12-14 gauge wiring, I have recently started to prefer using 12 gauge for no particular reason than Axiom sells it for a respectable price and Monoprice.com sells it for cheap and it is good enough wire a little stiff compared to Axiom's ultra pliable wire. Using 12 gauge also eliminates any 'what if' scenarios. Many folks use banana plugs for the back of the receiver and others use them for the speaker connections or both, so really it comes down to personal preference. If you are looking to use the stock wall mount for a QS series you won't be able to use anything but bare wire, which is fine too as this is the simplest connection and cuts down on the number of connections between the amp and the speaker, less likely to incur connection related problems.
