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Precision Power PC6800 manual

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Table of contents for the manual

  • Page 1

    Congratulations Cr ossover Settings Features / Specifications Inputs QB ASS PLUS TM Cr osso ver Operation Installation Input, Combine, and Gain Wiring T roubleshooting Wiring (continued) T roubleshooting P ower / Gr ound System Diagram 1 P ower , Ground and Remote System Diagram 2 Speaker Wiring System Diagram 3 Bridging System Diagram 4 Endplate D[...]

  • Page 2

    for choosing Precision P ower audio epuipment. At Precision P ower 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 TM performance, sound quality , reliability , and value. This Precisi[...]

  • Page 3

    PWM Switching Power Supply Fully Complementary T riple Darlington Output Stage AM IV Protection Circuitry QB ASS PLUS ™ QB ASS REMO TE ™ Compatible P ower Loc k Speaker and Power Wire Connectors V ariable, 6-Way Internal Crossover Non-Fading Sub Channels Balanced Differential Input Stage High V oltage Input Capability with Input Attenuation Swi[...]

  • Page 4

    Q BASS 0 +18 Q B ASS REMO TE ™ Designed and handcrafted in the USA ™ 2 QB ASS PLUS ™ Q B ASS PLUS ™ On POWER CLASS ™ amplifiers, we've taken bass control to a higher level with Q B ASS PLUS ™ . The two Q B ASS switches (labeled 1 and 2) on the front end of the amplifier allow you to select one of four frequency centers - 30 Hz, 36 [...]

  • Page 5

    3 T ools/P ar ts 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 -[...]

  • Page 6

    The following is a basic formula to be used as a guide to determine current draw . A 50% amplifier ef ficiency rating is used as an average. Y our new POWER CLASS ™ amplifier is more ef ficient, 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 [...]

  • 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 "Smoke y ." Reconnect the negative terminal only after all connections have been ma[...]

  • 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, etc. Drill a pilot hole in the middle of this area. T erminate the ground wire with a ring connector and attach it to the ba[...]

  • Page 9

    7 PO WER / GR OUND and REMO TE 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 P ower Loc k power and ground connector (supplied). With a small flat bladed screw d[...]

  • Page 10

    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 P ower Loc [...]

  • Page 11

    Bridging Any or all pairs of channels (1/2, 3/4 or 5/6) on your POWER CLASS ™ 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 accomplis[...]

  • Page 12

    10 ENDPLA TE DIA GRAM Pr o6800 - + POWER / MUTE Designed and Handcrafted in the U.S.A. Q B ASS 0 + 18 Q BASS REMOTE PC PRO 650 12/13/96 13 11 12 1. Q SELECT 4/2 Push this button in for a Q setting of 4 and out for a setting of 2. 2. Q BASS 1 Use this switch with the Q B ASS 2 to program the Q B ASS PLUS ™ circuit. (see page 2). 3. Q B ASS 2 Use t[...]

  • Page 13

    CONTROLS DIA GRAM ONE 11 X10 X10 Highpass and Lowpass crossover adjustments and GAIN controls for CHANNEL 3/4 allow for either Highpass, Bandpass or Lowpass. When LP/BP switch is 'OUT', Bandpass crossover adjustment (Channels 5/6, 12dB/octave) is the same as Channels 3/4 and Lowpass goes to RCA OUTPUTS. OR When LP/BP switch is pressed in [...]

  • Page 14

    12 CONTROLS DIA GRAM TWO COMBINE LP / BP X10 X10 X10 20Hz-2K 50Hz-500Hz 200Hz-20K 200Hz-20K 200Hz-20K CHANNEL 1 / 2 GAIN CHANNEL 3 / 4 GAIN CHANNEL 5 / 6 GAIN X10 200Hz-20K X10 200Hz-20K 24dB 12dB PSC 20Hz-2K 20Hz-2K 12dB 12dB 20Hz-2K 20Hz-2K 12dB 12dB Settings For A Basic 3 Way System plus Sub Output Example Crossover Points: Tweeters / Mid - 4 KH[...]

  • Page 15

    All 12dB /octave 20Hz - 21KHz HighP ass and BandP ass P osition X1-Out X10 - In 1 20 Hz 220 Hz 2 20 Hz 220 Hz 3 20 Hz 220 Hz 4 20 Hz 220 Hz 5 21 Hz 222 Hz 6 22 Hz 240 Hz 7 23 Hz 255 Hz 8 25 Hz 276 Hz 9 28 Hz 299 Hz 10 31 Hz 324 Hz 1 1 34 Hz 360 Hz 12 38 Hz 401 Hz 13 43 Hz 452 Hz 14 50 Hz 521 Hz 15 59 Hz 609 Hz 16 70 Hz 712 Hz 17 80 Hz 836 Hz 18 87 [...]

