CONTENTS (click on a topic to view) Congratulations Features and Specifications Mounting Mounting Wiring Wiring Functions Functions Input Troubleshooting Frequency Chart 3 Way System Design Block Diagram Warranty FRX322 Electronic Crossover OWNERS MANUAL POWER CLASS TM 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. This PrecisionPower product reflects our commitment to offer you unparalleled versatility and quality for years of dependable service and listening enjoyment. TM S ervice 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 parts 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 insde back cover) F O R YO U R R E C O R D S : Model Serial Number Purchase Date C aution! 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 FEATURES / SPECIFICATIONS 3-Way Active Crossover 12dB/octave Slopes Low Pass Level Control Input Attenuation Switch Detented Frequency Selection Controls Gold RCA Input and Output Connectors PowerLock Power, Ground and Remote Connector PWM Power Supply Designed and Handcrafted in the USA Specifications Signal-to-Noise Ratio >102dB Total Harmonic Distortion (1KHz, 1VRMS) 0.002% Input Impedance 10 k Maximum Output (10 k Load) 8 VRMS Supply Voltage 11-15 VDC Crossover Slopes 12 dB/octave Crossover Frequencies: Low Pass 40Hz to 500Hz Front High Pass 40Hz to 5kHz Rear High Pass 40Hz to 500Hz Dimensions 6.813" W 0.995" H 3.805" D 1 BACK TO CONTENTS MOUNTING Mounting To prevent damage to the FRX-322 while driving, mount it in a secure place. Choosing the appropriate location will depend upon your vehicle and the complexity of your system design. Typical mounting locations for your new FRX-322 would be in the dash or center console. Never mount the component in a location that would subject it to immersion or exposure to water. Once a location has been chosen, securely mount the FRX-322 using the two supplied brackets. There are two different sets of brackets included with your FRX-322. One set is used to flush mount the FRX322, as shown above. The other set is used to surface mount, as shown on the next page. The brackets are connected to the equalizer/ preamp by two 6-32 x 1/4" socket head cap screws. We have made the brackets adjustable to compensate for the uniqueness of each vehicle. Be Careful! Inspect the area underneath to be sure you are not drilling into wires, etc. that could be damaged by the drill bit or screws. 2 BACK TO CONTENTS MOUNTING Pow er R L Ouow Pass tput L R InpFront ut L R InpRear ut L R High Fro Pass nt Out L High R Re Pass ar Out L Pow er 100 50 250 300 -10 -20 - 0dB +5 FRX-3 22 Pr ec 400 500 Powe r isi on 40 Low Pass Freq +7 . Lo w Pass +10 FRX -32 Leve 2 Adjustable slots for screws Secure the bracket to the FRX-322 with the two 6-32x1/4" screws provided. Faceplate of bracket blank for installer's individual needs. We suggest using a #6 metal screw. Predrill a hole in the location desired to mount the FRX-322. A US in de Ma l Fron Inpu t/Rear t Con nect Atte nu -12d ation B in X 10 100 50 250 300 100 50 40 250 300 400 40 400 High Pass Fron t 500 Freq .H igh Pass Rear 500 Freq . Dimensions 6.813"W 0.995"H 3.805"D Pow er R L Ouow Pass tput L R InpFront ut L R InpRear ut Pow er 100 50 250 300 -10 -20 - 0dB +5 FRX-3 22 400 500 L R High Fro Pass nt Out L High R Re Pass ar Out L isi ec Pr Powe r on 40 Low Pass Freq +7 . Lo w Pass +10 Leve FRX -32 2 l Fron Inpu t/Rear t Con nect Atte nu -12d ation B in X 10 100 50 250 300 100 50 40 250 300 400 Surface mounting bracket. A US in de Ma 400 t Pass Fron 500 40 High Pow Freq er R L Ouow Pass tput L R InpFront ut L .H igh Pass Rear 500 Freq . Adjustable slots for screws R InpRear ut Pow er 100 50 250 300 -10 0 - 0dB +5 FRX-3 22 Pr 400 -2 500 L R High Fro Pass