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PA400 FRONT PANEL
PA400 Front Panel
Functions.
Channels 1-6
1. Low impedance XLR input - For the
connection of low impedance
microphones.
2. High impedance Jack input - For the
connection of high impedance
microphones. Also suitable for acoustic
instruments with transducer type
pick-ups.
3-5. Bass, Middle and Treble EQ controls-
A wide range of tonal adjustment can be
selected using combinations of these
controls.
6. Monitor level - Provides the volume level
adjustment from the channel to the
monitor section.
7. Effects Level - Provides level adjustment
of the signal from the channel to effects
units linked through the master effects
loop.
8. Reverb Level - Allows the level of the
built in reverb to be adjusted on the
channel.
9. Volume control - This allows the
individual volume level of the channel to
be adjusted.
Channel 7 (tape channel).
10. Tape inputs - Phono (RCA) sockets to
accept the signal from tape or CD
players.
11. Tape outputs - Phono (RCA) sockets to
provide connection out to cassette or
other recording equipment.
12. Recording level control - Provides level
control of the output to external recording
equipment.
13- 14. Bass and Treble EQ controls - A
wide range of tonal adjustment can be
selected using combinations of these
controls.
15. Monitor control - Controls the level of
the tape signal to the monitor output.
16. Volume control - Provides level control
of the tape channel output.
9
8
7
6
5
4
3
2
1
Master Section.
17. 9 Band Graphic Equalizer - Provides
master EQ control across the audio
spectrum. This feature is particularly
useful for "shaping" the sound to achieve
peak performance in rooms of different
size and texture. Adjustment of -12 to
+12 dB is provided at 63Hz, 125Hz, 250
Hz, 500 Hz, 1 K Hz, 2 K Hz, 4 K Hz, 8 K
Hz and 16 K Hz. The slider tips are
loaded with an LED to provide the
display of graphic "shapes", even on
darkened stages.
18. Master Volume control - Controls the
overall volume level of the amplifier.
19. Master Reverb control - Provides the
overall level control of the reverb.
20. Effects Return control - Controls the
level of the signal returning to the
PA-400 from external effects processors
16
15
14
13
12
24
11
10
25
which would be linked through effects
loop sockets (26 & 27).
21. Effects Send control - Controls the level
of the signal from the PA-400 to the input
of external effects processors.
22. Monitor output control - Controls the
level of the output from monitor socket
(25) to drive a separate monitor power amp.
23. Effects to Monitor control - Provides
level adjustment of the effects return into
the monitor mix.
24. Reverb to Monitor control - Provides
level adjustment of the reverb into the
monitor mix.
25. Monitor output - Jack socket for
connection to power amplifier driving the
monitor system.
26. Effects Send - Jack socket for connection
to the input of external effects processors.
27. Effects Return - Jack socket which
17
23
21
20
19
18
22
29
30
26
28
31
27
accepts the signal from the output of
external effects processors.
28. Footswitch socket - For connection of a
two way (FS02) switch for reverb on/off
and effects loop in/out. If a single
footswitch is used, the reverb only will be
switched.
29. Pre-amp output - Provides a signal
directly out from the pre-amp (also mutes
the power amp) allows external
processing of signal which can then be
returned to Power Amp in socket (30).
30. Power Amp input - Provides a direct
input to the power amp stage of the
PA-400. Also acts as the effects return for
series connected processors linked via
socket (29).
31. Slave output - Sends out an overall
signal from the mixer section, suitable for
driving extra power amps, if the system
needs to be extended.
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