
Get Big, Inspiring Tone From the Marshall ST20C Studio JTM 20w 1x12 Combo – 20 W
The Marshall ST20C Studio JTM 20w 1x12 Combo is an amplifier built to help you get the tone you hear in your head — supplied as genuine Australian stock with local warranty. The first JTM amp created a legendary sound that inspired generations of musicians.
Why You’ll Love It
- Get the tone you hear in your head — in honour of that, the ST20C brings the iconic 60's tone that initially launched Marshall to the present day, in a more…
- Play at the right volume — whether you're at home, in the studio, or on the big stage – the ST20C can adapt to bring exceptional tone to…
- Shape your sound easily — this reissue painstakingly reproduces the legendary, warm, and smooth tone of the original Marshall JTM that inspired generations of musicians.
- Built for gigs and practice — the loud blend of crunch and clean recognised the world over.
Key Features
Design & Materials
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. SMALL BUT MIGHTY 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…
Performance Specs
- Whether you're at home, in the studio, or on the big stage – the ST20C can adapt to bring exceptional tone to any situation…
- Switch between 20W and 5W at the flick of a switch to allow playing at a lower wattage without compromising on tone
- 20 W
- 1x12 magnification and objective
What’s Included
The Marshall ST20C Studio JTM 20w 1x12 Combo as listed in the product name, with the manufacturer’s standard accessories. Ask our team if you need the exact box contents before ordering.
Perfect For
- Gigging guitarists and bassists
- Home and studio players
- Students and teachers
How It Stands Out
Power, speakers and channels are listed so you can match it to the rooms you play. Unlike grey imports, every amplifier we sell is genuine Australian stock with the official local manufacturer’s warranty, priced in AUD including GST. It is in stock at our Melbourne warehouse.
Frequently Asked Questions
Is it loud enough for gigs?
See the wattage and speaker details in Performance Specs.
Can I use headphones?
If a headphone output is listed in the specs, yes.
Is the Marshall ST20C Studio JTM 20w 1x12 Combo genuine Australian stock?
Yes. Every product is 100% genuine Australian stock with the official local manufacturer’s warranty.
How long does delivery take?
This item is in stock at our Melbourne warehouse and ships with StarTrack Express — free on orders over $500 AUD.
Technical Specifications
Need the full manufacturer specification sheet for this model? Ask our Melbourne gear desk on 0489 989 442 and we will send it through.
Australian Warranty & Support
This product is supplied with Marshall’s manufacturer warranty for Australian stock. Warranty length and terms vary by brand and model — contact us with the model and we will confirm the details before you order.
These benefits are in addition to your rights under the Australian Consumer Law. Accessories and consumable parts can carry different terms, and manufacturer terms can change, so check the official terms for your purchase date.
- Full official Australian manufacturer warranty with local repair centers.
- Australian Consumer Law (ACL) consumer guarantees apply to all purchases.
- Complimentary technical setup assistance via Melbourne gear desk.
Estimated Delivery
- Melbourne Metro
- 1 business day (same-day courier available)
- Sydney, Canberra & Brisbane Metro
- 1 – 2 business days (StarTrack Overnight)
- Adelaide & Hobart Metro
- 1 – 2 business days
- Perth & Darwin Metro
- 2 – 3 business days
- Regional & Remote Australia
- 2 – 4 business days
- New Zealand
- 3 – 7 business days
- Asia (selected countries)
- 5 – 10 business days
- Europe & United Kingdom
- 7 – 14 business days
- North & South America
- 7 – 14 business days
- Africa
- 10 – 20 business days
Orders placed before 2:00 PM AEST on business days are normally dispatched the same day. International delivery times are estimates from dispatch, and we confirm the international shipping cost before you pay. Import duties, taxes and customs fees charged by the destination country are the buyer’s responsibility. Some products, such as drones, radios and lithium batteries, have export or carrier restrictions; we confirm any restriction before you pay.
We cannot ship to: North Korea, Iran, Syria, Cuba, Russia, Belarus, Crimea, Donetsk and Luhansk regions. See the full delivery & shipping policy.