nt Out L High R Re Pass ar Out L Powe r Bracket can be reversed for installer's individual needs. We suggest securing to surface with a #6 metal screw. on isi ec 40 Low Pass Freq +7 . Lo w Pass +10 FRX -32 A US in de Ma Leve 2 l Fron Inpu t/Rear t Con nect Atte nu -12d ation B in X 10 100 50 250 300 100 50 250 300 400 40 400 t Pass Fron 500 High 40 Freq .H igh Pass Rear 500 Freq . Secure the bracket to the FRX-322 with the two 6-32x1/4" screws provided. Adjustable slots for screws 3 BACK TO CONTENTS WIRING Factory Ground wire may need to be replaced if it is frayed or broken. Positive Battery Terminal Fuse must be installed within 18" of battery Run signal cables (RCAs) and remote turn-on lead down the opposite side of the vehicle of the power wire to avoid radiated noise. Drill a hole in the firewall and use a rubber grommet to keep wire from shorting. eject 1 5 BASS VOLUME LEFT TREBLE TRACK RIGHT FOWARD REVERSE PPI 2 6 3 7 4 8 Trk 1 MAR KET ING DPT BALANCE Volume + F R + + + Fader Defeat Sub Low Low-Mid High-Mid Treble PAR-245 Power distribution block. Firmly attach Ground Wires to solid metal. 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. Avoid sharp edges that could chafe through the insulation. For systems over 300 watts, add a ground cable from the amp to the battery Firmly attach Ground Wires to solid metal. NOTE 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. 4 BACK TO CONTENTS WIRING The next step is to connect the Power, Ground, and Remote wires to your FRX-322. The power wire should run from the mounting location through the vehicle to the battery or power distribution block. Avoid sharp corners, creases, and sharp body parts. When passing through any metal wall (i.e. firewall etc.), a grommet must be used to prevent the wire from chaffing and shorting to ground. The ground wire should be of the same gauge as the power wire. As a rule of thumb, use as short a length of wire as possible. Find a location near the crossover that is metal (the floor is ideal) and clean an area about the size of a quarter to bare metal. Drill a pilot hole in the middle of this area. Be Careful! Inspect the area underneath to be sure you are not drilling into wires, brake or fuel lines, etc. Terminate the wire with a ring connector and attach it to the bare metal using a #8 sheet metal screw and washer (not supplied). We suggest crimping and/or soldering this connection. After the connection is complete, coat the area with silicone or some similar material to Powerlock prevent rust from developing. Remote Finally, the remote wire needs to Power Ground run to the power antenna (or amplifier remote) lead of the head unit. This wire supplies a 12 volt T/O B+ signal to the FRX-322 when the main system is activated. Once you have routed the power, Quick Disconnect ground, and remote wires through the vehicle, it is time to connect the wires to the FRX-322. Be sure that you have not reconnected the ground cable to the negative post of the battery. Cut off excess wire and, using wire strippers, strip the power, ground and remote cables about 1/8 inch. Locate the power, ground, and remote Powerlock connector (supplied). On the top of the connector are three slotted screws. With a small flat-bladed screwdriver, loosen the screws before attempting to insert the cables. After you have inserted the stripped end of each cable into the connector, secure it by tightening the associated screw. Check that each connection is tight. If the wires are secure, the connector may be plugged into the FRX-322. 5 BACK TO CONTENTS FUNCTIONS 1. Power After connecting the Power, Ground and Remote wires, plug in the PowerLock connector here. 2. Low Pass Output Plug the RCA cables from the FRX to the Low Pass amplifier inputs. 