Rear Panel Features - Marshall Amplification EL84 20/20 Manual

EL34 50/50 & EL35 100/100 Front Panel Features
1 2
1. Channel A mains power rocker switch
Connects channel A to incoming mains supply.
LED 3 indicates red when activated.
2. Channel A standby switch
high voltage circuit to the power supply.
LED 4 indicates green when activated.
Note!
To conserve valve life, standby switch 2 should
remain off for at least 1 minute after powering up the
amplifier.
3/4. Mains & standby LED's.
5. Voice B LED
Indicates red when channel A's voicing
option B is activated.
6. Channel A voice toggle switch
option A or B, this function is repeated on a remote
switching jack on the rear panel (see rear panel
functions). The switch should be in the B position for the
remote switch to be operative.
7. Channel A presence control
boost the upper mid to high frequency content of sound.

Rear Panel Features

1 2 3
1. Mains input socket
incoming mains supply.
2. Channel B mains fuse
correct ratings.
3. Channel A mains fuse
correct ratings.
EL34 50/50
A
Dual MonoBloc Amplifier
3 5 6 7
4
Connects channel A's
Selects voice
Rotary control to
4 5 6
Connects amplifier to
Please see specifications for
Please see specifications for
8 9 10
8. Channel A gain control
balance the incoming signal level.
9. Channel B gain control
10. Channel B presence control
11. Channel B voice switch
12. Channel B voice LED
13. Channel B standby LED
14. Channel B mains LED
15. Channel B standby switch
16. Channel B mains switch
Note!
Channel A's notes also apply.
17. Front rack mount fixing holes.
7 8 9 10
4. Channel B H.T. fuse
correct ratings.
5. Channel A H.T. fuse
correct ratings.
6. Channel B loudspeaker jacks
to loudspeaker load - model EL34 50/50 - 50 watts RMS,
model EL34 100/100 - 100 watts RMS.
5
B
11
12 14 15 16
13
Rotary control to set and
11 12 13
Please see specifications for
Please see specifications for
Connects channel B
17
14 15