Kenwood KAC-648S Instruction Manual page 7

Connection
Power wire connection
WARNING
To prevent fire caused by a short in the wiring, connect a fusible link or breaker nearby the battery's
positive terminal.
Power terminal
Power terminal
Connect to their respective terminals the power control wire, power supply wire, and ground wire,
all of which pass through the associated terminal cover. Once the connections are complete,
place the cover on the terminal section.
Wiring
• If a buzzing noise is heard from the speakers when the engine is running, connect a line noise filter
(optional) to each of the battery wire.
• Do not allow the wire to directly contact the edge of the iron plate by using Grommets.
• Connect the ground wire to a metal part of the car chassis that acts as an electrical ground passing
electricity to the battery's negative - terminal. Do not turn the power on if the ground wire is not
connected.
• Be sure to attach a protective fuse into the battery wire close to the battery. Use a protective fuse
having a capacity that is about 10 A higher than the maximum current drawn by the amplifier.
• Use vehicle-type (fire-resistant) power supply wiring wire for the battery wire and the ground wire.
The current capacity of the power supply wiring wire should be about 10 A higher than that of the
protective fuse capacity (which means about 20 A higher than the maximum current drawn by the
amplifier).
• When more than one power amplifier are going to be used, use a power supply wiring wire and
protective fuse of greater current-handling capacity than the total maximum current drawn by each
amplifier.
Example: One Power Amplifier Is Used
Model Maximum Current
KAC-648S
Terminal cover
Battery wire
Protective
Fuse
Drawn
22 A
Lead terminal
(Commercially available parts)
Power control wire
Ground wire
Lead terminal
(Commercially available parts)
Battery
Protective Fuse
30 A 1 [15 A 2]
CENTER UNIT
Cross-sectional Area of Wiring
Wire (AWG)
3 mm 2 (AWG 12) or greater
English
1
7