3. Front Input Plug the RCA cables from the front channel output of the headunit to the FRX Front Input RCAs. 4. Rear Input Plug the RCA cables from the rear channel output of the headunit to the FRX Rear Input RCAs. 5. Front High Pass Out Plug the RCA cables from the FRX to the Front High Pass amplifier inputs. 6. Rear High Pass Out Plug the RCA cables from the FRX to the Rear High Pass amplifier inputs. 1 2 3 4 5 6 Power R L R Front Input L R Rear Input L R L R L Low Pass Output Front High Pass Out Rear High Pass Out PrecisionPower FRX-322 Made in USA 6 BACK TO CONTENTS FUNCTIONS 1 250 0dB 300 -10 +5 +7 +10 250 250 300 100 300 400 40 500 Power 100 50 40 FRX-322 100 50 40 400 -20 500 - 400 50 500 Low Pass Freq. Low Pass Level Front/Rear Input Connect Attenuation -12dB in Front Rear X 10 High Pass Freq. High Pass Freq. 2 3 4 5 6 7 8 1. Power LED Red light indicates power on. 2. Low Pass Frequency Used to set the Low Pass Frequency (40 Hz - 500 Hz) 3. Low Pass Level Low Pass Level can cut or boost the Low Pass Frequency (- to +10dB) 4. Front/Rear Input Connect Push this switch IN to connect front and rear channels together when using one input. 5. Attenuation -12dB in Push this switch IN for attenuation if the line level is over 6 volts. 6. X10 Push this switch IN to multiply the Front High Pass frequency range by 10. 7. Front High Pass Frequency Used to set the Front High Pass Frequency (40 Hz - 5 kHz) 8. Rear High Pass Frequency Used to set the Rear High Pass Frequency (40 Hz - 500 Hz) 7 BACK TO CONTENTS INPUT To use Speaker Level Inputs (common ground headunits only), connect RCA plugs to the front or rear speaker leads as shown, and push IN the Attenuation switch. SOURCE Headunit eject 1 5 BASS VOLUME LEFT TREBLE TRACK RIGHT FOWARD REVERSE PPI 2 6 3 7 4 8 Trk 1 MAR KET ING DPT BALANCE (+) Positive LEFT input (-) Negative (+) Positive RIGHT input (-) Negative WARNING: If 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 PPI dealer or call 1-800-62POWER. Pow er R L Ouow Pass tput L R InpFront ut L R InpRear ut L R High Fro Pass nt Out Pow er 100 50 250 300 -10 0 - 0dB +5 FRX-3 22 ec Pr 400 -2 500 Powe r L R High Re Pass ar Out L isi on 40 Low Pass Freq . +7 Low Pass +10 Leve FRX -32 2 A US in de Ma l Fro Inpu nt/Rear t Co nne ct Atte nu -12d ation B in X 10 100 50 250 300 100 50 40 250 300 400 40 400 High Push In to attenuate the input. Pass Fron t 500 Freq .H igh Pass Rear 500 Freq . 8 BACK TO CONTENTS TROUBLE SHOOTING NO SOUND Is the LED lit? YES Check Input cables for signal by connecting them straight to the Subwoofer amplifier NO Check Power and Remote turn-on wire for voltage. Make sure Ground wire is secure. ANY SOUND NOW? YES NO Problem is in the Crossover. See your Problem is elsewhere in the system. local Authorized PrecisionPower Dealer Check head unit and amplifiers. or call1-800-62POWER. SOUND IN ONE CHANNEL ONLY Reverse left and right RCA outputs for one band (i.e. subwoofers). SOUND IS NOW IN OPPOSITE CHANNEL Reverse RCA inputs SAME CHANNEL Problem is in the amplifier, speakers or associated wiring of the silent channel. SOUND IS NOW IN OPPOSITE CHANNEL Reverse RCAs at head unit (Check Balance control) SAME CHANNEL Problem is in the Crossover. See your local Authorized PrecisionPower Dealer or call 1-800-62POWER. SOUND IS NOW IN SAME CHANNEL Problem is in the RCA cables OPPOSITE CHANNEL Problem is in the head unit LOW OUTPUT FROM ONE BAND Check gain control on the affected amplifier(s). STILL LOW OUTPUT - See your local Authorized PrecisionPower Dealer or Call 1-800-62POWER. 9 BACK TO CONTENTS FREQUENCY CHART All crossover frequency controls are detented. Each "click" counted from the full ...