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Marshall Amplification STUDIO JTM ST20H User Manual

Marshall Amplification STUDIO JTM ST20H
44 pages
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STUDIO JTM
ST20H & ST20C
QUICK START GUIDE
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Marshall Amplification STUDIO JTM ST20H Specifications

General IconGeneral
Power20 Watts
Power Tubes2 x EL34
EQBass, Middle, Treble
Inputs1 x 1/4"
Speaker Outputs1 x 16 Ohm, 1 x 8 Ohm
Effects LoopYes
TypeTube
Footswitch I/O1 x 1/4"
Preamp Tubes3 x ECC83/12AX7

Summary

Safety and Setup Instructions

General Safety Precautions

Essential warnings regarding mains compatibility, fuse usage, and safe equipment handling.

Initial Setup and Operation

Step-by-step guide for connecting, powering on, and configuring the amplifier for use.

Specifications

Front Panel Functions

Power and Standby Controls

Details on the power switch, standby switch, and power indicator light for amp operation.

Tone and Volume Controls

Explanation of Bass, Middle, Treble, Presence, and Loudness controls for tone shaping.

Input Jacks and Voicing

Information on high treble and normal inputs for different gain and tone characteristics.

Rear Panel Functions

Speaker Outputs and Connections

Details on 1/4" speaker outputs for various impedance loads and cabinet configurations.

Effects Loop and DI Output

Information on connecting external effects, sending/returning signals, and using the DI output.

Power Inlet and Safety Notes

Location of the mains power inlet and important safety warnings regarding speaker loads.

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