Audiovox PAB-450R User's Manual
Contents
1. Model PAB 450R 400 4 Channel Amplifier 185 1 PreGaUl ONS cee acai 2 Installation Instructions nn 222 nana 3 Wining InstrUctiOns rerni siori aN 4 5 4 Mixed Mono Input Wiring Diagram 6 4 Channel Mixed Mono Output Wiring Diagram 7 3 Channel Input Wiring Diagram 2 2 rann nanna 8 3 Channel Output Wiring Diagram 9 2 Channel Mono Bridged Input Wiring Diagram 10 2 Channel Mono Bridged Output Wiring Diagram 11 12 13 Back Cover HIGH PERFORMANCE STEREO AMPLIFIER This power amplifier has been designed to provide high quality performance with a minimum of maintenance However it s performance will only be as good as the care and quality of components with which it is installed We therefore advise that you readthese instructions very carefully to familiarize yourself with the product and it s features Should you require assistance with the installation or wiring of this unit please call our toll free HELP line at 1 800 645 4994 during the days hours shown SPECIFICATIONS Saturday Maximum Output Power Input Impedance 4 Channel Operation 100 watts x 4 2 Chan2. SPEAKER SPEAKER CHASSIS O USE 10 GAUGE GROUND NE id WIRE SEE TEXT I q EXISTING SCREW OR BOLT O CLEAN PAINT RUST DIRT OR GREASE FROM AREA FOR GOOD CONNECTION JES 200 GROUNDED METAL SECTIONOF VEHICLE 1 ol LE LE AD CAR STEREO AUTO ANTENNALEAD CH3 CH1 CH2 MIXED MONO SPEAKER OR MIXED MONO SPEAKER OR SUB WOOFER WITH CROSSOVER SUB WOOFER WITH CROSSOVER 4 8 OHMS 4 8 OHMS 7 8 USE THIS INPUT WIRING WITH 3 CHANNEL INPUT WIRING DIAGRAM OUTPUT WIRING ON 9 LOW LEVEL HIGH LEVEL PEAKER OUTPUTS RCA OUTPUTS CAR STEREO LEFT RIGHT e gi T RIGHT cl LEFT RIGHT LEFT MONO OR SUBWOOFER MONO OR MONO OR IMPORTANT USE EITHER HIGH LEVEL OR LOW LEVEL INPUTS NOT BOTH CONNECTORS lt SHIELDED CABLES INCLUDED OOD y CABLE BASS ST FILTER ae ml 1208 1848 LPF OFF 1 LPF OFF off i208 IN gt E 2 6 6 oe PYF da NE a ER TO CH1 gt 2 26 gt 2 4 6 4 2 CH4 4 USE THIS OUTPUT WIRING WITH
3. around it to dissipate that heat Do not install the amplifier in an enclosed area which does not permit adequate air circulation Should the temperature of the unit rise too high the internal thermal sensors will shut off operation until it has cooled down sufficiently If fuse replacement is necessary use only fuses of the same ampere rating as originally supplied with the unit The use of fuses with incorrect ratings may cause serious damage to the amplifier If fuses blow consistently carefully check all electrical connections to the unit 5 Supply of adequate battery voltage is critical to the proper operation of the power amplifier The leads to the battery and chassis ground must be of a thick enough gauge to provide this voltage to the amplifier We recommend 10 gauge wire or larger smaller gauge for the battery and ground leads 6 Make certain that the speaker s to be used with this amplifier are capable of handling the output power wattage of the unit Use of speaker s not rated for the output of this amplifier may cause damage to or failure of the 5 for which Audiovox will not be liable INSTALLATION INSTRUCTIONS 1 Select a mounting area where the amplifier will have sufficient air circulation for proper cooling Inadequate air circulation will cause the temperature of the amplifier to rise and will trigger the thermal protection mode 2 Place the amplifier on the mounting surface and mark t
4. GH IN TO CH1 TO CH2 2 4 6 4 TO CH3 CH4 2 gt gt 10 2 MONO BRIDGED OUTPUT WIRING DIAGRAM LEFT SPEAKER RIGHT SPEAKER CONNECT THIS OR OR WIRE LAST SUB WOOFER SUB WOOFER A 4 8 OHMS 4 8 OHMS J I j 1 4 savour pi 119 CHASSIS USE 10 GAUGE GROUND WIRE SEE TEXT EXISTING SCREW OR BOLT CLEAN PAINT RUST DIRT OR GREASE FROM AREA FOR GOOD CONNECTION GROUNDED METAL SECTION OF VEHICLE CAR STEREO 11 After initial set up the amplifier should not require any further adjustment unless there is change in the car stereo or speaker system with which it is used Power Indicator The Power LED functions as a power and warning indicator The indicator is white when the power to the amplifier is off When the indicator is green the amplifier is operating normally The LED illuminates red to indicate that the self protection circuits have been activated and have shut off operation of the amplifier The protection circuits may be triggered by the temperature of the unit rising above a safe level or by an overload condition If activated by a rise in temperature the unit will resume operation after cooling off to a normal operating range If activated by an overload condition
