TM POWERCLASS PC6800 Owners Manual CONTENTS (Click on a topic to view) Congratulations Crossover Settings Features / Specifications Inputs TM QBASS PLUS Crossover Operation Installation Input, Combine, and Gain Wiring Troubleshooting Wiring (continued) Troubleshooting Power / Ground System Diagram 1 Power, Ground and Remote System Diagram 2 Speaker Wiring System Diagram 3 Bridging System Diagram 4 Endplate Diagram System Diagram 5 Controls Diagram 1 Block Diagram Controls Diagram
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 PWM Switching Power Supply Fully Complementary Triple Darlington Output Stage AM IV Protection Circuitry QBASS PLUS™ QBASS REMOTE™ Compatible PowerLock Speaker and Power Wire Connectors Variable, 6-Way Internal Crossover Non-Fading Sub Channels Balanced Differential Input Stage High Voltage Input Capability with Input Attenuation Switch Gold Plated RCA Input and Output Connectors Mixed Mono/Stereo Operation Multiple System Configuration PSC-221 Input Switching Three Year Warranty w
QBASS PLUS ™ Q BASS PLUS ™ On POWERCLASS™ 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 - 30 Hz, 36 Hz, 44 Hz and 60 Hz. 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. 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, 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.
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 top of the connector and insert the Channels 5/6 speaker leads into the end.
BRIDGING Bridging Any or all pairs of channels (1/2, 3/4 or 5/6) on your POWERCLASS™ multi channel amplifier are capable of being bridged into a 4 ohm mono output without switches or bridging modules (2 ohm mono on Channels 5/6). 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 DIAGRAM Pro6800 1. Q SELECT 4/2 Push this button in for a Q setting of 4 and out for a setting of 2. 2. QBASS 1 Use this switch with the QBASS 2 to program the QBASS PLUS™ circuit. (see page 2). 3. QBASS 2 Use this switch with the QBASS 1 to program the QBASS PLUS™ circuit. (see page 2). 4. COOLING VENTS (see page 16). 5. SPEAKER/REMOTE CONNECTOR After connecting remote and speaker wires, plug in the PowerLock connectors here (see pages 7-9). 6. -12dB For use with high level inputs (4V up to 12V).
20Hz-2K X10 200Hz-20K 12dB 12dB 12dB LP / BP X10 200Hz-20K X10 200Hz-20K COMBINE switch: Switch pushed 'IN' connects the rear channels to the Inputs A. Switch 'OUT' allows front-to-rear fading. PSC: Push this switch "IN" to use a PSC-221 on channels 3/4. (COMBINE switch out) PSC 20Hz-2K X10 200Hz-20K COMBINE 20Hz-2K X10 200Hz-20K 24dB 12dB 12dB Highpass and Lowpass crossover adjustments and GAIN controls for CHANNEL 3/4 allow for either Highpass, Bandpass or Lowpass.
(RCA outputs) 70 Hz 11 20Hz-2K 21 41 IIIIIIII III I 1 Switch Pushed "IN" LP / BP X10 200Hz-20K X10 200Hz-20K 11 11 11 II II III III I 1 21 41 20Hz-2K IIII I 20Hz-2K 21 41 IIIIIIII III I 1 21 IIIIIIII Mid Range 1 41 50Hz-500Hz 32 32 32 24dB 12dB 12dB 4 KHz 20 KHz CHANNEL 5 / 6 GAIN CHANNEL 3 / 4 GAIN CHANNEL 1 / 2 GAIN Tweeters Count 9 "clicks" starting from 1 to get to 73 Hz Count 14 "clicks" starting from 1 to get to 521 Hz Count 31 "clicks" starting from 1 to get to
CROSSOVER SETTINGS All 12dB/octave 20Hz - 21KHz HighPass and BandPass Position X1-Out X10 - In 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 20 Hz 20 Hz 20 Hz 20 Hz 21 Hz 22 Hz 23 Hz 25 Hz 28 Hz 31 Hz 34 Hz 38 Hz 43 Hz 50 Hz 59 Hz 70 Hz 80 Hz 87 Hz 94 Hz 99 Hz 107 Hz 117 Hz 128 Hz 140 Hz 155 Hz 173 Hz 193 Hz 220 Hz 255 Hz 310 Hz 385 Hz 492 Hz 608 Hz 744 Hz 936 Hz 1.19 KHz 1.45 KHz 1.77 KHz 2.08 KHz 2.10 KHz 2.
