Table of Contents
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PowerCLASS
PC4200 / PC4400 / PC4800 / PC6600 OWNER'S MANUAL
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CONGRATULATIONS
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FEATURES / SPECIFICATIONS
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FEATURES / SPECIFICATIONS (cont.)
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INSTALLATION
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WIRING (continued)
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POWER / GROUND
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POWER, GROUND, and REMOTE
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REAR ENDPLATE DIAGRAMS
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FRONT ENDPLATE PC4200 / PC4400
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FRONT ENDPLATE PC4800
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FRONT ENDPLATE PC6600
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™
C O N T E N T S
(click on a topic to view)
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QBASS / QBASS REMOTE
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Input Combine / GAIN
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THERMAL MANAGEMENT
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TROUBLE SHOOTING
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System Diagram ONE / TWO
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SYSTEM DIAGRAM THREE
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SYSTEM DIAGRAM FOUR
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SYSTEM DIAGRAM FIVE
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SYSTEM DIAGRAM SIX
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Block Diagram 4200 / 4400
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BLOCK DIAGRAM 4800
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BLOCK DIAGRAM 6600
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WARRANTY
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Summary of Contents for Precision Power PowerClass PC4200
- Page 1 POWERCLASS PC4200 / PC4400 / PC4800 / PC6600 OWNER’S MANUAL • CONGRATULATIONS • FEATURES / SPECIFICATIONS • FEATURES / SPECIFICATIONS (cont.) • INSTALLATION • WIRING • WIRING (continued) • POWER / GROUND • POWER, GROUND, and REMOTE • SPEAKER WIRING •...
- Page 2 Congratulations and thank you... for choosing PrecisionPower audio epuipment. At PrecisionPower we proudly design, engineer and manufacture audio products at our facility in Phoenix, Arizona. Our award winning engineering team utilizes innovative technology to consistently deliver Absolutely State of the Art sound quality, reliability, and value.
- Page 3 Your new amplifier incorporates some or all of the following features: Adaptive MOSFET Switching Power Supply Fully Complementary Darlington Output Stage AP III Protection Circuitry (PC4200, PC4400, PC6800) AM IV Protection Circuitry (PC4800) QBASS ™ Bass Boost (PC4200, PC4400) QBASS PLUS ™ (PC4800, PC6600) QBASS REMOTE ™...
- Page 4 C r o s s o v e r S p e c i f i c a t i o n s PC4200 / PC4400 Front - 12dB/Octave, Detented High Pass 20-5kHz Rear - 12dB/Octave, Selectable Detented High or Low Pass 20-5kHz RCA Out-Summed Mono 24dB/Octave, Linkwitz-Riley Low Pass, 90Hz QBASS ™...
- Page 5 Tube of silicone sealant F u s e r e q u i r e m e n t s Amplifier PC4200 PC4400 PC4800 PC6600 You will need to install an in-line fuse or circuit breaker in the power wire within 18"...
- Page 6 The following is a basic formula to be used as a guide to determine current draw. A 50% amplifier efficiency rating is used as an average. Your new POWERCLASS be less. 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 7 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.
- Page 8 Grounding 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. Drill a pilot hole in the middle of this area.
- Page 9 Once the wires are secure, the PowerLock may be plugged into the amplifier. The Power/Ground PowerLock will accommodate 6 gauge wire for the PC4200 / PC4400 , and 4 gauge wire for the PC4800 and PC6600 . Power/Ground PowerLock...
- Page 10 PowerLock connector. Loosen the four outer screws on the underside of the connector and insert the front ( PC4200, PC4400 and PC4800 ) or sub ( PC6600 ) speaker leads into the end. Check to be sure you've maintained proper polarity before securing each wire.
- Page 11 BRIDGING B r i d g i n g ™ Any or all pairs of channels (front, rear or sub) on your POWERCLASS multi channel amplifier are capable of being bridged into a 4 ohm mono output without switches or bridging modules. This feature permits the creation of a mono channel for a subwoofer or center channel.
- Page 12 POWER / GROUND / PC4200 PC4400 PC4800 PC6600 1. POWER / GROUND PowerLock After you have securely connected your power and ground wires, plug in the Power / Ground PowerLock connector here. 2. COOLING VENTS (see page 18). 3. POWER / MUTE indicator A green light indicates that the amplifier is on, a red light indicates that the amplifiers muting circuits are engaged.
- Page 13 1. REAR HP/LP switch This switch is used to select whether the amplifier will provide a high pass (switch in) or low pass (switch out) signal to the rear speakers. (see page 16). 2. REAR GAIN Use this control to match the output level of the head unit to the rear channel of the amplifier (see page 18).
- Page 14 1. REAR LP FREQ. Use this control to adjust the rear low pass crossover frequency from 44Hz to 315Hz (see page 16). 2. REAR GAIN Use this control to match the output level of the head unit to the rear channel of the amplifier (see page 18).
