Wire gauge & impedance calculator
Power wire gauge
Total amp RMS (w) Run length (ft) Voltage Efficiency %Final impedance
Subs Voice coils/sub Ohms per coil Coils wired Subs wiredEstimates only; verify with your amp manual. Copper resistance per 1000 ft from standard AWG tables.
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Data from public dyno-test videos; each amp cites the tester and video. Results vary with voltage, unit and test setup.