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.
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. CHANNELS 1/2 The first row of controls on the top of your Pro6800 allow you to send a variable highpass signal (20 Hz to 20 KHz) to Channels 1/2.
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 INPUT A signal to channels 3/4 as well. PSC Switch Channels 5/6 will be used as subwoofer channels in most cases, and therefore receive summed information from Inputs A and B.
TROUBLE SHOOTING NO SOUND Is the LED lit? YES NO Check Power and Remote turnon wire for voltage. Make sure Ground wire is secure. WHAT COLOR ? GREEN RED Substitute RCA inputs with Central Muting is engaged. Remote turn-on wire must have another source, and connect a known good speaker to one more than 8 volts to release channel. 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.
TROUBLE SHOOTING NO SOUND ON BANDPASS CHANNELS Be sure that crossover points are set properly. Is the highpass set at a higher frequency than the lowpass or the lowpass set lower than the highpass, creating a no pass? NO YES Check speaker wiring for short circuits or loose connections. Be sure that powerlock plugs are in place properly (screws facing up) and observe correct wiring diagram. Readjust crossovers and then test system again.
SYSTEM DIAGRAM ONE Source eject BASS 1 2 5 6 4 7 8 Trk 1 FOWARD Input Sensitiv ity MAR PPI TRACK RIGHT LEFT PEQ-114 3 TREBLE BALANCE VOLUME KET ING DPT REVERSE R Input L R Output L PEQ-Pre11cisionPower 4 Vol ume Powe Power + r PEQ -114 Made in USA + Sub + Low + Mid Treb le in USA 12. 8 KH z Made 16 6.4 -12db KH z KH z +12d b zer e Equali Octav 20 +12d b 10 -12db KH z -12db +12d b +12d b KH z 1.
SYSTEM DIAGRAM TWO Source 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 L R R OutpRear ut L In pu t Se ty vi ti nsi Front Outp ut L R PAR-245 Precis PAR245ionPower Vol ume Powe r 1 2 3 4 Sub id + Fade r ct Power Low-M High-Mid R ip LED Sele Frequenc y Adju st Low F In-Cl at Treble Made in USA + Defe + Sub + Low + Low -Mid High -Mid Treb le PAR- 245 PSC-221 in USA 12.
SYSTEM DIAGRAM THREE Source eject BASS 1 2 5 6 3 4 7 8 Trk 1 TREBLE BALANCE VOLUME PPI TRACK RIGHT LEFT FOWARD R Input MAR KET ING DPT REVERSE L R OutpRear ut L t pu In ty vi ti nsi Se Front Outp ut L R PAR-245 Precis PAR245ionPower Vol ume Powe r 1 2 3 4 Sub id + Fade r ct Power Low-M High-Mid R ip LED Sele Frequenc y Adju st Low F In-Cl Defe at Treble Made in USA + + Sub + Low + Low -Mid High -Mid Treb le PAR245 IN GA /2 L1 IN GA /4 L3
SYSTEM DIAGRAM FOUR Source PSC-221 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 100 -ø Rig ht Po w er 600 220 o 100 -ø Cu t/ 1.5 Q Bo ost L 4 Le ft Ph as e 14K Hz -23.3 7K Hz H Q L 9.3 7K Hz -15.7 5K Hz H 4K Hz -9. 37K Hz H L +12 db 4 1.9 5K Hz -4. 5Kh z L +12 db 4 Cu t/ -12db 1.5 Bo ost Q H 940 Hz -1. 25K Hz Cu t/ -12db Bo ost 1.5 Q H L +12 db 4 Cu t/ -12db Bo ost 1.
SYSTEM DIAGRAM FIVE Source 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 R Input L In R OutpRear ut L pu t Se ty vi ti nsi R Front Outp ut L PAR-245 Precis PAR245ionPower Vol ume Powe r 1 2 3 4 Sub Low-M id High-Mid R ip + Fade r LED Sele ct Power Frequenc y Adju st Low F In-Cl + Defe at Treble Made in USA + Sub + Low + Low -Mid High -Mid Treb PAR- 245 -12db Cu t/ -12db 10 Band
R INPUT ATTENUATION OUTPUTS L R INPUTS B L R INPUTS A L in out in out Dif. Dif. 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.