Audiovox Stereo Amplifier PAB 2150R User Manual

Model PAB-2150R  
600 Watt Stereo Amplifier  
Owner's  
Manual  
 
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 read these instructions very carefully to familiarize yourself with the product  
and it's features.  
HELP!  
1-800-645-4994  
Monday - Friday  
Saturday  
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.  
8:30am - 7:00pm Eastern  
9:00am - 5:00pm Eastern  
SPECIFICATIONS  
Maximum Output Power:  
Stereo Operation:  
Input Impedance:  
Input Sensitivity:  
low-level 10K ohms  
high-level 100 ohms  
300 watts x 2  
600 watts x 1  
Mono Operation:  
low-level 200 mv. - 4 v.  
high-level 2 - 10 v.  
Output Power @ 0.05% T.H.D.:  
Stereo Operation:  
150 watts RMS x 2  
400 watts RMS x 1  
Filter Types:  
Filter Slope:  
low-pass and hi-pass  
18 dB/octave  
Mono Operation:  
Output Impedance:  
2 - 8 ohms (stereo)  
4 - 8 ohms (mono)  
Filter Crossover:  
Bass Boost:  
50 - 180 Hz. (variable)  
+12 dB or +18 dB @ 45 Hz.  
(selectable)  
Frequency Response:  
Channel Separation:  
Signal / Noise Ratio:  
10 - 50,000 Hz. ± 1 dB  
50 dB  
Supply Voltage:  
Fuse Rating:  
12 volts, negative ground  
30 amps. x 2  
93 dB (A-Weighted)  
Dimensions (W x H x D): 10-3/4" x 2-3/8" x 12"  
273 mm x 62 mm x 300 mm  
* Due to continuing improvement, Audiovox reserves the right to change features and design without notice.  
-1-  
 
PRECAUTIONS  
1. Although this unit is designed with built-in self-protection circuits, there may be a possibility of damage if it is not wired  
correctly. Please follow the wiring instructions carefully for the type of system being used.  
2. 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.  
3. By nature of its design, a power amplifier generates heat and requires good air circulation 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.  
4. 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 speaker(s)  
for which Audiovox will not be liable.  
-2-  
 
INSTALLATION DIAGRAM  
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.  
END PANELS  
SELF-TAPPING SCREW  
2. Place the amplifier on the mounting surface and  
mark the locations of the four mounting holes as  
shown in the illustration.  
3.Removetheamplifieranddrilla1/8"holeateach  
of the four locations.  
CAUTION: Before drilling the holes, look at the  
underside of the mounting surface. Always  
checkcarefullytoavoiddrillingintowiring,braces,  
fuel or brake lines. CHECK BEFORE YOU  
DRILL !  
OFF 12dB  
18dB  
1/8" DIA.  
HOLE  
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.  
RUBBER WASHERS  
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.  
MOUNTING SURFACE  
-3-  
 
WIRING INSTRUCTIONS  
The wiring of your amplifier will depend on the system and speakers you are using but will either be a stereo, mono, or  
mixed-mono application. The following pages illustrate the input and output wiring for both types. Please refer to the  
appropriate diagrams for the system configuration you are using.  
Thepowerandspeakerwireconnectionsforthisamplifieraremadeviascrewtightenedterminalblocks. Loosenthescrew  
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 to 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 "Accessory" 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)  
outputs 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.  
-5-  
 
USE THIS INPUT WIRING WITH  
OUTPUT WIRING ON PAGE 7  
STEREO AND MIXED-MONO INPUT WIRING DIAGRAM  
HIGH-LEVEL  
(SPEAKER) OUTPUTS  
LOW-LEVEL  
RCA OUTPUTS  
CAR STEREO  
RIGHT  
RIGHT  
-
LEFT  
+
LEFT  
LEFT  
-
+
RIGHT  
IMPORTANT  
USE EITHER HIGH-LEVEL OR  
LOW-LEVEL INPUTS, NOT BOTH.  
1
RCA TYPE  
SHIELDED CABLE  
(NOT INCLUDED)  
4-PIN  
CONNECTOR  
OFF 12dB 18dB  
REMOTE CONTROL  
43 6  
2
5
-6-  
 
