Precision Power PC6800 User's Manual
Contents
1. 1 1 1 1 1 Bupe 1e91 01 1u04J YOUMS Sinduj eui eui sjoeuuoo NI YAMS YOUMS 3NISINOO ino uouws 3NISINOO 2 sjeuueuo uo 122 0 esn 0 NI YOUMS usng 21 ST3NNVHO 10 03009 NIVO pue o eioo gpz 191088049 SSEdUBIH 77 T 11 sindino Jeyeeds ye esuodsai sindino you ZH 0c ZHJ ZH 129 2H 04 ZH 0c SjejooM Sseg PIN ans LU z x o lt tc ZH Z 01196 04 5 SY19 6 Juno HEIS S9010 6 NOO z m T peusnd yous N n ZH LZS 01196 0 T Bues 501 y UNOD peusnd uos peii tins ZH 07 91196 SYO 9 JUNOD o e X iat ZH 125 01196 Bures 5010 PE JUNOO l uos Li ZH 03196 04 Woy Bures Sxoio LE JUNCD peusn ZHM 01198 Woy LE UNOD ZH OZ ans SSeqpiN ZH 129 SSEQpIIN PIN ZHM PIN 5 19 088015 indino qns snid 524 104 CROSSOVER SETTI2. Sseg MOT BAEIOO ED 1 sseg MO 21 sseq enapojgp ZL 2 0 ZH00Z 2 0 29002 01 euiquioo indui 1 T3NNVHO SSEd MO ZL ssed 21 7HX02 2 00 01X ZH0Z INPUT ATTENUATION sseg 2 2 0 290020 sed zi SLAdLNO 8 SLNdNI Y SLNdNI BACK TO CONTENTS WARRANTY iT _ 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 Non Authorized Dealer installed products carry a one 1 year parts and ninety 90 days labor limited warranty The extent and conditions of Limited Warranty are as follows 1 Authorized Dealer Installed Products PrecisionPower will either repair or replace at no charge to the original purchaser any unit which PrecisionPower s examination discloses to be defective and under warranty provided the defect occurs within three
3. and connect a more than 8 volts to release known goga speaker to one central muting Check Remote channel turn on at the head unit You need to install a relay if the hea unit doesn t put out sufficient voltage 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 over and plugging it back in OPPOSITE CHANNEL SAME CHANNEL Reverse RCA inputs Problem is in the speaker or speaker wire of the silent channel SOUND IS NOW IN OPPOSITE CHANNEL SAME CHANNEL Reverse RCAs at head unit Problem is in the Amp See your local Authorized PrecisionPower Dealer call 1 800 62POWER SOUND IS NOW IN OPPOSITE CHANNEL SAME CHANNEL Problem is in the head unit Problem is in the RCA cables 17 BACK TO CONTENTS TROUBLE SHOOTING O 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 YES NO Readjust crossovers and then Check speaker wiring for short test system again circuits or loose connections Be sure that powerlock plugs are in place properly screws facing up and observe correct wiring diagram STILL NO SOUND See your Authorized PrecisionPower Dealer or Call 1 800 62POWER NO SOUND IN BRIDGED MODE Check speaker wiring fo
4. 3 years from the date of original purchase when the unit is installed by an Authorized Dealer and the product is returned immedi ately to PrecisionPower This warranty is not transferable 2 Non Authorized Dealer Installed Products PrecisionPower will either repair or replace at no charge to the original purchaser any unit which PrecisionPower s examination discloses to be defective and under warranty provided the defect occurs within ninety 90 days from the date of purchase and the product is returned immediately to PrecisionPower Warranty claims beyond ninety 90 days for Non Authorized Dealer Installed Products will be for parts only and will extend for one 1 year from the date of purchase This warranty is not transferable 3 The date of purchase and proof of Authorized Dealer Installation of a PrecisionPower product must be established by an original sales receipt which must accompany the article being re turned for warranty work 4 This warranty shall NOT apply to any PrecisionPower product found to have the original fac tory serial number removed or defaced All products received by PrecisionPower for in war ranty or out of warranty repair with their original serial numbers removed or defaced will NOT be repaired and will be returned to sender freight collect Refer to original packaging for the serial number of your component speakers 5 The provisions of this warranty shall not apply to any PrecisionPower product used
