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9100 and 9200 valve power
amplifiers
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
Connects channel A's high voltage circuit to the
1
2
power supply. LED 4 indicates green when
activated.
Note! Items 1 & 2 are marked 0 &1 (to comply
with international regulations), 0 is off and 1 is on.
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
Selects voice 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
Rotary control to boost the upper mid to high
1
2
A
3 4 5
6
7
3
4
5
6
frequency content of sound.
8. Channel A gain control
Rotary control to set and balance the incoming
signal level.
9. Channel B gain control
10. Channel B presence control
11. Channel B voice switch
9200
Dual MonoBloc Amplifier
8
9
10
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. Upper front panel fixing screws
Use 2mm (5/64) allen head driver to remove.
18. Front rack mount fixing holes.
Rear Panel
1. Mains input socket
Connects amplifier to incoming mains supply.
7
8
9
3
B
11
12 13 14
15
16
10
11
12
13
17
18
14
15
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