USE THIS OUTPUT WIRING WITH  
INPUT WIRING ON PAGE 6  
STEREO AND MIXED-MONO OUTPUT WIRING DIAGRAM  
CONNECT THIS  
WIRE LAST  
+
-
m
m
LEFT  
SPEAKER  
RIGHT  
SPEAKER  
+
-
12 VOLT  
VEHICLE  
BATTERY  
m
m
STEREO MODE : 2-8 OHMS  
STEREO MODE : 2-8 OHMS  
CHASSIS  
GROUND  
MIXED-MONO MODE : 4-8 OHMS  
MIXED-MONO MODE : 4-8 OHMS  
USE #10 GAUGE  
WIRE (SEE TEXT)  
EXISTINGSCREWORBOLT  
CLEAN PAINT, RUST, DIRT  
OR GREASE FROM AREA  
FOR GOOD CONNECTION  
GROUNDED METAL  
SECTIONOFVEHICLE  
CAR STEREO  
+
-
m
m
7
AUTO-ANTENNA LEAD  
MIXED-MONO SPEAKER OR  
SUB-WOOFER WITH CROSSOVER  
4-8 OHMS  
-7-  
 
USE THIS INPUT WIRING WITH  
OUTPUT WIRING ON PAGE 9  
MONO (BRIDGED) INPUT WIRING DIAGRAM  
HIGH-LEVEL  
(SPEAKER) OUTPUTS  
LOW-LEVEL  
RCA OUTPUTS  
CAR STEREO  
-
TO 2nd AMPLIFIER  
+
TO 2nd  
AMPLIFIER  
-
+
IMPORTANT  
USE EITHER HIGH OR LOW-LEVEL  
INPUTS, NOT BOTH.  
"Y" RCA TYPE  
SHIELDED CABLE  
(NOT SUPPLIED)  
4-PIN  
CONNECTOR  
1
OFF 12dB 18dB  
REMOTE CONTROL  
5
4
2
3
6
-8-  
 
USE THIS OUTPUT WIRING WITH INPUT  
WIRING ON PAGE 8  
MONO (BRIDGED) OUTPUT WIRING DIAGRAM  
CONNECT THIS  
WIRE LAST  
+
m
MONO SPEAKER  
12 VOLT  
VEHICLE  
BATTERY  
OR  
SUB-WOOFER  
4 - 8 OHMS  
CHASSIS  
GROUND  
-
USE #10 GAUGE  
WIRE (SEE TEXT)  
m
EXISTINGSCREWORBOLT  
CLEAN PAINT, RUST, DIRT  
OR GREASE FROM AREA  
FOR GOOD CONNECTION  
GROUNDED METAL  
SECTIONOFVEHICLE  
CAR STEREO  
AUTO-ANTENNA LEAD  
7
-9-  
 
OPERATION  
After initial set-up, the amplifier should not require any further adjustment unless there is a change in the car stereo  
or speaker system with which it is used.  
1
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, 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 (Gain) Control  
The amplifier is capable of operating from sources supplying a wide range of input levels. The Level control  
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 to increase the output from  
the system. If, however, there is still output from the amplifier when the car stereo volume control is at its  
minimum setting, or the output level increases too fast with a small rotation of the volume control, adjust the  
Level control to decrease the output from the system. Once the correct setting is found, this control should not  
require any further adjustment.  
-10-  
 
3
Filter Selector  
This switch allows selection of the frequency filters that permit 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  
reproduced by the amplifier. Use this setting if the amplifier is being used to power a 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 amplifier is 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 amplifier is being used to power the full-range  
speakers in a system that also has separate sub-woofer(s).  
4
5
Crossover Frequency Control  
This Control selects the crossover frequency when the Filter Selector is in the "LOW-PASS" or "HI-PASS"  
settings. Adjust it to the appropriate position for the characteristics and crossover frequency requirements of  
the speaker system with which the amplifier is being used.  
Bass Boost Switch  
This switch is used to accentuate the bass frequencies by adding +12 dB or +18 dB of boost to the signal  
(at 45 Hz.).  
-11-  
 
6
7
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.  
Fuse  
The circuitry of the amplifier is protected from damage by automotive-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.  
 
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. Toclaimwarrantyserviceduringthisextendedperiod, thebillofsalemustspecifythattheproductwasinstalledby anauthorizedPrestige  
Audio dealer.  
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 sale 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 l 1-800-645-4994  
CANADA : CALL 1-800-645-4994 FOR LOCATION OF WARRANTY STATION SERVING YOUR AREA  
128-5543  
 
© 2000 Audiovox Corp., Hauppauge, N.Y.  
Printed in Korea  
128-5720  
 

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