Rockford Fosgate X150.1 Stereo Amplifier User Manual


 
6
BATTERY AND CHARGING
Amplifiers will put an increased load on the vehicle's battery and charging system. We recommend checking your alternator
and battery condition to ensure that the electrical system has enough capacity to handle the increased load of your stereo sys-
tem. Stock electrical systems which are in good condition should be able to handle the extra load of any Rockford Fosgate
amplifier without problems, although battery and alternator life can be reduced slightly. To maximize the performance of your
amplifier, we suggest the use of a heavy duty battery and an energy storage capacitor.
WIRING THE SYSTEM
CAUTION: If you do not feel comfortable with wiring your new unit, please see your local Authorized
Rockford Fosgate Dealer for installation.
CAUTION: Before installation, disconnect the battery negative (-) terminal to prevent damage to the unit, fire
and/or possible injury.
CAUTION: Avoid running power wires near the low level input cables, antenna, power leads, sensitive
equipment or harnesses. The power wires carry substantial current and could induce noise into
the audio system.
1. Plan the wire routing. Keep RCA cables close together but isolated from the amplifier's power cables and any high power
auto accessories, especially electric motors. This is done to prevent coupling the noise from radiated electrical fields into
the audio signal. When feeding the wires through the firewall or any metal barrier, protect them with plastic or rubber
grommets to prevent short circuits. Leave the wires long at this point to adjust for a precise fit at a later time.
2. Prepare the RED wire (power cable) for attachment to the amplifier by stripping 1/2" of insulation from the end of the
wire. Insert the bared wire into the B+ terminal and tighten the set screw to secure the cable in place.
NOTE: The B+ cable MUST be fused 18" or less from the vehicle's battery. Install the fuseholder under the hood and prepare
the cable ends as stated above. Connections should be water tight.
3. Trim the RED wire (power cable) within 18" of the battery and strip1/2"of insulation from the end of the wire. Cut the wire
loop that is attached to the fuseholder in half and splice the fuse into the power line using appropriate inline connectors.
Use the section of cable that was trimmed earlier and connect it to the other end of the fuseholder.
4. Strip 1/2" from the battery end of the power cable and crimp a large ring terminal to the cable. Use the ring terminal to
connect to the battery positive terminal.
DO NOT install the fuse at this time.
5. Prepare the BLACK wire (Ground cable) for attachment to the amplifier by stripping 1/2" of insulation from the end of the
wire. Insert the bared wire into the GND terminal and tighten the set screw to secure the cable in place. Prepare the
chassis ground by scraping any paint from the metal surface and thoroughly clean the area of all dirt and grease. Strip the
other end of the wire and attach a ring connector. Fasten the cable to the chassis using a non-anodized screw and a star
washer.
6. Prepare the REM turn-on wire for connection to the amplifier by stripping 1/2" of insulation from the wire end. Insert the
bared wire into the REM terminal and tighten the set screw to secure the cable into place. Connect the other end of the
REM wire to a switched 12 volt positive source. The switched voltage is usually taken from the source unit's accessory
lead. If the source unit does not have this output available, the recommended solution is to wire a mechanical switch in
line with a 12 volt source to activate the amplifier.
7. Securely mount the amplifier to the vehicle or amp rack. Be careful not to mount the amplifier on cardboard or plastic
panels. Doing so may enable the screws to pull out from the panel due to road vibration or sudden vehicle stops.
8. Connect the source signal to the amplifier by plugging the RCA cables/high level inputs into the input jacks at the amplifi-
er.
9. Connect the speakers. Strip the speaker wires 1/2" and insert into the speaker terminal and tighten the set screw to secure
into place. Be sure to maintain proper speaker polarity. DO NOT chassis ground any of the speaker leads as unstable
operation may result.
10. Perform a final check of the completed system wiring to ensure that all connections are accurate. Check all power and
ground connections for frayed wires and loose connections which could cause problems.
NOTE: Follow the diagrams for proper signal polarity.
INSTALLATION
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