When can you use a DMX câble as an audio câble ?

Hi,

I bought a big set of cables, got audio but DMX cable as well, including one on a turret.

I have only audio needs, and I was told that DMX work well as audio câble, but AI tells me about situations depending on speakers configuration.

It's about when the speakers doesn't have an amplifier, résistance may be a problem.

Does someone knows when it is perfectly ok to use DMX cable as audio câble ?

Thanks in advance