5. for a purpose for which it is not designed which has been repaired or altered in any way or which has een connected installed or adjusted other than in accordance with the instructions furnished in PrecisionPower s owner s manual Nor shall this warranty apply to any part which has been subject to misuse neglect or accident 6 PrecisionPower does not authorize any other persons to assume any other liability in connec tion with its products THIS WARRANTY IS THE ONLY EXPRESS WARRANTY MADE BY PRECISIONPOWER APPLICABLE TO ITS PRODUCTS ANY IMPLIED WARRANTY OR MER CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE APPLICABLE TO PRECISIONPOWER PRODUCTS IS LIMITED IN DURATION TO THE DURATION OF THIS LIMITED WARRANTY PRECISIONPOWER SHALL NOT BE LIABLE FOR THE INCIDENTAL CONSEQUENTIAL OR COMMERCIAL DAMAGES RESULTING FROM THE BREACH OF THIS WRITTEN WARRANTY Some states or provinces do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts so the above limitations or exclusions may not apply to you 7 Your product will be serviced on an in warranty basis within the warranty period for the correc tion of warranted defects If improper operation of your PrecisionPower product should occur contact your Authorized Dealer for assistance with the return and factory repair of your PrecisionPower product If an Authorized Dealer is not available return the unit including your na
6. of the speaker wires into the end Double check polarity secure each wire by tightening the screws and plug the PowerLock connector into the amplifier with the screws on top 8 BACK TO CONTENTS 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 My 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 You should always be working with the wires of a single POWERLOCK speaker connector when bridging a pair of channels NOTE is important that a minimum 4 ohm impedance is observed 2 ohm mono on Channels 5 6 If the impedance drops significantly below 4 ohms while the amplifier is wired in the bridged configuration the amplifier s protection circuitry may engage Mixed Mono Output The ability to run stereo speakers while simultaneously running a mono output from the same channel pair is accomplished by running the stereo speakers normally and tapping into the appropriate wires for the mixed mono channel left channel positive for the positive speaker wire and right channel negative for the negative speaker wire To
7. this circuitry It provides all the benefits of a true balanced line without the need of any special cables see diagram below This type of input works with any conventional RCA cable nlii music noise CY signal and ground 7 music noise music and noise music noise MM H noise 7 noise cancels NO noise BACK TO CONTENTS 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 12dB octave With the X10 switch in the out poo crossover adjustment can be made by turning the ighpass dial up or down for crossover points between 20 Hz and 2000 Hz By pressing the X10 switch in you are able to make crossover adjustments between 200 Hz and 20 KHz A separate gain control is designated for these channels and should be adjusted according to page 16 CHANNELS 3 4 nli The second row of controls on the top of your Pro6800 allow you to send a variable highpass or bandpass signal 20 Hz to 20K Hz to Channels 3 4 These controls operate in the same fashion as above The first set of controls are the highpass side of the bandpass and the second set of controls are the lowpass si
8. wire from the battery to the amplifier s in addition to your regular ground wire Keep the ground and power wires as close together as possible and use the same gauge wire for both This will ensure that you have a good ground path and may eliminate such potential problems as engine noise and overheated amplifiers Charging System Considerations If your grand total current draw is over 100 amps or total output power is over 600watts you are probably exceeding the capability of your charging system Dimming lights and fluctuating voltage are solid indicators that you need to upgrade your alternator battery or go to multiple batteries or both Keep in mind that your amplifiers simply convert electrical energy to acoustical energy and any electrical deficiency will compromise the performance of your sound system For more information about charging system upgrades see your local authorized PrecisionPower Dealer or call PrecisionPower technical support at 1 800 62POWER 6 BACK TO CONTENTS yl POWER GROUND and REMOTE Once you have run both the power 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 a
