What is everyone using for dedicated AC lines???

I need to buy some dedicated AC cable.

What is everyone using? Romex?

I want the best performance, I will tear out the cable when I leave the house. If its not up to code, oh well, I'd rather have better performance anyways.

I thought about 10/3 Romex for the amp and 12/3 for the CD/Preamp.

What do you think?

Please, no arguements over this I need to buy cable ASAP!
I use Accustic Revive inwall cable which uses solid core 10 g wire for my digital front end and 8 g solid core for my amp.
Note that the world-wide price of copper has about doubled in the past year.
10 awg Romex with Hubble or PSAudio power port.