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.
Next steps
Weekly: new dyno tests + amp deals
Subscribe to the newsletter (if the form doesn't load)
Data from public dyno-test videos; each amp cites the tester and video. Results vary with voltage, unit and test setup.
Work on cars too? Check out the Tech Survival Guide, written by AmpDyno's founder, a working auto tech.