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SPEAKER OUTPUT
CONNECTING THE WIRES
LOAD
Please be aware of the minimum impedance you may apply to your particular model amplifi er. See chart below for more informa-
tion. Any lower impedance than the minimum can send the amplifi er into current protection or possibly damage the circuitry. To
prevent damage, use the following formulas to help you fi gure out the load you are placing on your amplifi er. If you have any dif-
fi culties, please contact your local Crossfi re dealer or Crossfi re’s Technical Assistance at tech@crossfi recaraudio.com
WIRING
Always choose speaker wire wisely. Make sure that the wire is appropriate for the speaker you are applying it to. It is highly recom-
mended not to use anything smaller than 16awg. Consult your dealer. As with the power wires, use caution around sharp corners
or body parts that may easily cut through the insulation on the wire. If running into the doors, it is important to use a protective
boot in the door jam to protect the wire from being pinched as well as keeping water or moisture from entering the vehicle. Use the
factory boots whenever possible. And always make sure the wire is out of the way of the window track. To connect the wire to the
speaker, strip off approximately 1/2” inch (12mm) of the insulation and terminate the wires using insulated speaker terminals (not
supplied) or by soldering the connection to the loudspeaker. Be sure that the polarity at the loudspeaker is correct.
At this point, the power, ground, remote, and speaker wires should be run to the general location of where the amplifi er is to be
mounted. If the wires are to be hidden under the carpet, you now need to cut a slit for them to come through. To do this, place
the amplifi er in the location it is to be mounted to verify where the slits need to be. Make sure that there will not be a confl ict
with the mounting of the amplifi er and the wires. Pull the wires through the slit to the terminals leaving approximately 6” (150mm)
of slack and cut the wires to an equal length. Locate the spade connectors supplied with the amplifi er. Strip approximately 1/2”
inch (12mm) of insulation from the end of each wire. Crimp the spade connectors onto the stripped end of the wire. Loosen the
terminal screws on the amplifi er. Insert the wires into the proper terminals and tighten the screws securely. Check your connec-
tions by giving the wires a slight tug.
NOTE: Not all models have screw type connectors. Other models use “Discrete Mount” connectors which require bare wire instal-
lation (no connector needed).
