Run at least four dedicated circuits; minimum 20 amp service
Oh no, that's bad advice. I'm all for multiple dedicated lines - although many believe one should suffice - but a 20A line is the maximum you want to install.
Here's a 120VAC 20A receptacle, which will accommodate almost any audio component:
Here's a 30A receptacle. Your gear isn't likely configured for this:
What I do like is derating the line, such as using 8AWG wire for a 20A circuit with a 20A breaker. But using a 20A receptacle with a 30A breaker wouldn't meet code in my state.