What type of wire for dedicated 20A AC lines?

Most of what is published about increasing ampacity is rubbish. Joe AudioPhool installs his hifi in the last socket in a room with daisy chained quick connects. Then installs a direct big ass line and writes about it. The real problem is the daisy chained quick connects. My 10 year old home had a ≈5v no load drop across a dozen q/c on about 75 foot run. All quick connects removed and same, cleaned wire attached to screw terminals. Drop? 0.5v. Same problem exists in older homes with old worn and oxidized sockets.

See http://ielogical.com/Audio/CableSnakeOil.php#ACWiring for all the difference big ass wire will make. What AudioPhools don’t ever seem to comprehend is the peak amplifier current is supplied by the power supply, not the A/C line. Musical peaks are completely asynchronous to the AC line Hz. A 15A breaker can supply about 45A for a couple seconds, long enough to fry your amp and speakers. See https://www.c3controls.com/white-paper/understanding-trip-curves/

See?  Tons of opposing but well-informed opinions whenever this topic comes up!  So weird that gauge of wire could be such a polarizing topic.

There are so many variables that I’m not sure the physics can fully inform the nature of sonic effects of gear.  For certain cabling, including power cords, I can blindly identify which cable is connected when comparing between two cables.  And more expensive doesn’t mean better.  I recently discovered that the generic USB cable that came with my USB reclocker sounds better than the AudioQuest Diamond USB - go figure (AQ Diamond sounds better when connecting my streamer directly to the DAC and bypassing my reclocker however). Didn’t mean for this thread to go down that path, but oh well!

Again, it’s not as if it’s a big cost to get my electrician to go to 10AWG, so if I’m going through all this trouble, that relatively tiny cost in case it does help is definitely worth it.  Peace of mind.  Boy people seem to be passionate about shooting down any need for 10 AWG!  I wonder why that is.
 

Again, it’s not as if it’s a big cost to get my electrician to go to 10AWG, so if I’m going through all this trouble, that relatively tiny cost in case it does help is definitely worth it.  Peace of mind.  Boy people seem to be passionate about shooting down any need for 10 AWG!  I wonder why that is.

I agree!

@nyev 

as i said before, i got a 10-2 dedicated 20 amp line using atkore 10-2 cable. It is very well made cable steel sheathed. 750 for 250 foot line. They only sell in 250 feet. I have 125 left. I also run my best power cable from the dedicated outlet to my QB8 ( that cable is extremely important). Then every component plugs into the qb8. Its really not hard. It yielded great results. Everything was to code. I just followed the advice of someone who sets up systems all over the world and at high end audio shows. He just set up a huge room in Munich. Pretty sure he knows what he is talking about.