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Summary of Contents for Precision Power PCX 250
- Page 1 PrecisionPower 9235 South McKemy Street, Tempe, Arizona 85284 www.precisionpower.com 8900-4005...
- Page 2 Adaptive PWM Power Supply. Triple Darlington Output Stage. AP-IV Protection Circuitry. Forced Air Thermal Management. (PCX 280) QBASS ™ Bass Boost (PCX 250) QBASS Plus™ Bass Boost. (PCX 280) High Voltage Input Capability with -12dB Attenuation Switch. Gold Plated RCAInput and Output Connectors.
- Page 3 You may also want to add a power distribution block near your amplifiers to distribute large gauge power cable to multiple amplifiers. Amplifier Maximum Fuse Rating PCX 250 30 Amp PCX 280 35 Amp...
- Page 4 Before beginning, disconnect the negative (-) terminal of the battery prior to working on the positive (+) terminal to prevent a short to ground. This is important, unless you want to spend the rest of your life with a nickname like "Sparky," or "Smokey."...
- Page 5 Check for stray strands of wire which may short out. Once the wires are secure, the PowerLock™ may be plugged into the amplifier. The Power/Ground PowerLock™ will accommodate 6 gauge wire for the PCX 250 and PCX 280. Power/Ground PowerLock™...
- Page 6 This button pushed ‘ I N ’ must be used for speaker level input on common ground head-units or for high voltage line drivers. PCX 250, 280 Control Panel 7. Q B A S S ™ Frequency Control: Buttons 1 and 2 offer the capability of selecting 30, 36, 44, or 60Hz to boost by the QBASS™...
- Page 7 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.
- Page 8 PCX 250 Power Panel 1. Cooling Plenums: Maintain a minimum 2” clearance around cooling plenums for proper amplifier cooling. 2. QBASS™ Control: Add more bass to the system by turning this control clock - wise to boost the selected QBASS™ frequency up to 18dB.
- Page 9 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.
- Page 10 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 P C X™ a m p l i f i e r 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.
- Page 11 QBASS™ (PCX 250) Up to 12dB of Boost centered at 40Hz, with a Q-Factor of 2. QBASS Plus™ (PCX 280) Up to 18dB of Boost with selectable center frequency at 30Hz, 36Hz, 44Hz or 60Hz, with a Q-Factor of 2.
- Page 12 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 c o n s i s t e n t ly deliver Absolutely State of the Art reliability, and value.
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