5. INPUT WIRING ON PAGE 8 3 CHANNEL OUTPUT WIRING DIAGRAM CONNECT THIS 781 Q RIGHT WIRE LAST SPEAKER 2 8 5 2 8 5 gt 4 8 4 8 ons IN gt MIXED MONOMODE I 12 VOLT BATTERY CHASSIS SPEAKER USE 10 GAUGE GROUND R WIRE SEE TEXT suB wooFer EXISTING SCREW OR BOLT 4 8 OHMS CLEAN PAINT RUST DIRT OR GREASE FROM AREA FOR GOOD CONNECTION Va fat GROUNDED SECTION VEHICLE gt 14 5 CH3 CH4 oes MIXED MONO SPEAKER OR OOO SUB WOOFER WITH CROSSOVER 4 8 OHMS USE THIS INPUT WIRING WITH 2 CHANNEL MONO BRIDGED INPUT WIRING DIAGRAM gt HIGH LEVEL LOW LEVEL RCA OUTPUTS CAR STEREO sasse ODO RIGHT 552 62157 IMPORTANT USE EITHER HIGH OR LOW LEVEL INPUTS NOT BOTH 4 3 2 CONNECTORS 5 5 5 RCA SHIELDED CABLES NOT SUPPLIED H H H CH3 ool POWER 2 CH3 4 Ae Le 02 ay PAB 450R HIGH IN LEVEL V FREQUNCY Hz FREQUENCY Hz _ LEVL V HI
6. ale of this product Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damage so the above limitations or exclusions may not apply to you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state U S A AUDIOVOX CORPORATION 150 MARCUS BLVD HAUPPAUGE NEW YORK 11788 1 800 645 4994 CANADA CALL 1 800 645 4994 FOR LOCATION OF WARRANTY STATION SERVING YOUR AREA lt 128 5543 2000 Audiovox Hauppauge N Y Printed in Korea 128 5718
7. aler This Warranty does not extend to the elimination of externally generated static or noise to correction of antenna problems to costs incurred for installation removal or reinstallation of the product or to damage to tapes compact discs speakers accessories or vehicle electrical systems This Warranty does not apply to any product or part thereof which in the opinion of the Company has suffered or been damaged through alteration improper installation mishandling misuse neglect accident or by removal or defacement of the factory serial number bar code label s THE EXTENT OF THE COMPANY S LIABILITY UNDER THIS WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT PROVIDED ABOVE AND IN NO EVENT SHALL THE COMPANY S LIABILITY EXCEED THE PURCHASE PRICE PAID BY PURCHASER FOR THE PRODUCT This Warranty is in lieu of all other express warranties or liabilities ANY IMPLIED WARRANTIES INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY SHALL BE LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY ANY ACTION FOR BREACH OF ANY WARRANTY HEREUNDER INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY MUST BE BROUGHT WITHIN A PERIOD OF 30 MONTHS FROM DATE OF ORIGINAL PURCHASE IN NO CASE SHALL THE COMPANY BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY EXPRESS OR IMPLIED WHATSOEVER No person or representative is authorized to assume for the Company any liability other than expressed herein in connection with the s
8. ccessory or Radio terminal in the car s fuse block This will turn the amplifier on and off with the ignition key regardless of whether the car stereo is on or off The remote turn on lead does not carry large currents so 20 gauge wire may be used for this application 4 WIRING INSTRUCTIONS 4 Speaker Connections Depending on the type and number of speakers used with the amplifier wire them to the speaker terminals as per the appropriate wiring diagram For most applications 18 gauge wire should be used for the speaker leads but in no case thinner than 20 gauge For leads in excess of 10 feet 16 gauge is recommended When wiring the speakers pay careful attention to the polarity of the terminals on the speakers and make certain they correspond to the polarity of the corresponding terminals on the amplifier DO NOT ground any speaker leads to the chassis of the vehicle 5 Input Connections This amplifier features both high and low level input capability Use either the low level or high level inputs not both If low level outputs are provided from the car stereo it is recommended that the low level inputs be used for lowest distortion and best performance Use good quality shielded audio cables with RCA plugs at both ends to connect the stereo to the amplifier and keep the cable lengths to a minimum to avoid noise If the car stereo does not provide low level outputs the amplifier may be connected via the speaker high level outp
