Nothing's dedicated, unless the audio is installed on a completely separate phase from the primary phase that powers the house. Most houses are wired on only one phase, referred to as "single-phase."
The only way to make your audio system on a dedicated AC line, is to wire just one AC outlet directly to the mains board, on a dedicated switch/ CB. Install a slightly thicker wire would also help, as long as you're getting 10amps the most. That's more than plenty for hifi, you don't require more than that. These are not industrial welding machines that require and drain large amounts of current. It's just domestic hifi, nothing else!
Check how many phases your house actually has, if there are two phases, then perhaps get an electrician to wire the audio onto a separate phase, one preferably away from the fridge, kettle, washing machine, dishwasher etc. The best would be to wire the audio onto a phase that uses only lights, this is a low to moderate load and the audio will have more than plenty of current available.
This is exactly how I had my system wired back in my homeland, Colombo, where our house actually had three-phase AC mains. However, now we live in Aus, and our humble home is only based on a single-phase, so although I've installed dedicated wiring for the audio, with a separate switch & dedicated CB, that mains board is still sharing the rest of the household's electrical points, simply because everything is loaded onto a single-phase. That's the local building code, nothing we can do about it!
There's a lot of snake oil in this area and we as audiophiles get highly carried away, taking things too far without addressing the basics. Just ask any qualified electrician who has worked on high current installations with multiple phases in both domestic and commercial installations, you'll be surprised at the information on hand!
All the best, and don't get carried away with fancy cables and massive power cords, they're totally unnecessary! Just stick with good quality AWG for your AC lines for wiring the audio, that's about it really!
Cheers, RJ
