Dedicated power

I did dedicated lines many years ago and got blacker background. But when you say "sounds like they are straining somewhat when you crank things up". Sounds to me your amp might be running out of steam. What's your amp and what speakers are you using and their efficiency?

I'm curious -- I've never heard of a 30A dedicated line, though I've heard of 15 and 20A. Why is 30A needed? 

In many jurisdictions, a 30A line will require a receptacle rated at 30A, and that won't be compatible with the 15A or 20A plug you'll find on your component. In any event, I'm not aware of any amplifier that requires a 30A line.

Hmm ill check into local codes on the 30a line.. 

I basically just want to be ready for anything I get. Parasound hca 3500 or Musical Fidelity kw500 I hear it is reccomended 30a and I am looking at both of those. 
Running a temporary amp Aragon 2002 at the moment with Pioneer S-1ex speakers. I'm not totally convinced its a power issue but rather a room overload issue at 90-100 db which i don't listen to all that often. We shall see.