9. hannels used to power full range speaker system In the LOW PASS setting only the bass frequencies below the frequency set by the Crossover Frequency Control will be amplified and fed to the speakers Use this setting if the respective amplifier channels are being used to power a sub woofer speaker system In the HI PASS setting only the frequencies above the frequency set by the Crossover Frequency Control will be amplified and fed to the speakers Use this setting if the respective amplifier channels are being used to power the full range speakers a system that also has separate sub woofer s 4 Crossover Frequency Controls These Controls select the crossover frequency when the Filter Selector is in the LOW PASS or HI PASS settings Adjust them to the appropriate position for the characteristics and crossover frequency requirements of the speaker system with which the respective channels of the amplifier are being used 5 Bass Boost Switches These switches are used to accentuate the bass frequencies by adding 12 dB 18 dB of boost to the signal at 45 Hz on the respective channels 6 Remote Subwoofer Level Control Input This connector permits the amplifier to be used with an optional Remote Control Unit PAB RC The PAB RC control unit allows for adjustment of the bass boost gain level from the passenger compartment 7 Fuses The circuitry of the amplifier is protected from damage by automot
10. he locations of the four mounting holes as shown in the illustration 3 Remove the amplifier and drill a 1 8 hole at each of the four locations CAUTION Before drilling the holes look at the underside of the mounting surface Always check carefully to avoid drilling into wiring braces fuel or brake lines CHECK BEFORE YOU DRILL 4 Apply a self adhesive rubber washer to the bottom of the amplifier at each of the 4 screw locations Secure the amplifier to the mounting surface using the self tapping screws provided 5 Attach the plastic end panels to the amplifier by removing the protective paper from the self adhesive strips on the bottom of the panels and pressing them into position on the amplifier INSTALLATION DIAGRAM END PANELS SELF TAPPING SCREW MOUNTING SURFACE WIRING INSTRUCTIONS The wiring of your amplifier will depend on the system and speakers you are using but will either be a 4 channel 3 channel 2 channel or mixed mono application The following pages illustrate the input and output wiring for these types Please refer to the appropriate diagrams for the system configuration you are using The power and speaker wire connections for this amplifier are made via screw tightened terminal blocks Loosen the screw for the connection to be made and fully insert the wire strip 1 2 of insulation from the end under the respective screw on the side panel crimp on U terminals are provided t
11. ive type fast blow fuses If fuse replacement is necessary use only fuses of the same ampere rating as originally supplied with the unit The use of fuses with incorrect ratings may cause serious damage to the amplifier If fuses blow consistently carefully check all electrical connections to the unit 13 12 24 MONTH LIMITED WARRANTY Applies to automotive radios radio tape players radio CD players CD changers power amplifiers equalizers and accessories AUDIOVOX CORPORATION the Company warrants to the original retail purchaser of this product that should this product or any part thereof under normal use and conditions be proven defective in material or workmanship within 12 months from the date of original purchase such defect s will be repaired or replaced with new or reconditioned product at the Company s option without charge for parts and repair labor To obtain repair or replacement within the terms of this Warranty the product is to be delivered with proof of warranty coverage e g dated bill of sale specification of defect s transportation prepaid to an approved warranty station or the Company at the address shown below The warranty period will be extended to 24 months from the date of original purchase if the product is installed by an authorized Prestige Audio dealer To claim warranty service during this extended period the bill of sale must specify that the product was installed by an authorized Prestige Audio de
12. nel Operation 200 watts x 2 Input Sensitivity Output Power 0 05 T H D 4 Channel Operation 50 watts RMS x 4 Filter Types 2 Channel Operation 125 watts RMS x 2 Filter Slope 2 8 ohms stereo Filter Crossover 4 8 ohms mono Frequency Response 10 50 000 Hz 1 dB Channel Separation 50 dB Supply Voltage Signal Noise Ratio 90 dB A Weighted Fuse Rating Dimensions x D Due to continuing improvement Audiovox reserves the right to change features and design without notice 1 1 800 645 4994 Monday Friday 8 30 7 00pm Eastern HELP 9 00am 5 00pm Eastern low level 10K ohms high level 100 ohms low level 200 mv 4 v high level 2 10 low pass and hi pass 18 dB octave 50 180 Hz variable 12 or 18 dB 45 Hz selectable 12 volts negative ground 20 amps x 2 10 3 4 x 2 3 8 x 11 1 2 273 x 62 mm x 290 mm 1 PRECAUTIONS Although this unit is designed with built in self protection circuits there may be a possibility of damage if itis not wired correctly Please follow the wiring instructions carefully for the type of system being used The last lead to be connected is the wire to the positive terminal of the battery Connect this wire only after having completed and checked all other connections to the amplifier By nature of its design a power amplifier generates heat and requires good air circulation
