CONTROLS, INDICATORS, AND TERMINALS
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| INPUT |
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| REAR |
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OUTPUT | FRONT | REAR | MODE |
| FREQ180 | MODE |
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| 60 | 60 |
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| HPF OFF LPF |
| HPF OFF LPF |
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L |
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SPKR LEVEL |
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| SENS | 30 | BOOST 300 | SENS | 30 | BOOST 300 | REMOTE |
R |
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| MIN | MAX 0 | +18 MIN | MAX 0 | +18 |
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| 3 | 11 | 10 | 13 | |
Figure 1: Input Panel Terminals and Controls
COUSTIC.COM
11.REAR CHANNEL INPUT SENSITIVITY LEVEL CONTROL (SENS)
The input sensitivity level can be varied from 5.0 volts to 100 mV depending on the output voltage of the source unit (refer to
12.REAR CHANNEL HIGH IMPEDANCE INPUT
To be connected to RCA
13.REMOTE SUBWOOFER GAIN INPUT (not available on 321QE)
To be connected to the optional R S remote subwoofer volume control.
OUTPUT PANEL
1. | FRONT CHANNEL FILTER MODE SELECT SWITCH (MODE) |
| "HPF": Slide switch to this position if the amplifier is used as a mid/tweeter amplifier. |
| "OFF": Slide switch to this position if the amplifier is used as a |
| "LPF": Slide switch to this position if the amplifier is used as a subwoofer amplifier. |
2. | FRONT CHANNEL |
| Select a |
3. | FRONT CHANNEL BASS BOOST CONTROL (BOOST) |
| Select a boost level between 0dB and +18dB to enhance the bass performance of your sound |
16 17 15 | 14 | 18 |
| PWR /PRT |
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| FUSE |
GND REM B+ |
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| BRIDGE |
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+ | L | - | + | R | - |
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| FRONT |
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| REAR |
+ | L | - | + | R | - |
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| BRIDGE |
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4. | FRONT CHANNEL INPUT SENSITIVITY LEVEL CONTROL (SENS) |
| The input sensitivity level can be varied from 5.0 volts to 100 mV depending on the output volt- |
| age of the source unit (refer to |
5. | FRONT CHANNEL HIGH IMPEDANCE INPUT |
| To be connected to RCA |
6. | FRONT/REAR CHANNEL LOW IMPEDANCE INPUT |
| To be connected to speaker outputs from a source unit when |
7. | LINE LEVEL OUTPUT |
| This output can be used to connect to another amplifier for system expansion. |
| Note: This line level output is full range. |
8. | REAR CHANNEL FILTER MODE SELECT SWITCH (MODE) |
| "HPF": Slide switch to this position if the amplifier is used as a mid/tweeter amplifier. |
| "OFF": Slide switch to this position if the amplifier is used as a |
| "LPF": Slide switch to this position if the amplifier is used as a subwoofer amplifier. |
9. | REAR CHANNEL |
| Select |
10. REAR CHANNEL BASS BOOST CONTROL (BOOST) | |
| Select a boost level between 0dB and +18dB to enhance bass performance of your sound |
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Figure 2: Output Panel Terminals and Indicators
14.POWER AND PROTECT INDICATOR (PWR/PRT)
Green light indicates that the amplifier is "ON." Red light indicates either a high current, short circuit or DC offset is detected at the speaker outputs. The amplifier will revert to normal operation once the problem is rectified. The red indicator also lights up at a high operating temperature. Under this condition, the amplifier will automatically shut down. As soon as the temperature falls to a safe level, the amplifier will automatically resume operation.
15.POWER INPUT TERMINAL (B+)
To be connected to the positive terminal of the vehicle’s battery or other constant +12 V source.
16.GROUND INPUT TERMINAL (GND)
To be wired to the vehicle’s chassis for ground.
17.REMOTE TURN-ON INPUT TERMINAL (REM)
To be connected to the remote control wire or power antenna lead of the source unit for remote ON/OFF.
18.FUSE RECEPTACLE
19.FRONT CHANNEL LEFT/RIGHT SPEAKER OUTPUT TERMINAL For connection to the front speaker system.
20.REAR CHANNEL LEFT/RIGHT SPEAKER OUTPUT TERMINAL For connection to the rear speaker system.
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