- Page 15 1. FRONT GAIN Use this control to match the output level of the head unit to the front channel of the amplifier (see page 18). 2. REAR GAIN Use this control to match the output level of the head unit to the rear channel of the amplifier (see page 18).
- Page 16 There are two sets of RCA INPUTS on the front end of your amplifier. Plug the RCA cables from your head unit into the appropriate set of inputs, front and rear. If your head unit doesn't have RCA outputs don't worry. Simply add a set of RCA plugs (available at your dealer) to your front or rear set of speaker leads (see drawing below), plug them into the input jacks, and push in the -12dB switch.
- Page 17 The QBASS control is located to the left of the speaker outputs, and allows you to add up to 12dB of boost centered at 40Hz by rotating the control clockwise. Is a standard feature on the PC4200/PC4400 . ™ QBASS Q BASS PLUS ™...
- Page 18 See the frequency detent charts on page 17 to set your amplifier's crossover. PC4200 / PC4400 The front crossover is high pass and can be adjusted from 20Hz to 5kHz by turning the FRONT HP FREQ. control. If you need full-range, turn the control fully counterclockwise to the 20Hz position.
- Page 19 20Hz - 5kHz, and the controls are detented for accurate tuning. Each "click" counted from the full counterclockwise position corresponds to a specific frequency. Refer to this chart for set-up instructions. PC4200/PC4400 - Front HP & Rear Xover Freq. PC4800 - Front and Rear HP Freq. DETENT PC6600 - Front and Rear Xover Freq.
- Page 20 INPUT COMBINE and GAIN Input Combine Your multi channel POWERCLASS ™ amplifier can use both front and rear outputs from your head unit to maintain the ability to fade front to rear, or you can run a single set of RCAs to the front inputs and push in the COMBINE switch on the amplifier end plate to route the front signal to the rear channels as well.
- Page 21 FORCED AIR THERMAL MANAGEMENT To manage the additional heat associated with higher output capability, a thermally controlled fan has been designed into the PC4800 . When the heatsink temperature reaches a predetermined value, the fan is activated. Cool air is drawn in through the lower intake vents on the endplate.
- Page 22 NO SOUND Central Muting is engaged. Remote turn-on wire must have more than 8 volts to release central muting. Check Remote turn-on at the head unit. You may need to install a relay if the head unit doesn't put out sufficient voltage. STILL NO SOUND - See your Authorized PrecisionPower Dealer or Call 1-800-62 Power SOUND IN ONE CHANNEL ONLY...
- Page 23 SYSTEM DIAGRAM ONE / TWO Passive Tweeter Crossover MidRange Vo lu Po we PEQ-114 Preamp/Equalizer POWER CLASS PC4200, PC4400 or PC4800 Front High Pass 100Hz Passive Tweeter Crossover MidRange Vo lu Po we In- Cl PAR-245 Preamp/Equalizer Passive Tweeter Crossover...
- Page 24 Tweeter Crossover MidRange Passive Tweeter Crossover MidRange POWER CLASS ™ PC4200, PC4400 or PC4800 Front High Pass 88Hz Rear High Pass 88Hz Low Pass RCA Outputs (for constant sub) POWER CLASS ™ One or Two Channel Amplifier THREE Source Unit...
- Page 25 SYSTEM DIAGRAM Passive Tweeter Crossover PAR-245 Preamp/Equalizer MidRange Passive Tweeter Crossover MidRange POWER CLASS ™ PC4800 Front High Pass 320Hz Rear High Pass 320Hz RCA Output Low Pass 315Hz MidBass FOUR Source Unit eject Trk 1 BASS TREBLE BALANCE TRACK VOLUME LEFT RIGHT...
- Page 26 SYSTEM DIAGRAM PAR-245 Preamp/Equalizer DEQ-230 third octave EQ Passive Tweeter Crossover MidRange Passive Tweeter Crossover MidRange FIVE Source Unit eject Trk 1 BASS TREBLE BALANCE TRACK VOLUME LEFT RIGHT FOWARD REVERSE Vo lu Po we In- Cl Fa de De fe Su b Lo w Lo w-...
- Page 27 PMQ-210 Ten Band Parametric EQ POWER CLASS ™ Amplifier PC6600 Left Channel Passive Tweeter Crossover MidRange Passive Tweeter Crossover MidRange SYSTEM DIAGRAM Source Unit eject Trk 1 BASS TREBLE BALANCE TRACK VOLUME LEFT RIGHT FOWARD REVERSE Vo lu Po we In- Cl Fa de De fe...
- Page 28 BLOCK DIAGRAM 4200/4400 INPUT ATTENUATION...
- Page 29 BLOCK DIAGRAM 4800 INPUT ATTENUATION...
- Page 30 BLOCK DIAGRAM 6600...
- Page 31 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 to state. PrecisionPower warrants its products to be free from defects in materials and workmanship under normal use and service for a period of three (3) years from the date of original purchase when the unit is installed by an Authorized Dealer.
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