9. 5 Hz 100 kHz Total Harmonic Distortion 0 02 Input Topology Differential Input Sensitivity 150mv 12 volts RMS Input Impedance 10k Ohms Load Impedance stereo 2 8 Ohms Load Impedance bridged Load Impedance bridged 4 8 Ohms Channels 1 4 2 8 Ohms Channels 5 6 Supply Voltage 11 15 volts Damping Factor gt 500 Slew Rate gt 50 V uS Idle Current 2 25 Amps Continuous Output Power my yi CHANNELS 1 2 50 WRMS x2 40 per channel 100 WRMS x 2 20 per channel 200 WRMS x 1 40 bridged CHANNELS 3 4 50 WRMS x2 40 per channel 100 WRMS x 2 20 per channel 200 WRMS x 1 40 bridged CHANNELS 5 6 50 WRMS x2 4Q per channel 100 WRMS x 2 20 per channel 200 WRMS x 2 9 10 per channel 200 WRMS x 1 40 bridged 400 WRMS x 1 20 bridged 1 Length 25 25 Height 2 25 Width 8 9 BACK TO CONTENTS QBASS PLUS QBASS PLUS m i On POWERCLASS we ve taken bass control to a higher level with QBASS PLUS The two QBASS switches labeled 1 and on 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 D out will give you a wide boost while a Q of 4 will boost a narrow range of frequencies See chart below On the rear end panel you will find the QBASS level control and the plug in for an optional QBASS REMOTE dash mounted le
10. NGS 12dB octave 20Hz 21KHz mono LowPass HighPass and BandPass E Position X1 Out X10 In Position Frequenc 6 8 25 _ A 02 02 Co DP N 2 o IN D BIC CO JN O Co PO OO NI O WIN 5 irs O 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 12dB switch SOURCE Headunit A RIGHT input Negative WARNING f you are using a source unit with bridged high powered or floating ground speaker outputs a suitable high to low level adapter must be used If you are unsure about your head unit see your local PrecisionPower dealer or call 1 800 62Power Balanced Differential Inputs This circuitry reduces noise radiated into your signal cables by up to 40aB This is equivalent to a noise reduction of approximately one hundred times what the noise level would be without
11. POWERCLASS PC6800 Owners Manual 5 Click on a topic to view Crossover Settings Congratulations Inputs lt Features Specifications rl Crossover Operation PLUS Installation i Input Combine and Gain Wiring i Troubleshooting Wiring continued 4 Troubleshooting Power Ground System Diagram 1 li Power Ground and Remote System Diagram 2 System Diagram 3 Speaker Wiring fl System Diagram 4 ww Bridging System Diagram 5 ofl Endplate Diagram Block Diagram Controls Diagram 1 Warranty li Controls Diagram 2 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 This PrecisionPower product reflects our commitment to offer you unparalleled versatility and quality for years of dependable service and listening enjoyment Do not attempt to service PrecisionPower products yourself Performing exploratory surgery on your audio equipment yourself Will void the warranty Many parts of your PrecisionPower gear are custom built to our specifications Our factory part
12. de of the bandpass In order to get a full highpass to 20 KHz press the second X10 switch in and turn the second lowpass dial fully clockwise to 20 KHz position CHANNELS 5 6 The third row of controls on the top of your Pro6800 operate in the same fashion as Channels 3 4 crossovers However you have one more option on these channels you can select a bandpass crossover bandpass 2 third row or lowpass fourth row By leaving the LP BP switch out the bandpass 2 signal will be assigned to CHANNEL 5 6 and lowpass assigned to the RCA outputs By pressing the LP BP switch in the lowpass fourth row will be assigned to CHANNEL 5 6 and bandpass 2 assigned to the RCA OUTPUTS The lowpass dial can be from 50 Hz to 500 Hz and provides a 24dB octave slope My My 15 BACK TO CONTENTS 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 gt Channels 5 6 will be used as subwoofer channels in most cases and therefore receive summed information from Inputs A and B This allows Front Rear d affecting the subwoofer level In order to use a PSC 221 phase shift controller on bandpassed midrange drivers C
