Assessments - 5, GPA: 3.8
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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 chassis. 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 sensitivity. 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. 8C O N T R O L S & F U N C T I O N S 9C O N T R O L S & F U N C T I O N S 9C O N T R O L S & F U N C T I O N S 9. Variable Low-Pass filter (50Hz – 250Hz): For use as a dedicated subwoofer channel, set filter switch to “LPF”. Adjust variable crossover frequency with control as desired. The amplifier input circuit filters out everything above 50Hz… ..250Hz (dependent on the adjustment of the frequency control), so only the deepest bass notes are amplified. 10. Variable High-Pass Filter (50Hz – 250Hz): For use as a dedicated mid high range channel, set filter switch to “HPF”. The input out all frequencies below 50Hz…..250Hz. 11. Variable Subsonic Filter (20Hz ~ 60Hz) 12. Phase Shift Switch (0 And 180 Degrees): allows you to change the phase of your subwoofer from 0 to 180 degrees to help compensate for timing difference between drivers 13. Low level Input RCA Jacks: These inputs are for signal cables from the source unit, always use high shielded RCA cables. 14. Line Out: The Line Out allows you to build multiple amplifier systems without having to use splitter cords to distribute the signal. Now it is a matter of bringing one set of RCA’S into the first amplifier, then using the LINE OUT RCA jacks as the feed to the next amplifier. 15. Remote Digital Voltmeter- Fig. 1 This LCD indicates the range from 10 volts to 15 volts. The LCD shows "LO" for 10 voltsbelow and "HI" for 15.5 volts over. HOUR METER - The hour meter is designed to provide the user with actual toal running time for the unit. Each number represents one hour of operation. (Fig 2) 16. (Optional) Bass Boost Knob: The remote bass boost knob works in con- junction with the amplifiers bass knob. Planning Your System Before beginning the installation, consider the following: A. If you plan to expand your system by adding other components sometimes in the future, ensure that adequate is left, and cooling requirements are met. B. Are your components matched? The peak power rating of your speakers must be equal or greater than the amplifier’s. They also must be 2-8 ohms impedance (This information is normally printed on the speaker magnet). C. Consider the length of your leads which should not be too long or short when determining the mounting location. Pre-Amp input jacks require a length of high quality shielded male to male RCA patch cord. Mounting Your Amplifier The mounting position of your amplifier will have a greater affect on its ability to dissipate the heat generated during normal operation. This amplifier has ample heat sink for heat dissipation, and is designed with a thermal shutdown circuit (for heat protection). DO NOT enclose the amplifier in a small box or cov...
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