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Description

The ST112 is a single-speaker 1x12" cabinet in the Studio JTM series, inspired by the JTM45 and built in Marshall's UK factory. It is a smaller, more portable alternative to larger Marshall cabinets while keeping the vintage voicing the range is known for.

It is loaded with one Celestion G12M-65 Creamback speaker rated at 65W and 16Ω, so the cabinet presents a 16Ω load with a 65W power handling figure. There is a single input on the cabinet. It is intended to be paired with the ST20H head as a compact vintage-style stack, or used as an extension cabinet for the ST20C combo.

The cabinet is finished in black and weighs 12.8 kg, with outer dimensions of 500 x 490 x 265 mm. It is designed and engineered in the UK and made in the UK. A manual is available for download from the maker.

Specifications

Brand
Marshall
Model
Studio JTM 1x12 Cabinet
Category
Live sound › Amplifiers

General

Model
STUDIO JTM 1x12 CABINET
Range
Studio
Colour
Black

Inputs

Inputs
1

Speakers

Speaker configuration
1x12"
Speaker model
Celestion G12M-65 Creamback (16Ω, 65W)
Power handling
65W
Unit impedance
16Ω

Physical

Weight
12.8 kg / 28.2 LB
Width
500mm / 19.7"
Height
490mm / 19.3"
Depth
265mm / 10.4"
Country of origin
Designed and engineered in UK. Made in UK.

Compatibility

Designed to pair with
ST20H head
Extension cab for
ST20C combo

Questions

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Data: marshall.com, tamsta.com; photos: Marshall product page · updated 2026-10-25 · Report a mistake