13. hannel 3 4 without causing cancellation in your subwoofer channels you can VA d Inputs B to Channel 3 4 only by pushing the PSC switch IN Adjusting The Amplifier Input Gain 1 Adjust all amplifier input gain controls to just above minimum sensitivity fully counterclockwise 2 Using the cleanest source CD with music playing turn up the head unit until you can hear distortion Now turn it down a bit until you cannot hear the distortion 3 Increase the Amplifier gain clockwise until the onset of audible distortion Then decrease the gain to the point just before the distortion starts This setting minimizes background noise and prevents overload 4 Repeat step 3 for any remaining amplifiers in the system Heatsink Cooling The unique heatsink on your POWERCLASS amplifier hi A has been designed with fins ll on the inside of the aluminum gt mass This allows for the 4 transfer of heat from the circuitry to the heatsink fins NY 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 BACK TO CONTENTS nli A yi nlii 16 TROUBLE SHOOTING O NO SOUND Is the LED lit YES NO Check Power and Remote turn on wire for voltage Make sure Ground wire is secure gt WHAT COLOR 2 RED GREEN Central Muting is engaged Substitute RCA inputs with Remote turn on wire must have another source
14. improve the current transfer of your system Do not use smaller gauge wire Total RMS output x 2 Total Input Wattage Total Input Wattage Current Draw in Amps Supply Voltage Example A POWERCLASS Pro6800 amplifier has six channels at 50 watts RMS per channel into 4 Ohms 50 x 6 300 You would use the formula in the following way 300W x 2 600W 600W _ 50A Total current draw 12V If the same amplifier is driven into 2 Ohm stereo or 4 Ohm mono load double it s 4 Ohm RMS rating All POWERCLASS amplifiers will effectively double their power at this load 300W x 2x 2 2 1200W 1200W _ 100A Total current draw 12V If you are using more than one amplifier add up the total current draw for all of them and choose the appropriate gauge based on the grand total Power Wire Calculator Recommended MINIMUM Gauge ghi li i Total Current Draw Length Of Wire To Be Run Up to 4ft 41071 7to10ft 10to 13ft 1310 161 1610 19ft 19 to 22ft 22 to 281 12 10 NOTE The ground wire should be the same gauge as the power wire 4 BACK TO CONTENTS 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
15. indicator A green light indicates that the amplifier is on a red light indicates that the amplifier s muting circuits have been engaged by an ACM 420 11 QBASS Level Turn this control clockwise to boost the QBASS PLUS circuit by up to 18dB 12 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 13 POWER GROUND POWERLOCK After you have securely connected your power and ground wires plug in the Power Ground POWERLOCK connector here Ml CHANNELS 3 4 L R R 1 MI 12 ES 9 Q SELECT 4 2 QBASS INPUTS A INPUTS B 202000000111 PrecisionPower POWER Designed and Handcrafted in the U S A 1 BACK TO CONTENTS ww llli QBASS CONTROLS DIAGRAM pessedpueg SINdLNO vou pue SSedM07 aq 9 G ui pesseJd SI YOUMS dg d1 s806 ssedwo pue se eui S e ejoo gpz 9 G ssedpueg LNO SI UNMS dg d 1 UUM ssedmo7 10 ssedpueg yy 10 6 1HNNVHO 40 NI VO pue sjueuujsn pe ssedmo7 pue sseduybiH I Li 1
16. ips 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 wire you plan to use in your installation Tube of silicone sealant Fuse requirements nlii Amplifier Maximum Fuse Rating Pro6800 80 Amp You will need to install an in line fuse or circuit breaker in the power wire within 18 of the battery This fuse or circuit breaker is to protect your vehicle from fire in case the power wire shorts to the vehicle body If you are only using one amplifier use the fuse rating indicated in this chart If you are using more than one amplifier add up the fuse ratings for all the amplifiers This sum is the rating for your fuse or circuit breaker You may also want to add a power distribution block near your amplifiers to keep the wiring tidy BACK TO CONTENTS Co 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
