

Marshall SV20H brings the classic tone of 1959SLP straight to your home. Arguably the most famous amp of all time has been perfectly reinvented for today's guitarist, uniting the original all-valve sound with the choice to switch between 20W and 5W at the touch 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
Handcrafted in the UK
SV20H captures the classic Marshall spirit with an iconic British built valve amp.
Tame the untameable
Get everything you expect from 1959SLP, now available with power reduction technology, letting you shift gears from 20W to 5W.
Classic sound captured
SV20H accurately recreates the iconic sound heard on thousands of influential tracks from across the years.
Iconic stylings
A sonic essential lovingly recreated for today's player, SV20H truly mirrors 1959SLP.

SKU | MAR-MSV20HU112 |
MPN | SV20H |
Vendor | Marshall |
Amp Format | Head |
Amp Type | Tube |
Included From Manufacturer |
Power cable Speaker cable |
Mpn | M-SV20H-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, high treble input 1/4" low sensitivity, high treble input 1/4" high sensitivity normal input 1/4" low sensitivity normal input 1/4" effects loop return input |
Audio Outputs |
1/4" effects loop 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 | 20.4 lb |
Width | 19.7" |
Depth | 9.1" |
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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