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Marshall JTM Studio ST20H – Guitar Amplifier
The Marshall JTM Studio ST20H is an all-tube guitar amplifier head that blends legendary Marshall tone with modern features like power reduction, FX loop, and DI out. Hand-built in the UK – ideal for home, studio, or stage use.
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Product attributes
Model :
JTM Studio ST20H
SKU :
SUP_KC1206
Warranty :
2 years
Producent :
Marshall
Weight without package:
9.3 kg
Incl. Footswitch:
YES
Product Description
Details
Marshall JTM Studio ST20H – Guitar Amplifier Head
The Marshall JTM Studio ST20H is a tribute to the original amplifiers that defined the sound of British rock. This compact, all-tube head brings the iconic JTM-series tone into modern settings like home studios, stages, or rehearsal rooms. Hand-built in the UK with great attention to detail, it delivers the classic tone vintage lovers crave.
Product Features
- Authentic 1960s Marshall tone
- All-tube construction with switchable power: 20W / 5W
- Two channels with jumper functionality for blending
- FX loop and DI output for modern applications
- Vintage aesthetics – classic logo, cream Tolex, gold hardware
Versatility without compromise
The ST20H not only looks like a 1960s classic – it sounds like one. The two channels (Normal and High Treble) can be blended for a wide range of tones, from clear and clean to thick crunch. Flexible EQ, FX loop, and DI out adapt it for studio, stage, or home use.
Ideal Applications
Perfect for guitarists into blues, classic rock, indie, or vintage pop. With its 5W mode, it’s ideal for home use. At 20W, it offers enough power for rehearsals or small gigs. Hand-built reliability also makes it ready for the road.
Detailed Technical Specifications
- Type: Guitar amplifier head
- Power: 20W / 5W (switchable)
- Tubes: 2 x ECC83 (preamp), 1 x ECC83 (phase inverter), 2 x 5881 (power amp)
- Inputs: 4 x 1/4" jacks (2 channels with high/low options)
- Outputs: Speaker out, FX loop (send/return), DI out
- Impedance: 16 Ω / 8 Ω / 4 Ω (selectable)
- Made in the UK
- Dimensions: 510 x 232 x 220 mm
- Weight: 9.4 kg
Materials & Build Quality
Covered in cream Tolex with gold hardware and the iconic "coffin" logo, the ST20H boasts retro style. The metal control panel and vintage-style knobs reinforce the 60s vibe. Premium components ensure long-term reliability.
What's in the box
- Marshall JTM Studio ST20H – amp head
- User manual
- Power cable
Why choose the Marshall JTM Studio ST20H?
If you're after the iconic Marshall sound but don’t need a 100-watt monster, the JTM Studio ST20H is the perfect solution. It offers authentic tube tone, practical features, and compact form. Whether you're playing at home, recording in the studio, or performing live – this amp delivers the unmistakable Marshall voice with modern flexibility.
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Product delivery details Marshall JTM Studio ST20H – Guitar Amplifier
Shipment from Warsaw, Poland.
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Product faq
Marshall JTM Studio ST20H – Guitar Amplifier - Frequently asked questions.
Does the Marshall ST20H have a power reduction switch?
Yes, it can switch between 20W and 5W – ideal for low-volume practice or recording.
What tubes are used in the ST20H?
2 x ECC83 (preamp), 1 x ECC83 (phase inverter), and 2 x 5881 in the power section.
Is there an FX loop?
Yes, it features a classic serial FX loop.
Is it suitable for home use?
Yes, the 5W mode makes it perfect for home environments and late-night practice.
Does it have a DI output?
Yes, the DI out allows for direct connection to an audio interface or mixer.
What speaker cabinets can I use with it?
It supports 16 Ω, 8 Ω, and 4 Ω – compatible with many popular guitar cabinets.
Where is the amp made?
In the UK – at Marshall’s original factory in Bletchley.
Can I jumper the channels?
Yes, you can jumper the Normal and High Treble channels for more tonal variety.
