CONTENTS (click on a topic to view) Congratulations Features and Specifications Frequency Chart Installation / Mounting Wiring Wiring Functions Functions Input Troubleshooting System One Diagram System Two Diagram Block Diagram Warranty FRX456 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 Linkwitz-Riley 24 dB/octave Subwoofer Filter Linkwitz-Riley 12dB/octave Mid Bass, Mid Range and High 2,3, or 4-way active crossover Input Combine Switch Input Attenuation Detented Frequency Selection Controls Rear Fill Level Control Sub Woofer Level Control Gold RCA input and output connectors PWM Power Supply Designed and Handcrafted in the USA Specifications Signal-to-Noise Ratio >102dB Total Harmonic Distortion (1KHz, 1VRMS) 0.002% Crossover Slopes: All Except Sub Low Pass 12 dB/octave Sub Low Pass 24 dB/octave Crossover Frequencies: Front: High Pass 80 Hz-7.5 KHz to 20 KHz Mid Range 80 Hz-1.7 KHz to high pass Mid Bass 55 Hz-500 Hz to midrange Rear: High Pass 80 Hz-7.5 KHz to 20 KHz Mid Range 80 Hz-1.7 KHz to high pass Sub: Low Pass 20 Hz-270 Hz Sub Sonic 7 Hz-46 Hz Input Impedance 10 K Maximum Output (10 K Load) 8 VRMS Supply Voltage 11-15 VDC Dimensions 5.125"W 10.50" L 1.750"H 1 BACK TO CONTENTS FREQUENCY CHART All crossover frequency controls are detented. Each "click" counted from the full counterclockwise position corresponds to a specific frequency. Refer to this chart and page 6 for set-up instructions. Detent Sub Sonic Sub Mid Bass Mid Range High Pass 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 7 Hz 7 Hz 7 Hz 7 Hz 8 Hz 8 Hz 8 Hz 8 Hz 9 Hz 9 Hz 10 Hz 10 Hz 10 Hz 11 Hz 12 Hz 13 Hz 14 Hz 15 Hz 16 Hz 16 Hz 17 Hz 18 Hz 19 Hz 19 Hz 21 Hz 22 Hz 23 Hz 25 Hz 26 Hz 29 Hz 32 Hz 35 Hz 38 Hz 40 Hz 41 Hz 43 Hz 44 Hz 45 Hz 46 Hz 46 Hz 46 Hz 20 Hz 22 Hz 22 Hz 22 Hz 24 Hz 24 Hz 26 Hz 28 Hz 30 Hz 32 Hz 34 Hz 36 Hz 40 Hz 44 Hz 48 Hz 54 Hz 60 Hz 64 Hz 66 Hz 70 Hz 74 Hz 78 Hz 82 Hz 88 Hz 94 Hz 100 Hz 108 Hz 118 Hz 128 Hz 142 Hz 162 Hz 180 Hz 198 Hz 212 Hz 226 Hz 238 Hz 248 Hz 256 Hz 264 Hz 264 Hz 270 Hz 2 55 Hz 56 Hz 56 Hz 56 Hz 56 Hz 60 Hz 64 Hz 68 Hz 72 Hz 80 Hz 84 Hz 92 Hz 100 Hz 112 Hz 124 Hz 140 Hz 152 Hz 160 Hz 168 Hz 172 Hz 180 Hz 192 Hz 200 Hz 212 Hz 224 Hz 236 Hz 252 Hz 272 Hz 292 Hz 312 Hz 344 Hz 372 Hz 400 Hz 424 Hz 440 Hz 456 Hz 472 Hz 480 Hz 492 Hz 492 Hz 500 Hz 80 Hz 80 Hz 80 Hz 80 Hz 80 Hz 88 Hz 88 Hz 88 Hz 96 Hz 96 Hz 104 Hz 112 Hz 120 Hz 128 Hz 136 Hz 152 Hz 168 Hz 176 Hz 184 Hz 192 Hz 200 Hz 216 Hz 232 Hz 240 Hz 264 Hz 280 Hz 312 Hz 344 Hz 384 Hz 448 Hz 512 Hz 616 Hz 752 Hz 888 Hz 1.00 KHz 1.17 KHz 1.37 KHz 1.53 KHz 1.69 KHz 1.77 KHz 1.77 KHz 80 Hz 88 Hz 88 Hz 88 Hz 88 Hz 96 Hz 100 Hz 108 Hz 116 Hz 128 Hz 140 Hz 152 Hz 172 Hz 200 Hz 216 Hz 248 Hz 280 Hz 304 Hz 324 Hz 344 Hz 368 Hz 392 Hz 424 Hz 452 Hz 492 Hz 536 Hz 656 Hz 752 Hz 880 Hz 1.02 KHz 1.26 KHz 1.56 KHz 2.11 KHz 2.65 KHz 3.12 KHz 3.77 KHz 4.90 KHz 5.88 KHz 6.70 KHz 7.40 KHz 7.50 KHz BACK TO CONTENTS INSTALLATION / MOUNTING NOTE: Before beginning, disconnect the negative (-) terminal of the battery to prevent an electrical short to ground. Reconnect the negative terminal only after all connections have been made. Mounting To prevent damage to the crossover 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 include the trunk and passenger compartment (floor or under seat). Never mount the crossover in a location that would subject it to immersion or exposure to water. Once a location has been chosen, securely mount the FRX-456 with four mounting screws. Be Careful! Inspect the area underneath to be sure you are not drilling into wires, brake or fuel lines, etc. that could be damaged by the drill bit or screws. Dimensions 5.125"W 10.50" L 1.750"H 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 from the power wire to avoid radiated noise. eject 1 5 BASS VOLUME LEFT TREBLE TRACK RIGHT FOWARD REVERSE PPI 2 6 3 7 4 8 Trk 1 MAR KET ING DPT Drill a hole in the firewall and use a rubber grommet to keep wire from shorting. BALANCE 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. Power distribution block. Attach Ground Wires firmly 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-456. 