oddly enough, the apt is wired such that all kitchen appliances draw from the 15A circuit that's in the living room. So I don't really have much of a choice but to run from the dedicated 20A in the kitchen.

So, just to make sure...
1) #12 cord is good enough? No need for #10?
2) What constitutes "anywhere close to the power output levels"?

Does that mean if I have 5 monoblocks each eating up 1500W, but b/c I won't play at such loud vols, I can actually run them all on a 15A circuit? (I state this b/c I actually do have monos but have to downgrade since I thought my apt won't be able to handle the load).

Much thanks.