17. me telephone number return address a copy of your sales receipt and a description of the problem to PrecisionPower Inc Service Department 4829 S 38th Street Phoenix AZ 85040 2964 TO RETURN PRECISIONPOWER PRODUCTS OUT OF WARRANTY Return the unit postage prepaid in the original protective carton Please include a description of the problem and if desired a request for an estimate of repair costs Unless a request for an estimate is included the unit will be repaired as necessary Please contact PrecisionPower Customer Service at 1 800 62 POWER for questions concerning out of warranty repair charges Repaired unit will be returned with an itemized statement C O D BACK TO CONTENTS
18. ppropriate hole and tighten the screws Once the wires are secure the PowerLock may be plugged into the amplifier The Power Ground PowerLock will accommodate 4 gauge wire for the Pro6800 Power Ground PowerLock Power wires S Screws 4 Connect to Amplifier BACK TO CONTENTS SPEAKER WIRING O 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 Check to be sure you ve maintained proper polarity before securing each wire Speaker PowerLock Connector gt Right Speaker negative Right Speaker positive Remote turn on Left Speaker positive Left Speaker negative Speaker PowerLock Connector gt Right Speaker negative Right Speaker positive Left Speaker positive Left Speaker negative Speaker Remote PowerLock For the front and rear channels locate the four terminal speaker PowerLock connectors On your new Pro6800 PowerClass Amplifier all speaker PowerLocks plug into the amplifier with the screws facing up Loosen the screws on the top of the blocks and insert the stripped ends
19. r short circuits or loose connections Be sure that powerlock plugs are in place properly screws facing up and observe correct wiring diagram AMPLIFIER TURNS DOWN Both excessive temperature and low impedance or short circuit conditions will activate the amplifier s AM IV protection Cre TS 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 down check your speakers and wiring for low impedance and short circuits Also ensure that there is nothing the normal convective of the amplifier No obstruction shoul be within 2 of the amplifier on all sides NOTE Low battery voltage will cause the amplifier to run warmer 18 5 SYSTEM DIAGRAM Pro6800 Channel 1 Channel 2 HighPass HighPass Channel 3 Highpass BACK TO CONTENTS SYSTEM DIAGRAM Source To Inputs B Pro6800 Channel 1 Channel 2 HighPass HighPass Channel 3 Channel 4 BandPass BandPass Channel 5 6 Lowpass Subwoofer Subwoofer System Layout Using Switch 20 BACK TO CONTENTS SYSTEM DIAGRAM Source PAR 245 gt Pro6800 RCA Output Bandpass oM 12dB Octave PC AMP Channel 1 Channel 2 HighPass HighPass tweeter Channel 3 Channel 4 BandPass BandPass Midrange MidBass 40 SUB Channel 5 6 Lowpass i mmm Sub Woofers 24dB Octave Four Way System Layou
20. s are not made available to anyone else nor are they for sale Our goal is to make sure that your PrecisionPower product will always sound as good as the day it was purchased Contact your authorized PrecisionPower dealer about obtaining any warranty service through PrecisionPower See Warranty inside back cover ny yl i FOR YOUR RECORDS ode Serial Number Purchase Date 16 E The extended use of a high powered audio system may result in hearing loss or damage While PrecisionPower systems are capable of Concert Level volumes with incredible accuracy they are also designed for you to enjoy at more reasonable levels all of the sonic subtleties created by musicians Please observe all local sound ordinances BACK TO CONTENTS yh FEATURES SPECIFICATIONS Mm lo 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 when installed by an Authorized PrecisionPower Dealer Completely Designed And Handcrafted In The USA Bandwidth 4