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. Finally, the remote wire needs to Remote Power Ground run to the power antenna (or amplifier remote) lead of the head unit. This wire supplies a 12 volt signal to the FRX-456 when the T/O B+ main system is activated. Once you have routed the power, ground, and remote wires through the vehicle, it is time to connect the wires to the FRX-456. Be sure that you have not reconnected the ground cable to the negative post of the battery. Cut off excess wire and, using wire strippmrs, 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-456. 5 BACK TO CONTENTS FUNCTIONS 1 Sub Gain: Adjusts Sub output level allowing a boost or cut of +/- 10dB. 2 Sub Sonic: Sets a high pass to filter low Sub Sonic frequencies. 3 Sub: Sets lowpass Crossover frequency for the Sub output. 4 Mid Bass: Sets the Highpass crossover frequency to the Front Mid Bass Output. 5 Mid Range: Tracking 2-way crossover frequency sets Low pass to Front Mid Bass output and High pass to Front Mid Range output. 6 High Pass: Tracking 2-way crossover frequency sets High pass to Front High Pass output and Low pass to Front Mid Range output. 7 Mid Range: Sets High pass crossover frequency to Rear Mid Range output. 8 High Pass: Tracking 2 way crossover sets High pass frequency to Rear High Pass output and Low pass frequency to Rear Mid Range output. 9 Rear Fill Level: This attenuates the rear outputs. Amplitude +10 dB 0 dB -10 dB 1 Sub Sonic Low Pass 12 dB 2 3 24 dB Frequency PrecisionPower Four/Five/Six Way Electronic Crossover Made in USA FRX-456 1 _ Power -10 2 16 3 70 25 36 4 172 1 92 18 5 192 12 272 1 6 344 344 152 7 192 752 1 12 8 344 344 152 9 752 + +10 10 _ + 7 46 22 264 56 492 80 1.77K 80 7.4K 80 1.77K 80 7.4K Sub Gain Sub Sonic Sub Woofer Sub Mid Bass Mid Range Front High Pass Mid Range High Pass Rear Rear Fill Level Amplitude Midbass Midrange Tweeter Amplitude Midrange Tweeter 4 5 6 7 8 Variable Level 9 100 Hz 400 Hz 3 KHz Frequency 400 Hz 3 KHz Frequency 6 BACK TO CONTENTS FUNCTIONS 1 Sub Gain: Adjusts Sub output level allowing a boost or cut of +/- 10dB. 2 Sub Sonic: Sets a high pass to filter low Sub Sonic frequencies. 3 Sub: Sets lowpass Crossover frequency for the Sub output. 4 Mid Bass: Sets the Highpass crossover frequency to the Front Mid Bass Output. 5 Mid Range: Tracking 2-way crossover frequency sets Low pass to Front Mid Bass output and High pass to Front Mid Range output. 6 High Pass: Tracking 2-way crossover frequency sets High pass to Front High Pass output and Low pass to Front Mid Range output. 7 Mid Range: Sets High pass crossover frequency to Rear Mid Range output. 8 High Pass: Tracking 2 way crossover sets High pass frequency to Rear High Pass output and Low pass frequency to Rear Mid Range output. Amplitude +10 dB 0 dB -10 dB 12 dB 1 Sub Sonic Low Pass 2 3 24 dB Frequency Sub Out L L Front Outputs L L L Rear Outputs L R R R R R R Sub Mid Bass Mid Range High Pass Mid Range High Pass Amplitude Midbass Midrange Tweeter Amplitude Midrange Tweeter 4 5 6 7 8 Variable Level 100 Hz 400 Hz 3 KHz Frequency 400 Hz 3 KHz Frequency All crossover frequency controls are detented. Each "click" counted from the fully counterclockwise position corresponds to a specific frequency. See the Frequency Chart on page 2 for these values. If you are actively crossing over: THESE SPEAKERS: Subwoofer Front Mid Bass / Mid Range / Tweeter Mid Range / Tweeter Full Range (coaxial or component with passive crossover) Rear Mid Range / Tweeter Full Range (coaxial or component with passive crossover) USE THESE OUTPUTS: Sub output Mid Bass / Mid Range / High Pass Mid Range / High Pass High Pass Mid Range / High Pass High Pass 7 BACK TO CONTENTS INPUT Inputs A Attenuation - Push this switch in to accept high level RCA inputs (up to 8v) or direct speaker lead inputs from common grounded (not high powered) headunits. See diagram below for wiring. Combined Inputs - Push this switch IN to connect Front and Rear Inputs. Leave the switch OUT for front/rear fading. Rear Inputs - For fading rear fill, connect the rear RCAs from your head unit here. Front Inputs - Connect the front RCAs from your head unit here. After connecting Ground, Remote, and Power wires, plug in the Powerlock connector here. B C D E RIGHT input 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 PrecisionPower dealer or call 1-800-62POWER. 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. 8 BACK TO CONTENTS TROUBLE SHOOTING NO SOUND Is the LED lit? YES Check Input cables for signal by connec ...