Marshall Amplification STUDIO JTM ST20H - Rear Panel Functions; Speaker Outputs and Connections; Effects Loop and DI Output; Power Inlet and Safety Notes

REAR PANEL FUNCTIONS
1. SPEAKER OUT
1/4” socket for 16 Ohm speaker connecon.
2. SPEAKER OUT
1/4” socket for 8 Ohm speaker connecon
– use this in conjuncon with socket 3 when
plugging in 2 x 16 Ohm cabinets.
3. SPEAKER OUT
1/4” socket for 8 Ohm speaker connecon
– use this in conjuncon with socket 2 when
plugging in 2 x 16 Ohm cabinets.
4. SPEAKER OUT
1/4” socket for 4 Ohm speaker connecon
– use this in conjuncon with socket 5 when
plugging in 2 x 8 Ohm cabinets.
5. SPEAKER OUT
1/4” socket for 4 Ohm speaker connecon
– use this in conjuncon with socket 4 when
plugging in 2 x 8 Ohm cabinets.
Warning: never aempt to connect more
speakers than rated. The safe combinaons are
those listed in this manual. Any other speaker
combinaons may stress the power amp and
potenally lead to valve failure.
Note: never use this amp without a speaker load.
6. DI OUTPUT
Connect your amp to an external recording
device or sound desk using this output socket.
Note: the DI output has added loudspeaker
emulaon.
7. LOOP SWITCH
This turns the eects loop of the amp on or o
to completely remove the loop from the signal
path when switched o.
8. EFFECTS LOOP SEND
Sends signal to eects loop / outboard
equipment.
9. EFFECTS LOOP RETURN
Returns signal to eects loop / outboard
equipment.
10. POWER INLET
The supplied mains power lead is connected here.
ST20C
7
654321 8 9 10
ST20H
7
654321 8 9 10
Note: the high treble and normal inputs can be
linked together with a 1/4” patch cable to blend
and create the tone that suits the player.
5
ENGLISH