Marshall SC20H Studio Classic 20w Head

The Marshall SC20H Studio Classic Head brings the core character of the original JCM800 into a more compact and manageable format. Built in the UK, this all-valve amp delivers everything from clean tones to aggressive overdrive, with a straightforward single-channel layout that stays true to the original design while adding practical features for modern players.

A built-in master volume allows you to push the preamp into saturation without excessive volume, while the power reduction switch lets you drop from 20 watts to 5 watts for more controlled environments. With high and low sensitivity inputs and a switchable effects loop, the SC20H keeps things simple but flexible for both stage and studio use.

Highlights

• UK-built all-valve head inspired by the original JCM800
• 20W to 5W power reduction for flexible volume control
• Single-channel design with classic Marshall gain structure
• Master volume for controlled overdrive tones
• FX loop and high/low inputs for added versatility

Specifications

Body

• Type: Amplifier Head
• Dimensions: 20.1" W x 9.4" H x 9.4" D

Hardware

• Construction: Valve (All-Tube)
• Channels: 1
• Controls: Preamp Volume, Master Volume, Treble, Middle, Bass, Presence
• Inputs: 2 x 1/4" (High/Low Sensitivity)
• Speaker Outputs: 5 x 1/4" (16Ω / 8Ω / 4Ω)
• Effects Loop: Yes (Series, Switchable)

Electronics

• Wattage: 20W (switchable to 5W)
• Preamp Tubes: 2 x ECC83, 1 x ECC83 (phase splitter)
• Power Tubes: 2 x EL34
• DI Output: Yes (1/4")

Miscellaneous

• Country of Origin: Designed and engineered in UK, Made in UK
• Included Accessories: Detachable power cable, speaker cable
• Other: Studio Series JCM800-inspired platform
• Weight: 20.7 lbs

Why Buy from Tone Shop Guitars?

At Tone Shop Guitars, we pride ourselves on offering a curated selection of instruments backed by knowledgeable staff and exceptional customer service. Whether you're shopping online or visiting us in person, our goal is to help you find the right guitar and deliver a top-tier experience every step of the way.