Install A Dedicated AC Line at home

Hey Guys

Another question about installing dedicated 10 gauge wiring for my audio system. Is it necessary to run 10 gauge for all equipment (pre-amps, phono, phono amps, CD player, etc.) or just my mono block amplifiers? 

Thanks.

The total current of everything besides the amplifiers is probably under 2 Amps.  A drop in the bucket and unlikely to cause any voltage sag at all.  

Almost no home system requires more than 15A. A properly installed 15A can supply 20A continuously for about an hour. Other than class A, nothing draws anywhere near that much power.

It’s a bad idea to run multiple circuits for a HiFi, doubly dumb if they are not on the same leg. Earth Safety should be as close together as possible for minimum chance of ’ground’ issues.

On a 20A circuit w ≈700wpc [175wpc tube] and a voltmeter on the input never budges at any volume. Ditto on a ’scope.