EN-28
Device connections
Notes of connection
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This unit is designed to be used in a vehicle with a 12-volt battery and negative grounding.
Before installing this unit to a recreational vehicle, a bus, or a truck, make sure the battery
voltage is appropriate for this unit to be used, otherwise, install a transformer by professional
to convert the output voltage to 12V.
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To avoid short circuit in the electrical system, ensure that the negative battery cable is
disconnected before installation.
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To prevent short circuit in the wiring and damaging to this unit, secure all wirings with cable
clamp or adhesive tape. Route the wirings in a secured, out of heating place without touching
any moving parts such as gear shift, handbrake, and seat rails to prevent the wiring insulation
being melted / wore off.
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Never pass the yellow power cord through the installation hole into the engine compartment
and connect to the car battery. Otherwise, a high possibility of serious short circuit to the
electrical system may be occurred.
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Replacing a new fuse with 10A rating when the old one is broken, using no fuse or fuse with
improper rating may cause damage to this unit or even res. If a proper fuse is installed and
electrical problems still occur, please contact with any professional car shops for inquiry.
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DO NOT connect other equipments with the car battery to avoid battery overheating.
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Please make sure all the wiring connections & the cables of the speakers are well-insulated.
Otherwise, this unit may be damaged by short circuit.
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If there is no ACC available, please connect ACC lead to the power supply with a switch.
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If an external power amplier is connected, please don’t connect P.CONT lead to the power
lead of the external power amplifier, otherwise, electric spark or other damage may be
resulted.
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Never ground the speaker output to prevent the damage to the built-in power amplier.
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The minimum rating of the speakers connected to this unit is 50W with 4 to 8Ω impedance.
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