POWERCLASS™ PC2400 / PC2600 / PC21400 OWNER’S MANUAL CONTENTS (click on a topic to view) CONGRATULATIONS INPUTS FEATURES / SPECIFICATIONS CROSSOVER/GAIN CONTROL QBASS PLUS THERMAL MANAGEMENT INSTALLATION TROUBLE SHOOTING WIRING SYSTEM DIAGRAM ONE WIRING (continued) SYSTEM DIAGRAM TWO POWER / GROUND SYSTEM DIAGRAM THREE POWER, GROUND, and REMOTE SYSTEM DIAGRAM FOUR REAR ENDPLATE DIAGRAM BLOCK DIAGRAM FRONT ENDPLATE DIAGRAM ADDENDUM SPEAKER WIRING WARRANTY
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 Adaptive MOSFET Switching Power Supply Fully Complementary Triple Darlington Output Stage AM IV Protection Circuitry QBASS PLUS™ Bass Boost QBASS REMOTE™ Compatible Advanced Buss Technology Forced Air Thermal Management Two-Way 24dB/Octave Linkwitz-Riley 90Hz Crossover Crossover Line Outputs Balanced Differential Input Stage High Voltage Input Capability with Input Attenuation Switch Gold Plated RCA Input and Output Connectors PowerLock Speaker and Power Wire Connectors Mixed Mono/
QBASS PLUS ™ Q BASS PLUS ™ On PC2400, PC2600 and PC21400 amplifiers, 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. The Q SELECT switch determines the width of boosted frequencies. A 'Q' of 2 (switch out) will give you a wide boost while a 'Q' of 4 will boost a narrow range of frequencies (See chart below).
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 3 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.
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, 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).
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.
ENDPLATE DIAGRAM 2400 / 2600 / 21400 1. QBASS REMOTE™ plug in Plug in the data cable from the optional QBASS REMOTE™ dash mount level control here. (This will bypass the amplifier's on board QBASS control) 2. COOLING VENTS (see page 13). 3. POWER / GROUND POWERLOCK After you have securely connected your power and ground wires, plug in the Power / Ground POWERLOCK connector here (see page 7). 4. POWER indicator A green light indicates that the amplifier is on. 5.
ENDPLATE DIAGRAM 2400 / 2600 / 21400 1. FRONT INPUTS Plug in the RCA leads from your head unit here (see page 11). 2. GAIN Use this control to match the output level of the head unit to the amplifier (see page 12). 3. 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 speakers. (see page 12). 4. QBASS 1 Use this switch with the QBASS 2 to program the QBASS PLUS™ circuit. (see page 2). 5.
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. Loosen the four outer screws on the underside of the connector. Insert the speaker leads into the end.
INPUTS There are two sets of RCA jacks on the front end of your amplifier. The RCA cables from your head unit go in the set labeled INPUTS. 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 input attenuation switch.
CROSSOVER and GAIN CONTROL Crossover Your new POWERCLASS ™ amplifier has a 90Hz fourth-order Linkwitz-Riley type, 24dB per octave phase correlated crossover built in to provide system flexibility without the added expense and installation of an outboard crossover. The speaker outputs of your amplifier are high pass or low pass according to the HP/LP switch on the front endplate.
THERMAL MANAGEMENT Heatsink Cooling The unique heatsink on your POWERCLASS™ amplifier has been designed with fins on the inside of the aluminum mass. 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.
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. STILL NO SOUND - See your Authorized PrecisionPower Dealer or call 1-800-62POWER. SOUND IN ONE CHANNEL ONLY Reverse left and right speakers by unplugging the speaker connector, turning it over and plugging it back in. SOUND IS NOW IN SAME CHANNEL Problem is in the speaker or speaker wire of the silent channel.
SYSTEM DIAGRAM ONE Source Unit eject BASS LEFT Tweeter 1 2 5 6 3 4 7 8 Trk 1 TREBLE BALANCE VOLUME TRACK RIGHT FOWARD PPI MAR KET ING DPT REVERSE Passive Crossover Passive Crossover MidRange Tweeter MidRange POWERCLASS™ Amplifier Crossover Off Passive Crossover Subwoofer Mixed Mono Output The ability to run stereo speakers while simultaneously running a mono output from the same amplifier is accomplished by running the stereo speakers normally and tapping into the appropriat
SYSTEM DIAGRAM TWO Source Unit eject BASS LEFT Tweeter 1 2 5 6 3 4 7 8 Trk 1 TREBLE BALANCE VOLUME TRACK RIGHT FOWARD PPI MAR KET ING DPT REVERSE Passive Crossover Passive Crossover MidRange Tweeter MidRange POWERCLASS™ Amplifier High Pass 90Hz Low Pass Out to Sub Amplifier Subwoofer Subwoofer POWERCLASS™ Amplifier Crossover off or Low Pass 16 BACK TO CONTENTS
SYSTEM DIAGRAM THREE Source Unit eject BASS 1 2 5 6 4 7 8 Trk 1 PPI TRACK RIGHT LEFT 3 TREBLE BALANCE VOLUME FOWARD MAR KET ING DPT REVERSE Input R L R OutpRear ut L t pu In ty vi ti si Sen Front Outpu t L R Precis PAR-2 ion 45 Power Volu me Powe r In-Cli p 1 2 3 4 Sub Low-M id R + Fade r at High-M id ct Power Treble Made in USA + Defe LED Sele Frequenc y Adju st Low F + Sub + Low + LowMid High -Mid Treb le PAR245 PAR-245 Preamp/Equalizer Front Ou
SYSTEM DIAGRAM FOUR Source Unit eject BASS 1 2 5 6 3 4 7 8 Trk 1 TREBLE BALANCE VOLUME FOWARD R Input MAR PPI TRACK RIGHT LEFT KET ING DPT REVERSE L R OutpRear ut L t pu In ty vi ti si Sen Front Outpu t L R Precis PAR-2 ion 45 Power Volu me Powe r Low-M id High-M id R p + Fade r at Treble Made in USA + Defe Power Frequenc y Adju st Low F In-Cli LED Sele ct 1 2 3 4 Sub + Sub + Low + Low- Mid High -Mid Treb PAR- 245 14K Hz23.
RCA Right Input RCA Left Input DIF. DIF.
POWERCLASS ADDENDUM Your new amplifier may have been updated to include a variable detented crossover in place of the Q 4/2 function switch. The crossover is adjustable from 20 Hz to 5 kHz. Please refer to the endplate diagram and detent chart provided for frequency adjustments. The XOVER FREQ control has detents, or “clicks” as you rotate it. Each "click" counted from the full counterclockwise position corresponds to a specific frequency. This will add more accurate tuning to your system.
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.
