5
Power Cable
Ground Cable
Auto Turn On (High level Input Only)
RCA Cables
• At least 10 gauge cable should be used for the ground connection to the amplifier.
• The amplifier ground should be connected directly to the chassis of the vehicle, to
bare metal.
• The cable length should be kept to an absolute minimum.
• It is not recommended that you connect the ground cable to the vehicles seatbelts
anchor point.
• At least 10 gauge cable should be used for the power connection to the amplifier.
• The power cable should be taken directly from the battery. Rubber grommets should be
used when passing through any bulkheads to prevent the cable from becoming chaffed
or cut.
• It is vital that a 40 amp fuse / circuit breaker is placed inline with the power cable and is
no further than 18 inches away from the battery.
• Please ensure that the fuse is not fitted until the entire installation procedure is com-
plete.
• The Powerbox amplifiers feature an auto turn on circuit called Autosense.
• This circuit allows the amplifier to switch on and off without a remote turn on wire
when using high level input, for low level input (RCA) it will still be necessary to
connect the remote turn on wire from the headunit.
• When the connected source (headunit) is turned on the amplifier will turn on
automatically, after the connected source (headunit) is turned off the amplifier will
shut down.
• It will be necessary to connect an RCA plug to the speaker output of yout headunit,
please ensure correct polarity or a loss of bass will result
Centre pin : Positive
Outer pin : negative
• Please take extra care when running these cables from the source to the amplifier.
Ensure that they are placed away from all items that can generate any interference,
wiring harnesses etc.
• It is recommended that the RCA cables should be run on opposite sides of the car
to the previously installed power cables if possible, to avoid the cable picking up
interference.
