What do the arrows mean on my cable?

My Signal Cable, Audioquest, Transparent, Raven Audio cables all have a directional indicator no matter if it is Digital or Analog.

My Zavfino Cables cables state a direction by instructing you to have the directional shells farthest from the source.

be sure to plug it into the speaker the right way

Silly rabbit talking about interconnects. 

Arrows are supposed to indicate signal direction.

I’m having great success using an Audio Envy for SPDIF.

Go figure.

Digital coax is either RCA and/or BNC. In any event digital has much bigger bandwidth and SHOULD be RG6 (equivalent) or better.

I spoke with Audience on this. They told me it is just a guide for people to reconnect the cables the same direction when they disconnect and reconnect. Flipping the direction of the cable is fine, it just takes some time to settle in if you do that. If you reconnect in the same manner as the original connection there is no need for the cable to resettle.