21. t with MidBass Amp 21 BACK TO CONTENTS SYSTEM DIAGRAM Source qu RCA Output Lowpass Pro6800 M 24dB Octave Channel 1 Channel 2 HighPass HighPass tweeter tweeter Channel 3 Channel 4 BandPass BandPass Midrange Midrange N N Channel 5 Channel 6 4 BandPass BandPass a MidBass MidBass 89 SUB 89 SUB Four Way System Layout using a separate PC amp for Subs 22 BACK TO CONTENTS SYSTEM DIAGRAM Pro6800 Left Front HighPass 200W bridged Channels 1 2 Left Rear HighPass 200W bridged Channels 3 4 20 400W bridged Channels 5 6 Two Pro6800 Amps bridged for Left and Right channels 5 Pro6800 Right Front HighPass 200W bridged Channels 1 2 Right Rear HighPass 200W bridged Channels 3 4 20 400W bridged Channels 5 6 BLOCK DIAGRAM Pro6800 9 8 TANNVHO YOUMS 190 9S _ JOAOSSO17 2 0 ZH002 OLX ZH0Z 21002 OLX zH0Z Sseg MO 21 seg 2002 01 202 29002 01 SSEd MO ssed BIH zi Japanu 4 OLX 2 01X 2 2 02 7H00S ZH0S HOLIMS OSd ur
22. tal speaker impedance should be no lower than 2 ohms on the stereo channels and 4 ohms on the mono channel li i NOTE Passive crossovers must be used for mixed mono operation Choose a low pass crossover around 100Hz for your subwoofer then choose a high pass crossover for your stereo channels The high pass crossover must be at the same or slightly higher frequency than the low pass crossover to maintain the correct impedance See your PrecisionPower dealer or call 1 800 62POWER for more information about passive crossovers BACK TO CONTENTS 9 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 QBASS1 Use this switch with the QBASS 2 to program the QBASS PLUS circuit see page 2 3 QBASS2 Use this switch with the QBASS 1 to program the QBASS PLUS circuit see page 2 4 5 COOLING VENTS see page 16 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 Push this switch in to attenuate the input by 1288 see page 14 7 INPUTSA Plug in the Front RCA leads from your head unit here see page 14 amp 16 8 INPUTSB Plug in the Rear RCA leads from your head unit here see page 14 amp 16 9 OUTPUTS Left and Right RCA outputs provide band pass or mono low pass signal to another amplifier 10 POWER MUTE
23. to be replaced if it is frayed or broken Run signal cables RCAs and remote turn on lead down the opposite side of the vehicle of the power wire to avoid radiated noise Warning 2 Fuse must be installed within 18 of battery BACK TO CONTENTS yu Fuse must be installed within 18 of battery Drill a hole in the firewall and use a rubber grommet to keep wire from shorting Run the cables under the carpet near the side of the vehicle Be careful not to drill or screw into the wires when you replace the trim For systems over 300 watts add a ground cable from the amp to the battery see page 6 POWER GROUND 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 We suggest crimping and soldering this connection After the connection is complete coat the area on both sides with silicone or some similar material to prevent rust from developing on the bare metal My My If your grand total current draw is over 50 amps or total output power is over 300watts you should run a ground wire beside your power
24. vel control Adjust the level control clockwise for up to 18dB of boost at your selected frequency and Q QBASS PLUS QBASS Settings 1 2 Freq IN IN 30Hz IN OUT 36Hz OUT IN 44Hz OUT OUT 60Hz m 44Hz 60Hz Optional QBASS REMOTE This boost control can be mounted in the dash and will supersede the boost control on the endplate Optional QPORT expansion module allows one boost control to operate multiple amplifiers Each has outputs tor four amplifiers as well as another QPORT for greater expansion See your Authorized PrecisionPower Dealer for more information Crossover Specifications PC PRO 6800 Linkwitz Riley crossover topology used throughout High Pass Channels 1 2 12dB Octave stereo Fully Variable 20 Hz 20 KHz Band Pass Channels 3 4 12dB Octave stereo Fully Variable 20 Hz 20 KHz Sub or Band Pass Channels 5 6 24dB Octave mono Fully Variable 50 Hz 500 Hz Lowpass or 12dB Octave stereo 20 Hz 20 KHz Bandpass Sub or Band Pass RCA outputs will be the opposite of Channels 5 6 Crossover QBASS PLUS on Lowpass assigned to Channels 5 6 or RCA OUTPUT CAUTION QBASS PLUS should only be used in systems with strong subwoofers 18dB is a lot of bass boost and could damage full range speakers 2 5 li A Tools Parts needed for Installation not supplied li Small flat blade screwdriver Phill
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