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Marshall SV20H Studio Vintage 20-watt Amplifier Head

20W, 2-channel Tube Guitar Amp Head with FX Loop and DI Out
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Item ID: SV20H
Marshall SV20H Studio Vintage 20-watt Amplifier Head
Marshall SV20H Studio Vintage 20-watt Amplifier Head

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SV20H Studio Vintage 20-watt Amplifier Head and SV112 Studio Vintage 70-watt 1x12" Extension Cabinet

SV20H Studio Vintage 20-watt Amplifier Head and Studio Vintage 140-watt 2x12" Speaker Cabinet
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Marshall SV20H Studio Vintage 20-watt Amplifier Head
$1,349.99
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Link to Gator Cableworks Headliner Series Speaker Cable - 3 foot
$29.99
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Link to Marshall Studio Vintage 140-watt 2 x 12-inch Speaker Cabinet
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Plexi Tone in a 20-watt Head: The Marshall SV20H!

Ask any amp aficionado which amplifier led the rock revolution, and you’ll get a near-unanimous response: the Marshall 1959 Super Lead. The SV20H Studio Vintage takes that legendary tone and packs it into a 20-watt head. Plug in, and you’ll experience saturated blues grit and biting leads — the iconic Plexi tone. The Studio Vintage has plenty of player-friendly features on tap, such as four separate inputs, high- and low-sensitivity loudness controls, a 3-band EQ with Presence control, an effects loop, and a DI output. Worried about disturbing your neighbors? Don’t — the Studio Vintage’s power reduction circuit takes its wattage down to a bedroom-friendly five watts. If you want cranked Plexi tones from a compact, studio-sized amp, the Marshall SV20H Studio Vintage absolutely nails it.

Related Videos: SV20H Studio Vintage 20-watt Amplifier Head

1959 Plexi — the amplifier that led the rock revolution

The Marshall SV20H Studio Vintage is a low-watt version of Marshall’s 1959 Super Lead, a.k.a. the coveted Plexi. Townshend, Clapton, and Hendrix, to name a few, all played the 1959 Super Lead. This is the iconic amplifier that defined the sound of rock ’n’ roll for generations of guitar players, and it can be seen on countless stages of yesterday and today, including Woodstock. If you want the tone that inspired generations of iconic guitarists, plug into a Studio Vintage — it delivers true-to-life Plexi tone!

Loaded with all the player-friendly features you need

Consider yourself lucky, because the Marshall SV20H Studio Vintage sports features not found on the original 1959 Super Lead. An effects loop makes integrating your pedals and external processors a breeze. Attaining cranked tones at listenable volumes is a breeze thanks to a power reduction circuit. You also get a DI output for easy recording or routing to a PA. The guitarists at Sweetwater value the Studio Vintage’s modern flexibility almost as much as we appreciate its classic tone.

Marshall SV20H Features:

  • Packs the legendary tone of a 1959 Super Lead into a 20W head
  • Conjures up saturated blues grit and biting leads — the coveted Plexi sound
  • 4 separate inputs for you to blend your sound, along with high- and low-sensitivity loudness knobs
  • 3-band EQ with Presence control supplies flexible sound shaping
  • Effects loop makes integrating your effects pedals and processors easy
  • Power reduction circuit takes wattage down to a bedroom-friendly 5W
  • DI output for easy recording or routing to a PA

Resources

Guitar Amp Buying Guide
Best Low-watt Tube Amps
Jul 9, 2022
The Guitarist's Guide to Electric Guitar Amps - Part 2: Preamp
Apr 18, 2018

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Tech Specs

  • Type: Tube
  • Number of Channels: 2 (Normal, High Treble)
  • Output Power: 20W (5W setting)
  • Preamp Tubes: 3 x 12AX7
  • 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
  • Height: 9.4"
  • Width: 19.7"
  • Depth: 9.1"
  • Weight: 20.4 lbs.
  • Manufacturer Part Number: SV20H-U

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Reviews

4.8

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The Best Marshall Ever!
In my humble opinion and 58 years of playing guitar this is the greatest amp ever made, bar none! And i have and do own more than 15 amps.

It simply is iconic Tone in a Modern Package. The SV20H is a true "baby" Super Lead, delivering the signature aggressive mids and cutting high-end harshness that defined classic 1960's and 70s rock.

Oh man, it excels at producing tones ranging from saturated blues to driving rock lead and rhythm, easily nails sounds reminiscent of AC/DC, Led Zeppelin and ZZ Top. It breathes with your guitar creating an undeniable symmetry between the two.

It is built in Marshall's UK factory and retains the traditional four-input configuration. This allows you to "jumper" the channels to blend the Normal and High Treble volumes for complex tone shaping as there is no master volume or "gain" controll. I juper the two channels and plug my guitar into the 'Normal Loudness" 2 lower input. I also use the Timmy Overdrive Pedal on my pedalboard to give it that push and the sound is pure heaven!

Despite it's smaller package as compared to the 1959 Super Lead 100 it feels and responds EXACTLY like its much larger 100W brother.While the original 100-watt Plexi requires extreme, and in todays world, (unless you're playing at the Los Angeles Forum!) unusable volume levels to reach its "sweet spot," the SV20H delivers that same "big-box" Marshall spirit at lower volume levels better suited for modern stages and sound proof home studios.

But make no mistake. Even switching from 20 watts to 5 watts this amp is LOUD!
by Donald Sarian from Burbank, CA on
Music background: Professional
As good as it can get
I always used the Plexi to base my distorted sound in effect simulators, I never had a real one to try and couldn't afford it, until this amp arrived, it's even better than I imagined, it still cracks your ears from how loud it is that sounds but trust me it sounds great i wish this studio 20w amp was made 20 years ago
by Fheder from Miami, Florida on
Music background: plain rock
Loud and just killer
I have a Friedman Runt 50 and EVH 50. This amp to me is just as loud. Played a gig in 5 watts. It was mic but so so loud and the tone. Amp alone gets you that classic tone. Boost it with a SD1 and the tone is to die for. Reid Bright hooked me up. Best salesman at Sweetwater
by John on
Music background: Writing music from classic rock to neoclassical to heavy metal. Love it all. 24 years play guitar.
Marshall vintage 20 watt studio
Sounds great, OCD,tube screamer. Plug your strat into input 2 nice fat cleans volume for home on 2. Tried the little black box in the effects loop sounded like a Kazoo you don't need that and you really don't need to jump the inputs. Why would anybody want to plug into the high treble side maybe you would jump the inputs if You are playing really loud and needed a little more treble Once again thanks to Matthew and Sweetwater for the great service
by Nick Patsios from Florida on
Music background: Blues and rock
Rocks out hard!
This amp flat out kicks total butt. A big thank u to Austin Zachrich for helping with all my gear. I will end up with the 800 as well.
by Harley Donaho from Pekin IL on
Music background: 30 years

There are countless "British"-style guitar amplifiers out there, but take it from the lifelong guitarists and tone connoisseurs at Sweetwater, when it comes to Marshall tone, there's nothing like the real thing. We've played them all, from vintage JTM45s and the ultra-cool Plexi reissue to modern handmade masterpieces such as the JVM410. There isn't a model among them we can't recommend with total confidence, and that includes their more affordable models too, like MG, DSL, and Code series amps. Thanks to our tight relationship with Marshall, Sweetwater's always on the cutting edge of their latest designs, custom models, and limited-edition gems. If you want iconic tone from across the pond, you want Marshall, and your Sweetwater Sales Engineer will help you find the perfect one.

See also: Amp Heads, Marshall, Marshall Guitar Amp Heads