The word "coaxial", or coax, merely means "sharing one axis", having the same center, concentric. Any shielded, single-conductor cable qualifies. We usually mean an RG type of cable when we say coax.

Shielded cables can have any number of conductors within the shield, and there are even cables with more than one group of shielded conductors, such as an S-video cable, multi-channel interconnects, or RGB(HV) cables.

The specific answer to your question is that most coaxial cables can be used for any signal requiring similar or lower bandwidth. A cable designed for RF will carry audio better than an audio cable will carry RF.

Larry
www.fineelectricco.com