This table is based on a cable length of 5 meters
| Amplifier Power (Watts RMS) | Recommended cable diameter (mm²) |
|---|---|
| Up to 500 Watts | 10 mm² |
| 500 - 1000 Watts | 20 mm² |
| 1000 - 2000 Watts | 35 mm² |
| 2000 - 3000 Watts | 50 mm² |
| 3000 - 4000 Watts and more | 70 mm² |
Remarks
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Precautions : Ensure cables are well protected and insulated to avoid short circuits.
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Fuse : Always install a fuse on the power cable near the battery to protect the cable length in case of an accident.
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Cable Length : For longer cables, it is best to slightly oversize the diameter to avoid voltage losses.
These recommendations may vary slightly depending on cable quality (CCA or OFC cable) and the specific installation, so it is always helpful to consult the amplifier manufacturer's documentation for accurate recommendations.