13. o simplify wiring and we recommend their use Tighten the screw down to secure the wire 1 Power Connection The battery terminal 12V must be connected directly to the positive terminal of the vehicle battery to provide an adequate voltage source and minimize noise Connecting the battery terminal lead to any other point such as the fuse block will reduce the power output and may cause noise and distortion Use only 10 gauge or thicker smaller gauge wire for this lead and connect it to the terminal of the battery after all other wiring is completed 2 Ground Connection The ground terminal GND connection is also critical to the correct operation of the amplifier Use a wire of the same gauge as the power connection 10 or thicker and connect it between the ground terminal GND of the amplifier and a metal part of the vehicle close to the mounting location This wire should be as short as possible and any paint or rust at the grounding point should be scraped away to provide a clean metal surface to which the end of the ground wire can be screwed or bolted 3 Remote Turn On Connection The amplifier is turned on by applying 12 volts to the remote turn on terminal REM The wire lead to this terminal should be connected to the Auto Antenna lead from the car stereo which will provide the 12 volts only when the car stereo is turned on If the car stereo does not provide an Auto Antenna lead the remote turn on lead may be wired to an A
14. the source of the overload must be found and corrected to resume operation of the amplifier Most overload conditions are caused by mis wiring or operation into incorrect speaker loads Re check all wiring and connections if this situation occurs and correct as necessary 2 Level Controls The amplifier is capable of operating from sources supplying a wide range of input levels The Level controls should initially be set to the mid rotation position If it is found that there is not enough output even when the volume control on the car stereo is at its maximum setting adjust the Level control of the respective channels to increase the output from the system If however there is still output from the amplifier when the car stereo volume control is minimum setting or the output level increases too fast with small rotation of the volume control adjust the Level control to decrease the output from the system Once the correct setting is found these controls should not require any further adjustment 3 Filter Selectors These switches allow selection of the frequency filters that permit the respective channels of the amplifier to be used to reproduce the entire audio range just the bass or all frequencies above the bass range In the OFF position of the switch the response is flat and unaffected so the entire audio frequency range is 12 amplifier Use this setting if the respective amplifier c
15. uts from the stereo Wire the speaker leads from the car stereo to the 4 pin adaptor harness as shown in the diagram shielded cable is not required for this application and plug the connector into the mating High Level Input connector on the amplifier Carefully splice and insulate all wire connections CAUTION Use either the low level or the high level inputs on the amplifier DO NOT use both input levels at the same time USE THIS INPUT WIRING WITH 4 CHANNEL AND MIXED MONO INPUT WIRING DIAGRAM OUTPUT WIRING ON PAGE 7 LOW LEVEL HIGH LEVEL RCA OUTPUTS SPEAKER OUTPUTS LEFT REAR CAR STEREO RIGHT REAR RIGHT REAR LEFT FRONT RIGHT FRON IMPORTANT USE EITHER HIGH LEVEL OR LOW LEVEL INPUTS NOT BOTH 4 PIN CONNECTORS RCA TYPE SHIELDED CABLES NOT INCLUDED WHITE w BLACK STRIPE GRAY w BLACK STRIPE OFF HPF 1 2 CH3 4 USE THIS OUTPUT WIRING WITH WIRING 4 CHANNEL AND MIXED MONO OUTPUT WIRING DIAGRAM LEFT FRONT RIGHT FRONT SPEAKER SPEAKER CONNECT THIS WIRE LAST SPEAKER IMPEDANCE is a a 4 4 CHANNEL MODE 2 8 OHMS 5 VV MIXED MONO MODE 4 8 OHMS O LEFT REAR RIGHT REAR 12VOLT
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