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• This unit is for vehicles with a 12-volt battery and negative grounding. Before installing it in a
recreational vehicle, truck, or bus, check the battery voltage.
• To avoid shorts in the electrical system, be sure to disconnect the
battery cable before beginning
installation.
• Refer to the owner’s manual for details on connecting the power amp and other units, then make
connections correctly.
• Secure the wiring with cable clamps or adhesive tape. To protect the wiring, wrap adhesive tape
around them where they lie against metal parts.
• Route and secure all wiring so it cannot touch any moving parts, such as the gear shift, handbrake,
and seat rails. Do not route wiring in places that get hot, such as near the heater outlet. If the insulation
of the wiring melts or gets torn, there is a danger of the wiring short-circuiting to the vehicle body.
• Don’t pass the yellow lead through a hole into the engine compartment to connect to the battery. This
will damage the lead insulation and cause a very dangerous short.
• Do not shorten any leads. If you do, the protection circuit may fail to work when it should.
• Never feed power to other equipment by cutting the insulation of the power supply lead of the unit
and tapping into the lead. The current capacity of the lead will be exceeded, causing overheating.
• When replacing fuse, be sure to use only fuse of the rating prescribed on the fuse holder.
• Since a unique BPTL circuit is employed, never wire so the speaker leads are directly grounded or
the left and right
speaker leads are common.
• The black lead is ground. Please ground this lead separately from the ground of high-current products
such as power amps.
If you ground the products together and the ground becomes detached, there is a risk of damage to the
products or fire.
• If the RCA pin jack on the unit will not be used, do not remove the caps attached to the end of the
connector.
• Speakers connected to this unit must be high-power types with minimum rating of 45 W and
impedance of 4 to 8 ohms. Connecting speakers with output and/or impedance values other than those
noted here may result in the speakers catching fire, emitting smoke, or becoming damaged.