83, 1 × ECC83 (phase splitter) |
| Power valves | 2 × EL34 |
| Speaker | Celestion 10 in., 16 Ω, 50 W |
| Inputs | 2 × 1/4 in. jacks, high and low sensitivity |
| Controls | Preamp volume, master, treble, middle, bass, presence |
| Outputs | 5 × 1/4 in. speaker jacks (16, 8, 4 Ω) and DI output |
| Effects loop | Series, switchable |
| Dimensions | 510 × 460 × 255 mm |
| Weight | 14.55 kg |
| Made in | United Kingdom |
What it's for
- Rock and hard rock at home, at 5 W
- Studio: the JCM800 sound on a mic
- Small venues with an SC112 extension cab
- Gain platform for a boost pedal
Compared with other manufacturers
Other tube combos of about 15 to 30 W are made by these manufacturers:
| Maker | Model | Power | Power valves | Speaker |
|---|---|---|---|---|
| Marshall | Studio Classic SC20C | 20 or 5 W | 2 × EL34 | 10 in. Celestion |
| Fender | Blues Junior IV | 15 W | 2 × EL84 | 12 in. Celestion A-Type |
| Mesa/Boogie | Fillmore 25 1x12 | 18 W clean, 23 W max | 2 × 6V6 | Celestion Custom 90 |
| Peavey | Classic 30 | 30 W | 4 × EL84 | 12 in. Celestion Midnight 60 |
| Orange | Rocker 15 combo | 15 W, or 7, 1, 0.5 W | 2 × EL84 | 10 in. Voice of the World |
Frequently asked questions
- Is the SC20C a real JCM800?
- Marshall presents it as the same legendary tone as the original JCM800, in a smaller 20 W format. It's a scaled-down version, made in the UK.
- Is the 5 W mode quiet enough for an apartment?
- It lowers the power, but a 5 W valve amp is still loud. The master volume helps keep the overdrive at room level.
- Do I need a boost pedal in front of the SC20C?
- It's not required. Many players add a boost or an overdrive-style pedal to tighten the low end and push the gain.
- Is there reverb?
- No. The series effects loop takes a reverb pedal.
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