

The original JCM800 2203 changed the face of modern amplifiers forever. Updated and enhanced, Marshall Studio Classic SC20H is here to do it all over again. Replicating the first amp that truly embodied the overdriven sound of heavy rock, the portable SC20H brings timeless sounds to the modern guitarist with the option to switch between 20W and 5W at the flick of a button.
- 20W with power reduction option to 5W
- 2 × ECC83 preamp valves
- 2 × EL34 power amp valves
- ECC83 phase splitter valve
- Effects loop
UK-made all-valve amplifier
This makes SC20H just like the original that kicked off the Marshall JCM800 2203 revolution and changed the face of modern amplifiers forever.
Power reduction
Change between 20W and 5W, letting you take control of your tone.
Portable
SC20H is compact, lightweight and easily transportable.
Authentic JCM800 2203 tone
SC20H has a master volume control and series effects loop so you can recreate that signature sound.

SKU | MAR-MSC20HU212 |
MPN | SC20C |
Vendor | Marshall |
Amp Format | Head |
Amp Type | Tube |
Included From Manufacturer |
Power cable Speaker cable |
Mpn | M-SC20H-U |
Wattage | 20 Watts |
Amplifier Application | Electric Guitar |
Effects Loop | Yes |
Equalization (EQ) |
BASS, MIDDLE, TREBLE knobs PRESENCE knob to adjust high frequencies of the power amp |
Audio Inputs |
1/4" high sensitivity input 1/4" low sensitivity input 1/4" effects loop return input |
Audio Outputs |
1/4" effects loop send output 1/4" 16Ω speaker output 2 × 1/4" 8Ω/16Ω speaker outputs 2 × 1/4" 4Ω/8Ω speaker outputs 1/4" DI output |
Power | 20W with power reduction option to 5W |
Product Weight | 20.7 lb |
Width | 20.1" |
Depth | 9.4" |
Height | 9.4" |
MARSHALL USA LIMITED NON-TRANSFERABLE WARRANTY
All Marshall amplifiers sold by authorized Marshall USA dealers are warranted by Marshall USA to be free from detects in material or workmanship under use and service period of five (5) years* on parts and three (3) years* on labor and speakers from the original date of purchase. Products must be purchased from an authorized dealer within the continental United States In order to receive warranty service.
Any products found to be defective within the applicable period will be replaced at the option of Marshall USA. without any charge provided that: (1) the product was not modified, misused, abused, improperly maintained by any person not authorized by Marshall USA, (2) failure resulted from a defect in material or workmanship and was not damaged due to use other than its intended use; (3) the product was not used in abnormal, excessive, or unusual operating conditions and (4) the product is promptly delivered prepaid to the seller at the place of purchase or to an authorized Marshall USA warranty service center with proof of purchase within the applicable period.
Do not return units to Marshall USA for service.
There are no warranties, expressed or implied, other than those expressed herein. Further, there is no warranty of merchantability or fitness for a particular purpose. This warranty does not cover units for loan or rental.
Limitation of liability; the above warranty represents purchaser's exclusive remedy and Marshall USA shall not be liable for any special, incidental, or consequential damages relating to the product sold.
Some states do not allow limitations on the duration of implied warranty or the exclusion may not apply to some purchasers. This warranty gives purchasers specific legal rights and purchasers may also have other rights which vary from state to state.
* Exceptions:
MS-2, MS-4, MT-1, Effects pedals | 1 Year |
Tubes, Footswitches | 90 days |
Vinyl Covers/Bags & Batteries | No warranty |
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