POWERCLASS™ PC4200 / PC4400 / PC4800 / PC6600 OWNER’S MANUAL CONTENTS (click on a topic to view) • CONGRATULATIONS • FEATURES / SPECIFICATIONS • FEATURES / SPECIFICATIONS (cont.
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 performance, sound quality, reliability, and value.
FEATURES / SPECIFICATIONS 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™ Compatible (PC4800, PC6600) PowerLock Speaker and Power Wire Connectors Detented, Variable 3-way Internal Crossover Non-Fading Sub Channel Balanced Differential Inpu
FEATURES / SPECIFICATIONS Q BASS ™ and Q BASS PLUS ™ Specifications QBASS™ (PC 4200, PC4400, and PC 6600) Up to 12dB of Boost centered at 40Hz, with a Q-Factor of 2. QBASS PLUS™ (PC 4800) Up to 18dB of Boost with selectable center frequency at 30Hz, 36Hz, 44Hz or 60Hz. Selectable Q of 2 or 4. Optional remote mounted Boost Control. Optional QBASS REMOTE™ (PC 4800) This boost control can be mounted in the dash and will supersede the boost control on the amplifier endplate.
INSTALLATION Tools/Parts needed for Installation (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, and star washer) 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 - 16 gauge or larger Grommets (sized to work with the power
WIRING 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™ amplifier is more efficient, other amplifiers will probably 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. Do not use smaller gauge wire.
WIRING 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. Factory Ground wire may need to be replaced if it is frayed or broken.
POWER / GROUND 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. 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).
POWER / GROUND and REMOTE 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 of the power and ground cables approximately 1/4 inch. Locate the PowerLock 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 appropriate hole, and tighten the screws.
SPEAKER WIRING 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 off excess and, using wire strippers, strip 1/4 inch of insulation. Locate the speaker/remote turn-on PowerLock connector.
BRIDGING Bridging 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. Deriving the mono channel is accomplished by using the left channel positive wire of the pair as the positive speaker wire and the right channel negative wire as the negative speaker wire.
ENDPLATE DIAGRAMS POWER / GROUND / Q BASS ™ PC4200 POWER Designed and Handcrafted in the U.S.A. + 2 - 1 4 PC4400 POWER / MUTE Designed and Handcrafted in the U.S.A. + 2 - 1 3 PC4800 POWER / MUTE Designed and Handcrafted in the U.S.A. QBASS +18 0 5 + QBASS REMOTE 6 2 7 - 1 3 PC6600 POWER / MUTE Designed and Handcrafted in the U.S.A. QBASS 0 +18 5 + QBASS REMOTE 2 6 - 1 3 1.
ENDPLATE DIAGRAM 4200 / 4400 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). 3. QBASS™ Control Rotate clockwise to boost up to 12dB at 40Hz (see page 15). 4.
ENDPLATE DIAGRAM 4800 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). 3. FRONT GAIN Use this control to match the output level of the head unit to the front channel of the amplifier (see page 18). 4. QBASS 1 Use this switch with the QBASS 2 to program the QBASS PLUS™ circuit. (see page 15). 5.
ENDPLATE DIAGRAM 6600 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). 3. SUB GAIN Use this control to match the output level of the head unit to the sub channel of the amplifier (see page 18). 4. COOLING VENTS (see page 18). 5.
INPUTS 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.
Q BASS ™ and Q BASS REMOTE ™ QBASS™ For extra BOOM from your system, we've developed the QBASS™ bass control circuit. 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. QBASS™ QBASS™ Is a standard feature on the PC4200/PC4400 . QBASS PLUS ™ On PC4800 and PC6600 amplifiers, we've taken bass control to a higher level with QBASS PLUS ™.
CROSSOVER Operation Your new POWERCLASS™ amplifier has crossover circuits built-in to provide exceptional system flexibility without the added expense and installation of an outboard crossover. 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.
FREQUENCY DETENT CHARTS PC4200 / PC4400 / PC4800 / PC6600 The crossover frequency range of your new POWERCLASS™ amplifier goes from 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.
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. Adjusting The Amplifier Input Gain 1. Adjust all amplifier input gain controls to just above minimum sensitivity (fully counterclockwise). 2.
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. This cool air flows below the circuit board, through the fan and across the internal fins, cooling the heatsink. The heated air is then forced out through the upper endplate exhaust vents.
