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PCX 250
PCX 280
PrecisionPower 9235 South McKemy Street, Tempe, Arizona 85284 www.precisionpower.com
8900-4005
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NEW! Advanced Instrumentation Input Stage. NEW! 12dB/Octave; HP/LP/FULL; 30-4kHz Crossover. NEW! Independent Line Output Crossover 30-4kHz. 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. PowerLock™ Speaker and Power Wire Connectors. Mixed Mono/Stereo
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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 to 16 gauge Grommets (sized to work with the power wire
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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." Reconnect the negative terminal only after all connections have been made. Warning! A Main Fuse must be installed within 18" of battery! 16 5
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NO SOUND Is the LED lit? Once you have run both the power and ground wires, it's time to connect the cables to the amplifier. Cut off excess wire and, using wire strippers, strip the ends YES NO of the power and ground cables approximately 1/4 inch. Locate the PowerLock Check Power and Remote turn-on wire for voltage. Make sure Ground power and ground connector (supplied). With a small flat bladed screw driver, loosen the screws before attempting to insert the cables. Insert the wires into the
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© Your New! PCX™ amplifier has a TC-X Crossover (Total Control X-over ) 30- 1. Cooling Plenums: Maintain a minimum 2” clearance around cooling plenums 4kHz (See page 19 for crossover Detent Chart). 12dB per octave phase correlat- for proper amplifier cooling. ed crossover built in to provide superior system flexibility without the added 2. Crossover HP/LP/FULL Select Switch: Adjust this switch to select the expense and installation of an outboard crossover. The speaker outputs of HPF/LPF/FULLfu
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Run the speaker wires from the amplifier location through the vehicle to the There are two sets of RCA jacks on the front end of your amplifier. The RCA cables from your source unit go in the set labeled INPUTS. If your source unit doesn't speakers. Observe the same precautions for routing these wires that you followed have RCA outputs don't worry. Simply add a set of RCA plugs (available at your for running the power and remote turn-on wires. Cut o ff excess and, using wire strippers, strip 1/4
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The New! PCX™ amplifiers mass has been increased by 2 lbs. per linear foot over last year’s P O W E R C L A S S ™ amplifiers, resulting in far superior heat PCX 250 Power Panel dissipation. The unique heatsink on your PCX™ amplifier has been designed with 4 5 1 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
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The ability to run stereo speakers while simultaneously running a mono output Locate an area near the amplifier(s) that is metal and clean an area about the size from the same amplifier is accomplished by running the stereo speakers normally of a quarter to bare metal. Inspect the area around and underneath to be sure you and tapping into the appropriate wires for the "mixed mono" channel (left channel won't drill into wires, brake or fuel lines, etc. Drill a pilot hole in the middle of this pos
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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. Do not use smaller gauge wire. Total Amplifier RMS output x 2 = Total Input Wattage from car Total Input Wattage = Current Draw (in Amps) Supply Voltage Ex
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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. Optional QBASS REMOTE™ (PCX 280) This boost control can be mounted in the dash and will supersede the boost con- trol on the amplifier endplate. Q BASS™ Settings 1 2 Freq. IN IN 30Hz IN OUT 36Hz OUT IN 44Hz OUT OUT 60Hz Optional QBASS REMOTE™: This boost control can be mounted in the dash and
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Three-Year Limited U.S.A Warranty This warranty gives you specific legal rights, and you may also have other rights which vary from state And thank you for choosing PrecisionPower audio equipment. At PrecisionPower to state. PrecisionPower warrants its products to be free from defects in materials and workmanship we proudly design, engineer and manufacture audio products at our production under normal use and service for a period of three (3) years from the date of original purchase when the uni
