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5
GB
Power Amplifier
Ventilation outlet
Dissipates heat.
Depending on the temperature of the amplifier,
the fan operates in one of the three statuses:
stopped, low-speed, high-speed.
Heat sink cover
The direction of the heat sink cover can be
changed according to your preference (page 9).
Status indicator light
Lights up in white during operation.
If the protection circuit activates, the status
indicator light changes from white to red. For
details, see “Troubleshooting” (page 18).
TURN-ON switch
Selects the turn-on mode of the amplifier.
• “REMOTE”: Select this for remote turn-on
mode. The amplifier turns on when a turn-on
signal is received from the REMOTE terminal.
See “REMOTE terminal” (page 11) for details.
• “SIGNAL”: Select this for high-level sensing
turn-on mode. The amplifier turns on when a
turn-on signal is received from the INPUT
connector. This feature is only available for
high-level (speaker level) input connection.
See “REMOTE terminal” (page 11) for details.
Guide to Parts and Controls
Control Panel (Top Panel)
TURN-ON
REMOTE SIGNAL
INPUT MODE
1-4
1
CH 1-4
1
-
2
1
+
3/2
+
4
BRIDGED
CH 1
CH 2
5
5+6
SUB CH
1
+
2
3+4
LINE OUT MODE
THRU
ALL
STEREO
CH 3/4
SUB CH
BRIDGED
CH 3
CH 4
REMOTE
+
12 V
GROUND
L
R
L
R
SUB CH
50-
500
FILTER
RANGE (Hz)
HPF (Hz)
OFF
BP
HP LP
500-
5k
500
150
50
1.5k
LPF (Hz)
500
150
500
50
5k
500
5k
1.5k
INPUT SENS
50-
500
FILTER
RANGE (Hz)
HPF (Hz)
OFF
BP
HP LP
500-
5k
500
150
50
1.5k
LPF (Hz)
500
150
500
50
5k
500
5k
1.5k
INPUT SENS
CH 1/2
INPUT SENS
OFF
ON
150
500
50
OFF
ON
30
SUBSONIC FILTER (Hz)
50
5
LPF (Hz)
TURN-ON
REMOTE SIGNAL
50-
500
INPUT MODE
1-4
1
CH 1-4
1
-
2
1
+
3/2
+
4
FILTER
RANGE (Hz)
BRIDGED
HPF (Hz)
OFF
BP
HP LP
CH 1
CH 2
5
5+6
SUB CH
1
+
2
3+4
LINE OUT MODE
THRU
ALL
STEREO
500-
5k
500
150
50
1.5k
LPF (Hz)
500
150
500
50
5k
500
5k
1.5k
INPUT SENS
CH 3/4
SUB CH
BRIDGED
CH 3
CH 4
REMOTE
+
12 V
GROUND
L
R
L
R
SUB CH
50-
500
FILTER
RANGE (Hz)
HPF (Hz)
OFF
BP
HP LP
500-
5k
500
150
50
1.5k
LPF (Hz)
500
150
500
50
5k
500
5k
1.5k
INPUT SENS
CH 1/2
INPUT SENS
OFF
ON
150
LPF (Hz)
500
50
OFF
ON
30
SUBSONIC FILTER (Hz)
50
5
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