JBL CSA2120 2-Channel Installed Sound Power Amplifier - Manual (Page 14)

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3.2 Front Panel Controls and Indicators
A. Level: Rotary level control, one per channel.
B. Meter Group (one per channel):
• Clip Indicator: Red LED turns at the threshold of audible distortion.
• Signal Indicator: Green LED flashes wh en a very low-level signal (Threshold
-40dB) is present at input. May be used for troubleshooting cable runs.
C. Power Indicator: Indicates that AC power is being applied to the unit .
3.3 Rear Panel Controls and Connectors
D. AC Line Connector
E. Output Connectors: 4-pin Euroblock connectors for dual loudspeakers.
F.
Amplifier Parameter Switches: Slide DOWN to turn on these functions. Slide UP
to turn them off. The parameter switches are numbered as below:
1. CH1 70Hz highpass filter
2. CH2 70Hz highpass filter
3. CH1 peak limiter
4. CH2 peak limiter
5. Auto-Standby
G. RCA Connectors
H. Euroblock Connectors: Two 3-pin Euroblock connectors each accept a
balanced or unbalanced line-level input signal.
A C
B
D E F G
H
Figure 3.3 Rear View
Figure 3.2 Front View