
Studio JTM Head
A 20-watt all-valve guitar amplifier head from Marshall's Studio range, made in the UK and modelled on the tone of the original JTM45. It offers two voices and a switchable 20W/5W output for players who gig, rehearse or play at home.
- 20W all-valve head with switchable 5W power reduction
- Single channel with two voices that can be blended
- Series-switchable effects loop and 1/4" DI output
- 2 x ECC83 preamp, ECC83 phase splitter, 2 x 5881 power valves
- Five speaker outputs for 16Ω, 8Ω and 4Ω loads
- Designed, engineered and made in the UK
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The Studio JTM Head (ST20H) is a compact valve amplifier head with a single channel that carries two voices, which can be used separately or blended. Output power can be switched between 20W and 5W, so the same amp suits quieter rooms and louder stages without a change in tone. The sound is built around two ECC83 preamp valves, an ECC83 phase splitter and two 5881 power valves.
The front panel has four 1/4" instrument inputs with high and low sensitivity, plus Normal/Loudness II, High Treble/Loudness I, Treble, Middle, Bass and Presence controls. There is no onboard effects section, but a series-switchable effects loop is fitted for external processors.
On the rear, five 1/4" speaker outputs cover 16Ω, 8Ω and 4Ω loads, and a separate 1/4" DI output is provided. The head is finished in black with the classic metal 'coffin' logo, golden piping and beading, and is built at the Marshall factory in Bletchley, England. A detachable power cable and a speaker cable are supplied.
Myndband
Tækniupplýsingar
- Framleiðandi
- Marshall
- Líkan
- Studio JTM Head
- Flokkur
- Gítarar og bassar
General
- Model
- ST20H
- Range
- Studio
- Technology
- Valve
- Channels
- 2, bridgeable
- Colour
- Black
Audio
- Output wattage
- 20W (with power reduction option to 5W)
- Preamp valves
- 2 x ECC83, 1 x ECC83 (phase splitter)
- Power amp valves
- 2 x 5881
- Controls
- Normal/Loudness II, High Treble/Loudness I, Treble, Middle, Bass, Presence
- Effects
- None
Inputs
- Instrument inputs
- 4 x 1/4" jack (high/low sensitivity)
Outputs
- Speaker outputs
- 5 x 1/4" jack sockets (16Ω load / 8Ω load / 4Ω load)
- DI output
- 1/4" jack
Connectivity
- Effects loop
- Yes, 1 x series switchable
Physical
- Weight
- 9.25 kg / 20.4 lb
- Width
- 500 mm / 19.7"
- Height
- 240 mm / 9.4"
- Depth
- 230 mm / 9.1"
- Country of origin
- Designed and engineered in UK. Made in UK.
In the box
- Power cable
- Detachable power cable included
- Speaker cable
- Included