I should be getting my Yamaha HTR-5650 via UPS in a few days and I plan on buying the Athena AS-F1 floor standing speakers and the AS-C1 center channel very soon. My question is: Can I just hook these up with bare wire or do I need "banana plugs" or something like that. I've got some cable ends that didn't come with any directions. Do they normally just twist on to the end of the bare speaker wire?