Marshall SV20H Studio Vintage 20W Head
Marshall - SV20H, 20W All Valve Guitar Amplifier Head with Effects Loop
Email me when the availability or price changes
Finance this product
- From £27.98 / month (APR 16.9%) for 36 months or 0% for 4 months
- With a 10% deposit from just £19.96 / month (APR 15.9%)
- SCANPROTECT Protect against installation damage for 28 days.
SV20H 20W All Valve Amp Head
Ultimate Marshall Tone In A Small PackageWhy let the touring artists have all the fun when the SV20H can give you the iconic tone of the 1959SLP at home or in the studio. Select between 20W and 5W at the flick of a switch and let the defining sound of the plexi live on.
In true plexi fashion, the SV20H features four separate guitar inputs, two for each channel. This gives you the ability to go between the brightness of the high treble channel, the roundness of the normal channel, or blend between the two with a patch cable. Add in the EQ and presence controls and you can take your sound from warm saturated blues to aggressive biting leads. The power reduction feature also makes it versatile enough for studio recording and home practice.
20WPower
2 x EL34Power Amp Valves
2 x ECC83, 1 x ECC83Preamp Valves
at a glance
• 20 watt all valve amplifier head
• 2 (Normal, High Treble) channels
• 2 x ECC83, 1 x ECC83 Preamp valves
• 2 x EL34 Power amp valves
• Effects loop built-in
• Signature Marshall tone
Classic Marshall Sound with Added Versatility
HANDCRAFTED IN THE UKAn iconic British-built valve amp that captures the Marshall spirit, the SV20H accurately replicates the iconic sound heard on thousands of influential tracks from across the years. The vintage tone is driven by three ECC83 preamp valves and two EL34 power amp valves.
CLASSIC SOUND CAPTUREDAccurately recreating the iconic sound heard on thousands of influential tracks from across the years. The SV20H has the power of a Plexi in a new portable style. It’s got the same vintage tones you know and love, just redesigned for the modern player.
TAME THE UNTAMEABLEEverything you expect from the 1959SLP is now available with power reduction technology, so you cam shift through the gears from 20W to 5W. It’s also significantly smaller and lighter than it’s 100W counterpart, making travelling and touring easy.
ICONIC STYLINGSMarshall have re-worked the timeless elegance of the plexi era for the modern guitarist. Nothing quite beats black and gold. You can complete the 60’s set up with a matching Studio Vintage 1x12" cab or 2x12" cab, loaded with Celestion V-type speakers.
Studio Vintage | Official Demo | Marshall

The Tech Spec
| Features | Specification | Amplifier Type | Tube |
|---|---|
| Number of Channels | 2 (Normal, High Treble) |
| Total Power | 20W |
| Preamp Tubes | 2 x ECC83, 1 x ECC83 (phase splitter) |
| Power Tubes | 2 x EL34 |
| EQ | 3-band EQ |
| Inputs | 2 x 1/4" (high, low treble input), 2 x 1/4" (high, low normal input) |
| Outputs | 1 x 1/4" (16 ohm), 2 x 1/4" (single 8 ohm or 2 x 16 ohm), 2 x /14" (single 4 ohm or 2 x 8 ohm), 1 x 1/4" (DI out) |
| Effects Loop | Yes |
| Bias Type | Cathode Biased |
| Construction Material | Black Tolex |
| Power Source | Standard IEC AC cable |
| Dimensions | Width: 500mm / 19.7" Height: 240mm / 9.4" Depth: 230mm / 9.1" |
| Weight | 9.25kg / 20.4 lbs |
PayPal Credit
| Monthly Payment: | £72.39 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £799.00 |
| Total inc. interest: | £868.64 |
| Monthly Payment: | £39.02 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £799.00 |
| Total inc. interest: | £936.32 |
| Monthly Payment: | £27.98 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £799.00 |
| Total inc. interest: | £1,007.21 |
| Example | |
| Minimum Spend: | £99 |
| Instalment Rate: | N/A |
| Cost of purchase: | £99 |
| Total inc. interest: | £99 |
Representative Example:
Purchase Rate: 23.9% p.a. (variable)
Representative: 23.9% APR (variable)
Assumed Credit Limit: £1,200
Subject to status. Terms and Conditions apply.