TROUBLE SHOOTING NO SOUND Is the LED lit? YES NO Check Power and Remote turn-on wire for voltage. Make sure Ground wire is secure. WHAT COLOR ? GREEN RED Substitute RCA inputs with another Central Muting is engaged. Remote source, and connect a known good turn-on wire must have more than 8 speaker to one channel. 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.
SYSTEM DIAGRAM ONE / TWO Tweeter Passive Crossover Passive Crossover Source Unit Tweeter eject BASS 1 2 3 4 5 6 7 8 VOLUME Trk 1 TREBLE BALANCE RIGHT LEFT PPI TRACK FOWARD MAR KET ING DPT REVERSE MidRange MidRange Sens Input itivity L R Outpu t L Precisi on PEQ-1 14 Power Volu me Powe R Input Power + r PEQ114 Made in + Sub USA + Low + Mid Treb le PEQ-114 Preamp/Equalizer Sub Sub POWERCLASS™ Amplifier PC4200, PC4400 or PC4800 Front High Pass 100Hz Rear Low Pass
SYSTEM DIAGRAM THREE Source Unit eject BASS 1 2 5 6 3 4 7 8 Trk 1 TREBLE BALANCE VOLUME PPI TRACK RIGHT LEFT FOWARD MAR KET ING DPT REVERSE R Input L R Rear Outpu t L t pu In ty vi ti si Sen Front Outpu t L R Precisi PAR-2 on 45 Power Volu me Powe r In-Cli 1 3 2 4 Sub + r Made + Defe Powe r st High-M id R Fade ct y Adju Low-M id F p LED Sele Frequenc Low at + Sub Treble in USA + Low + Low- Mid High -Mid Treb le PAR- 245 PAR-245 Preamp/E
SYSTEM DIAGRAM FOUR Source Unit eject BASS 1 2 5 6 3 4 7 8 Trk 1 TREBLE BALANCE VOLUME PPI TRACK RIGHT LEFT FOWARD MAR KET ING DPT REVERSE R Input L R OutpRear ut L t pu In si Sen ti vi ty Front Outpu t L R Precis PAR245ionPower Volu me Powe r 1 3 2 4 Sub Frequenc id R ip + Fade r at + Sub Tweeter Passive Crossover High-Mid Power Treble Made in USA + Defe ct st Low-M F In-Cl LED Sele y Adju Low + Low + Low -Mid High -Mid Treb le PAR245 PA
SYSTEM DIAGRAM FIVE Source Unit eject BASS 1 2 5 6 3 4 7 8 Trk 1 TREBLE BALANCE VOLUME FOWARD MAR PPI TRACK RIGHT LEFT KET ING DPT REVERSE Input R L R Rear Outpu t L t pu In ty vi ti si Sen Front Outpu t L R Precisi PAR-2 on 45 Power Volu me Powe r 1 2 3 4 Sub Powe r st + Fade r ct y Adju Low-M id High-M id R p LED Sele Frequenc Low F In-Cli Made + Defe at + Sub Treble in USA + Low + Low- Mid High -Mid Treb le PAR- 245 PAR-245 Preamp/Equalize
SYSTEM DIAGRAM SIX Source Unit eject BASS 1 2 5 6 3 4 7 8 Trk 1 TREBLE BALANCE VOLUME FOWARD MAR PPI TRACK RIGHT LEFT KET ING DPT REVERSE Input R L R Rear Outpu t L pu In t Sen ty vi ti si Front Outpu t L R Volu Precisi PAR-2 on 45 Power me Powe r 1 3 2 4 Sub + Fade r Defe Powe r st High-M id R p ct y Adju Low-M id F In-Cli LED Sele Frequenc Low Made + at + Sub Treble in USA + Low Low- + Mid High -Mid Treb le PAR- 245 -12db Cu t/ -12db
RCA Rear Right Input RCA Rear Left Input RCA Front Right Input RCA Front Left Input DIF. DIF.
RCA Rear Right Input RCA Rear Left Input RCA Front Right Input RCA Front Left Input DIF. DIF.
RCA Rear Right Input RCA Rear Left Input RCA Front Right Input RCA Front Left Input DIF. DIF.
WA R R A N T Y 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.
