PCX 1250 PCX 1500 PrecisionPower 9235 South McKemy Street, Tempe, Arizona 85284 www.precisionpower.
NO SOUND Is the LED lit? YES NO Check Power and Remote turn-on wire for voltage. Make sure Ground wire is secure. STILL NO SOUND See your Authorized PrecisionPower Dealer or call 1-800-62POWER. SOUND IN ONE CHANNEL ONLY NEW! Advanced Instrumentation Input Stage. NEW! 12dB/Octave; HP/LP/FULL; 30-4kHz Crossover. NEW! Independent Line Output Crossover 30-4kHz. PWM Power Supply. Triple Darlington Output Stage. AP-IV Protection Circuitry. QBASS™ Bass Boost.
On the PCX 1250 amplifier, we offer tremendous control of your bass with QBASS™. On the front end panel of your PCX 1250 you will find the QBASS™ level control. Adjust the level control clockwise for up to 12 dB of boost at a factory preset frequency of 40Hz with a Q-factor of 2 CAUTION: QBASS ™ should only be used in systems with a strong subwoofer section. +12dB is a large amount of bass boost and may damage your speakers if abused.
NOTE: TOOLS ARE NOT SUPPLIED Small flat blade screwdriver Phillips screwdriver (#2 or medium sized) Wire cutters Wire strippers 4 - #6 round head screws, and 1 - #8 sheet metal screw (or nut, bolt, flat washer star washer) [see detail] 2 - Ring connectors (large enough to accommodate your method of grounding) In-line fuse or circuit breaker - see fuse chart below Power and ground wire - see Power Wire Calculator on page 4 Speaker wire - 12-16 gauge Grommets (sized to work with the power wire you plan to use
The New! PCX™ amplifiers mass has been increased by 2 lbs. per linear foot over last year’s P O W E RC L A S S ™ amplifiers, resulting in far superior heat dissipation. The unique heatsink on your PCX™ amplifier has been designed with fins on the inside of the aluminum extrusion. This allows for the transfer of heat from the circuitry to the heatsink fins and out through the vents in the endplates. Be sure you have ample space around the amplifier for cooling; at least 2" on all sides.
When using 16 gauge or larger, run the speaker wires from the amplifier location through the vehicle to the speakers. Observe the same precautions for routing these wires that you followed for running the power and remote turn-on wires. Cut o ff excess and, using wire strippers, strip 1/4 inch of insulation. Locate the speaker/remote turn-on PowerLock connector. Loosen the outer screws on the underside of the connector. Insert the speaker leads into the end.
PCX 1250 PCX 1500 6 7 8 9 10 11 12 1 2 3 4 6 7 8 9 10 11 12 1 3 5 2 1. Cooling Plenums: Maintain a minimum 2” clearance around cooling plenums for proper amplifier cooling. 2. HP/LP/FULL Switch: Select the desired crossover setting, HP/LP/FULLfor the speaker output signal of the front channel. 3. Freq. Control: Move this detented control in a clockwise rotation to adjust the front crossover frequency from 30Hz to 4kHz. 4. Subsonic Filter Freq.
Locate an area near the amplifier(s) that is metal and clean an area about the size of a quarter to bare metal. Inspect the area around and underneath to be sure you won't drill into wires, brake or fuel lines, etc. Drill a pilot hole in the middle of this area. Terminate the ground wire with a ring connector and attach it to the bare metal using a #8 sheet metal screw and washer or preferably, a bolt, nut and a star washer (not supplied). We suggest crimping and soldering this connection.
The following is a basic formula to be used as a guide to determine current draw. A50% amplifier efficiency rating is used as an average. Your new PCX™ amplifier is more efficient than most other amplifiers. This formula is to be used as a guideline. Using wire of a larger gauge can only improve the current transfer of your system. Do not use smaller gauge wire.
On the PCX 1500 amplifier, we've taken bass control to a higher level with QBASS PLUS™. The two QBASS™ switches (labeled 1 and 2) on the front end of the amplifier allow you to select one of four frequency centers 30Hz, 36Hz, 44Hz and 60Hz, with a Q-Factor of 2. On the rear end plate you will find the QBASS™ level control and the plug-in for an optional QBASS REMOTE™ dash mounted level control. Adjust the level control clockwise for up to +18dB of boost at your selected frequency.
NEW! Advanced Instrumentation Input Stage. NEW! 12dB/Octave; HP/LP/FULL; 30-4kHz Crossover. NEW! Independent Line Output Crossover 30-4kHz. Fully Regulated PWM Power Supply. Triple Darlington Output Stage. AM-V Protection Circuitry. Forced Air Thermal Management. QBASS Plus™ Bass Boost. High Voltage Input Capability with -12dB Attenuation Switch. Gold Plated RCAInput and Output Connectors. PowerLock™ Speaker and Power Wire Connectors. 3-Yr Warranty; installed by an Authorized PrecisionPower Dealer.
Three-Year Limited U.S.A Warranty And thank you for choosing PrecisionPower audio equipment. At PrecisionPower we proudly design, engineer and manufacture audio products at our production facilities. Our award winning engineering team utilizes innovative technology to consistently deliver Absolutely State of the Art TM performance, sound quality, reliability, and value.
