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U s e r m a n u a l
3 - Cabling your FPX amplifier
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Do not run the power cables near the low level inputs, high level inputs, antenna or sensitive equipment or
cabling. The power cables carry a high current, capable of interfering with the audio signal.
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Use the shortest possible cable lengths to optimise the quality of the installation and limit signal losses.
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Before beginning the connection phase, remove the negative (-) terminal from the battery of the vehicle
(fig.1).
3.1 Choosing cable of the correct gauge
Your FPX amplifier requires a power supply of the correct amperage.
The cable gauge to be used depends on the distance of the cable from the battery, as recommended in the following table:
Amplifier
FPX 4.800 and
FPX 2.750
FPX 1.1000
FPX 4.400 SQ
It is essential to scrupulously adhere to the recommendations in this table for the safety of your electrical system; it
is also important to maintain the maximum performance of your FPX amplifier.
3.2 - Cabling your FPX amplifier's input signals
Route all the modulation cables (RCA), speaker cables, and the REM cable together, isolating them from other high-
power consumption equipment in the vehicle and, in particular, electrical motors (e.g. windscreen wiper motor, etc.)
Do not cut any cables down yet. You will do this later.
3.3 – Wiring your FPX amplifier's power supply
3.3.1 – Route the positive (+) power cable, taking care to keep it away from the cables you have already positioned,
to avoid any interference. DO NOT CONNeCT THe CaBle YeT.
Amperage
60 A
16mm
90 A
21mm
50 A
8mm
Length of cable (meters)
0-2 m
/ 5 AWG
21mm
2
/ 4 AWG
35mm
2
/ 8 AWG
16mm
2
2-4 m
/ 4 AWG
35mm
2
/ 2 AWG
53mm
2
/ 5 AWG
21mm
2
7
4-6 m
/ 2 AWG
2
/ 0 AWG
2
/ 4 AWG
2
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