Radio Shack PLXR5 User Manual

2 WAY ELECTRONIC CROSSOVER  
WITH SUBWOOFER REMOTE CONTROL  
HIGH PERFORMANCE CAR AUDIO  
MODEL:PLXR5  
FUNCTIONS  
1. SIGNAL INPUTS  
To be connected to the output of the source unit.  
2. LOW PASS SUBWOOFER OUTPUT TERMINALS  
To be connected to the subwoofer channel amplifier left/right inputs.  
3. HIGH PASS CHANNEL OUTPUT TERMINALS  
To be connected to the channel amplifier left/right inputs.  
4. FUSE  
This crossover uses a 1-amp,blade-type fuses for protection from power surges or  
a short circuit.  
5. POWER INPUT TERMINAL (12V)  
To be connected to the positive terminal of your vehicle battery or other constant  
+12V source.  
6. REMOTE TURN-ON INPUT TERMINAL (REMOTE)  
To be connected to the remote control wire or antenna lead of the source unit for  
remote ON/OFF.  
7. GROUND INPUT TERMINAL  
To be wired to the vehicle's chassis ground.  
8. POWER INDICATOR  
This indicator lights up when the internal switching power supply is activated and  
the unit is operational.  
2
FUNCTIONS  
9. HIGH PASS GAIN CONTROL  
For adjusting the channel output signal level.  
10. SUBWOOFER STEREO/MONO SWITCH  
For selection of stereo or mono mode subwoofer output.  
11. HIGH-PASS FREQUENCY SELECTOR  
For selection of high-pass crossover frequency between 80 Hz and 2.5KHz  
12. PHASE INVERTER  
Position the switch to the "180" position shifts the subwoofer output signals 180  
degrees out-of-phase relative to the front and rear output signals.  
13. BASS-BOOST LEVEL CONTROL (45Hz)  
For increasing the Bass boost level up to +12dB.  
14. LOW PASS SUBWOOFER FREQUENCY SELECTOR  
For selection of the low-pass crossover frequency for the subwoofer channel  
between 35 Hz and 400 Hz.  
15. SUBWOOFER OUTPUT LEVEL REMOTE CONTROL TERMINAL.  
To be connected to the remote control for exclusive maneuver of the subwoofer  
output level, and the subwoofer output level control on the unit ("16" below) is by-  
passed.  
16. LOW PASS SUBWOOFER OUTPUT GAIN CONTROL  
For adjusting the subwoofer channel output signal level.  
3
ELECTRICAL & AUDIO CONNECTIONS  
4
ELECTRICAL & AUDIO CONNECTIONS  
Precautions  
1. To prevent short circuits, be sure to disconnect the negative battery ground lead  
before wiring the system up.  
2. When you finish the installation, be sure to make one more check to be sure  
everything is done correctly.  
3. Reinstate all car parts that were removed.  
4. Reconnect the negative battery ground lead.  
Primary Wiring Descriptions  
ELECTRICAL  
PRIME CONNECTION  
DESCRIPTION  
12V  
BATTERY +  
Connect to the positive battery terminal  
(constant + 12V source)  
GROUND  
REMOTE  
GROUND -  
Connect to the vehicle's chassis ground  
(check for good ground)  
REMOTE B+(12V)  
Connect to the remote control wire(or the  
electrical antenna) of the car radio/cassette  
deck  
INPUT  
RADIO/TAPE  
Connect from pre-amp output of radio/tape  
player (or CD) into  
PLAYER TO  
CROSSOVER MODULE  
HIGH PASS  
OUTPUT  
CROSSOVER MODULE  
TO ANY AMPLIFIER  
Connect from "high-pass output" of  
CROSSOVER module to any amplifier input.  
LOW PASS  
OUTPUT  
CROSSOVER MODULE  
TO SUB-WOOFER  
AMPLIFIER  
Connect from low-pass sub-woofer output of  
CROSSOVER to sub-woofer amplifier input.  
5
NOISE CHECK & SYSTEM ADJUSTMENT  
6
TROUBLE SHOOTING GUIDE  
7
INSTALLATION  
INSTALLATION  
8
SPECIFICATIONS  
SPECIFICATIONS  
Power source:  
Input current  
14.4 volts DC negative ground  
0.5 amp max  
Distortion:  
0.01% THD at 1 V output level  
10Hz-30KHz 3 dB  
>95dB  
Frequency response:  
S/N ratio (A weighted):  
Separation:  
60 dB  
Crossover frequencies (continuously variable):  
Low-pass:  
35-400 Hz  
High-pass:  
80-2.5KHz  
Crossover slope rate:  
Subwoofer boost:  
Input impedance :  
Output impedance  
Output voltage level:  
Dimensions:  
12 dB per octave 2nd Order Butter worth  
Single octave + 12dB at 45 Hz  
> 10K Ohms  
<1K Ohms  
5 volts max  
160mm (W) x 130mm (D) x 37mm (H)  
FEATURES AND SPECIFICATIONS SUBJECT TO CHANGE AND / OR IMPROVEMENT  
WITHOUT NOTICE.  
9

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