I'm getting banana plugs for everthing and I wonder if I should get the dual or single banana plugs for the receiver. It's a Harman Kardon...would the binding posts be the same distance apart as they would be on the axiom speakers?

Get the singles. It's more flexible.

I bought these, and they were very high quality.

Saint,

Get singles for the receiver end. The Harmans a couple of years ago (my H/K) did not have correct spacing for dual plugs. Axiom speakers do have standard spacing.

Regards,