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Front Panel
-∞
1
2
1
Rack Ears:
Secure the unit into a rack with four screws.
2
Signal & Limit LED:
LED lights in blue indicates input signal is received. Reduce the input gain is the red LIMIT LED flashing. The red LIMIT
LED constantly light indicates an overloaded input gain, overheating protection, overload protection or speaker
failure.
LED Display state:
• Input signal: Blue.
• Clipping/maximum power: Flashing red.
• Overheating, overloading, failure: Constantly lighted red.
3
Level Controls:
Adjusts the input level. To increase signal gain, rotate the knobs clockwise. To reduce the gain, rotate the knobs
counter- clockwise.
When a bridge connection is made
• When Channels A and B are bridge-connected (AMP MODE Switch
level control adjusts the input levels of Channels A and B. In this event, the CH B level control cannot be used.
• When Channels C and D are bridge-connected (AMP MODE Switch
level control adjusts the input levels of Channels C and D. In this event, the CH D level control cannot be used.
4
BRIDGE Mode LED:
The LED lights up constantly when apparatus is in Bridge Mode.
5
ON/OFF(Standby) Button:
The amplifier is on when the button is pressed in. When the button is pushed out, the amplifier is off (standby).
6
Power On & Standby LED:
When the ON/OFF button is pressed in (power on), the LED will light in blue. The LED will light in red, when the ON/OFF
button is pushed out (standby).
Sapphire III（Base）Power Amplifier
-∞
0dB
0dB
Sapphire III Base
-∞
3
4
Sapphire III
-∞
0dB
is set to Bridge position), the CH A
6A
6B
is set to Bridge position), the CH C
Sapphire III
4 Channels DSP Power Amplifier
-∞
0dB
5
6
9
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