This reissue painstakingly reproduces the legendary, warm, and smooth tone of the original Marshall JTM that inspired generations of musicians.

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The first JTM amp created a legendary sound that inspired generations of musicians. In honour of that, the ST20C brings the iconic 60’s tone that initially launched Marshall to the present day, in a more compact format.

Whether you’re at home, in the studio, or on the big stage – the ST20C can adapt to bring exceptional tone to any situation with built-in power reduction technology, enabling players to switch between 20W and 5W.

This reissue painstakingly reproduces the legendary, warm, and smooth tone of the original Marshall JTM that inspired generations of musicians. The ST20C delivers the loud blend of crunch and clean recognised the world over.

Packed with the same vintage tones you know and love, just in a smaller package, the ST20C has the power of a classic Marshall amp in a compact design.

Ideal for creating that definitive vintage tone, the ST20C is equipped with a Celestion Creamback G12M-65 speaker. Switch between 20W and 5W at the flick of a switch to allow playing at a lower wattage without compromising on tone.

SKU: ST20C-H Categories: , Tags: , ,


Model: ST20C
Range: Studio
Technology: Valve
Channels: 1 with 2 voicings
Output wattage: 20W (with power reduction option to 5W)
Outputs: DI output and 5 x 1/4” speaker outputs (16Ω load / 8Ω load / 4Ω load)
Inputs: 4 x 1/4″ jack instrument inputs (high/low sensitivity)
Controls: Treble, Middle, Bass and Presence
Effects: None
Effects loop: Yes, send/return
Speaker configuration: 1×12”
Power handling: 65W
Speaker model: Celestion G12M-65 Creamback (16Ω, 65W)
Unit impedance: 16Ω
Preamp valves: 2 x ECC83, 1 x ECC83 (phase splitter)
Power amp valves: 2 x 5881
Cable: Detachable power cable included
Weight: 17.8kg / 39.2lbs
Width: 500mm / 19.7″
Height: 460mm / 18.1″
Depth: 265mm / 10.4″

Delivery Information


Responsibility for ownership of the Goods passes to the purchaser once we have delivered them.

Unless otherwise advised, delivery will be made by a fully-insured courier service, within normal business hours. A signature at this address will be required.

The charge for delivery will be shown at the final checkout stage before final submission. Unfortunately X MUSIC IRELAND LIMITED cannot guarantee delivery times or dates. The delivery charge shown is a standard charge and does not constitute a guarantee of delivery date from the time you have placed an order.

All delivery times and dates are subject to stock availability in Head Office, the backlog of orders, and Weekend or Bank Holiday exceptions. Unfortunately X Music Ireland Limited can in no circumstances, therefore, compensate for delayed orders.

Damages/shortages must be notified within 3 working days of delivery.

This does not affect your statutory rights.

Irish Orders with a value of over €199 (€200 +) are shipped free of charge unless otherwise stated. Some goods like digital pianos may incur an additional cost. Please see your cart at the time of purchase.

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