Wire Gauge Guide
If necessary, you can use longer cables for your installation.
NOTE:
If you are using aluminum or tinned wire, you should use a wire two gauges larger than the gauge listed below to compensate for a potential voltage drop due to the wire material.
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Use 16 AWG (1.31 mm2) for speaker wires.
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Use 20 AWG (0.52 mm2) for LED wires.