Alphasonik PMA640HCE, PMA1000HCE, PMA600HCE owner manual N T R O L S C T I O N S

1.Speaker Terminals: These nickel plated connectors can accept from 10 to 8 gauge wire. Be careful to observe proper polarity when connecting the cables.

2.To avoid unwanted ignition noise caused by ground loops, it is essential that the amplifier be grounded to a clean, bare, metal surface of the vehicle’s chas- sis. The nickel plated connector can accept from 4 to 2 gauge wire

Note: THE GROUND WIRE SHOULD NOT BE EXTENDED MORE THAN 3’ 6” (1 METER).

3.REMOTE TURN-ON INPUT: Attach to remote or power antenna output of a car stereo. This amplifier is turned “ON” remotely when the vehicle’s stereo is turned “ON”. The nickel plated connector can accept from 18 to 16 guage wire. Note: IF YOUR RADIO DOES NOT HAVE A +12 VOLT OUTPUT LEAD WHEN THE RADIO IS TURNED ON, THE “REMOTE” TERMINAL ON THE AMPLIFIER CAN BE CONNECTED TO THE VEHICLE’S ACCESSORY CIRCUIT THAT IS LIVE WHEN THE KEY IS “ON”.

4.Battery Positive Terminal: Due to the power requirements of the amplifier, this connection should be made directly to the positive (+) terminal of the battery. For safety measures install an in-line fuse holder (not included) as close to the battery positive (+) terminal as possible with an ampere rating not to exceed the value of the fuses in Amplifier.

5.Input Sensitivity Adjustment: This control adjusts the amplifier’s input sensitiv- ity. Input sensitivity is variable from 200 Mil volts to 8 volts. Clockwise increases sensitivity. Counterclockwise decreases sensitivity. This knob is not a volume control for the amplifier. The amplifier can be driven to full power with a wide range of signal levels. A lower signal level will require increased sensitivity for full power. A higher signal level will require decreased in sensitivity.

6.Bass Boost Frequency Adjustment: This control adjust the frequency to be boosted from 40Hz to 100Hz. (PMA800HCA).

7.Bass Boost Gain Adjustment: This control adjust the Bass Boost Gain for the amplifier’s speaker output (0 to +18dB).

8.Crossover: Adjust the crossover for your chosen installation method.

-LOW: Low pass filter-only bass tones (50Hz – 250Hz) go to speakers. Use with or sub-woofer

-FULL: No filter-all tones go to speakers. Use with full-range speakers, or with external crossovers.

-HIGH: High pass filter-blocks very low tones (50Hz – 250Hz) from the speakers.

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