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9
13mm (
1
/2”)
548mm (21
5
/8”)
225mm (8
7
/8”)
Choose the Mounting Location
Plan your installation so that the amplifier is mounted where adequate ventilation is available.
Never mount an amplifier in the engine compartment of a vehicle!
WARNING! Before driving the mounting screws through any surface, be sure of what is behind that sur-
face. Check for gas tank, brake lines, and any vehicle wiring harness.
Installation—Amplifier Mounting
GT-42
12.6–14.4VDC
B+ B+
GROUND
GND
GND
L
R
MONO
FRONT SPEAKER OUTPUT
MONO
REAR SPEAKER OUTPUT
L
R
ON
SAFE
STATUS
57mm (2
1
/4”)