Studio JTM Head

Compact 20W head built in the UKMore details

Black

Marshall ST20H with red curtain and scratch marks

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

ERA-DEFINING SOUND

Power reduction from 20W to 5W at the flick of a switch

This amplifier provides you with the versatility to tailor your power output to suit your environment. Effortlessly select between 20W and 5W power output to seamlessly transition from the rehearsal room to the communal space and back again, without compromising on tone.

Clean 1

Crunch 1

Crunch 2

A Marshall ST20H amplifier.

Inspired by the original JTM45

Reproducing the legendary, warm and smooth tones of the original JTM45, the Studio JTM range looks as good as it sounds. Let the all-valve, era-defining sound of the JTM steal the show, whether playing at home or on stage.

GIF showing different angles and shots of the Marshall Studio JTM Head amp.
Studio JTM Head amplifier from Marshall.
The Marshall Studio JTM Head highlighted from an old photo.

All-valve

This instantly recognisable tone is driven by two ECC83 preamp valves, two 5881 power amp valves and one ECC83 phase splitter.

A black cabinet with a Marshall ST20H amplifier.
A Marshall ST20H amplifier and guitar sitting on a wooden floor.

Built in our UK factory

Meticulously crafted in our Bletchley, England, factory the Studio JTM features classic Marshall touches such as a robust metal 'coffin' logo with golden piping and beading that pays homage to the 1960s. After extensive years of development, the Studio JTM delivers the timeless and velvety tones reminiscent of the original JTM.  

A black and white photo of men working in a Marshall's factory.

PRODUCT DETAILS

OUTPUT WATTAGE

20W with power reduction to 5W

CHANNELS

Single channel with two voices

ELECTRONICS

Effects loop

INPUTS

4 x 1/4" jack inputs