  • 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),[...]

  • Page 17

    The first row of controls on the top of your Pr o6800 allow you to send a variable highpass signal (20 Hz to 20 KHz) to Channels 1/2. (12dB/octave) With the X10 switch in the "out" position, crossover adjustment can be made by turning the highpass dial up or down for crossover points between 20 Hz and 2000 Hz. By pressing the X10 switch &[...]

  • Page 18

    INPUT COMBINE and GAIN Input Combine Y our multi channel POWER CLASS ™ 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 we[...]

  • Page 19

    17 TR OUBLE SHOO TING NO SOUND Is the LED lit? GREEN Substitute RCA inputs with another source, and connect a known good speaker to one channel. RED 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. Y ou may need to install a relay if the head unit doesn&apos[...]

  • Page 20

    18 TROUBLE SHOO TING AMPLIFIER TURNS DO WN Both excessive temperature and low impedance (or short circuit) conditions will activate the amplifier's AM IV protection circuitry , which turns down the amplifier's output. When the amplifier cools down, or the impedance is corrected, the AM IV will restore full power . If your amp is turning d[...]

  • Page 21

    19 SYSTEM DIA GRAM ONE eject VOLUME BASS TREBLE RIGHT LEFT BALANCE TRACK REVERSE FOWARD 1 2 3 4 8 7 6 5 PPI MAR KET ING DPT Trk 1 Source PEQ-114 DEQ-230 Channel 1 HighP ass Channel 2 HighP ass Channel 3 Highpass Channel 4 Highpass Subwoofer Basic System La yout R L Ground Remote Power Output stereo • out mono • in Input R L Defeat 10 KHz +12db [...]

  • Page 22

    20 SYSTEM DIA GRAM TWO Source P AR-245 DEQ-230 Pro6800 Channel 1 HighP ass Channel 2 HighP ass Channel 3 BandP ass Channel 4 BandP ass Subwoofer System La yout Using PSC Switc h PSC-221 eject VOLUME BASS TREBLE RIGHT LEFT BALANCE TRACK REVERSE FOWARD 1 2 3 4 8 7 6 5 PPI MAR KET ING DPT Trk 1 Precision Power PSC-221 Made in USA Power Phase Shift Con[...]

  • Page 23

    PC AMP 21 SYSTEM DIA GRAM THREE Source P AR-245 Pro6800 4 Ω SUB 4 Ω SUB Four -W ay System Lay out with MidBass Amp RCA Output Bandpass 12dB/Octav e MidBass Channel 4 BandP ass Midrange Channel 3 BandP ass Midrange eject VOLUME BASS TREBLE RIGHT LEFT BALANCE TRACK REVERSE FOWARD 1 2 3 4 8 7 6 5 PPI MAR KET ING DPT Trk 1 Channel 5/6 Lowpass Sub W[...]

  • Page 24

    22 SYSTEM DIA GRAM FOUR Source Pro6800 8 Ω SUB 8 Ω SUB PMQ-210 eject VOLUME BASS TREBLE RIGHT LEFT BALANCE TRACK REVERSE FOWARD 1 2 3 4 8 7 6 5 PPI MAR KET ING DPT Trk 1 Four -Wa y System Lay out using a separate PC amp f or Subs PC AMP PSC-221 Q 4 1.5 Q 4 1.5 Q 4 1.5 Q 4 1.5 Q 4 1.5 Q 4 1.5 Q 4 1.5 Q 4 1.5 Q 4 1.5 Q 4 1.5 PMQ-210 9.37KHz-15.75[...]

  • Page 25

    23 SYSTEM DIA GRAM FIVE eject VOLUME BASS TREBLE RIGHT LEFT BALANCE TRACK REVERSE FOWARD 1 2 3 4 8 7 6 5 PPI MAR KET ING DPT Trk 1 Source P AR-245 PMQ-210 Left Front HighPass 200W bridged Channels 1/2 4 Ω SUB 4 Ω SUB 4 Ω SUB 4 Ω SUB Pro6800 Pr o6800 2 Ω 400W bridged Channels 5/6 T wo Pr o6800 Amps bridg ed f or Left and Right channels Vol[...]

  • Page 26

    24 BLOCK DIA GRAM Pr o6800 Dif. INPUTS A L R OUTPUTS L R INPUTS B L R input combine in out in out 24 dB/octave Low Pass 50Hz - 500Hz Gain Adjust Gain Adjust Gain Adjust in out out in in out in out Inverter Inverter Inverter 12 dB/octave High Pass 20Hz - 2KHz x10 200Hz - 20KHz 12 dB/octave High Pass 20Hz - 2KHz x10 200Hz - 20KHz 12 dB/octave High Pa[...]

  • Page 27

    W ARRANTY Three-Y ear Limited U.S.A. W arranty This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Precision P ower 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 w[...]