Get a few different cables and compare. Coax usually sounds better, but there's an exception to every rule.
If contemplating optical, I bought a Sonicwave glass optical from Amazon for about $25 shipped. Sounds fantastic! For the money, it's easily worth the risk IMO. Just don't bend glass optical cables very much. You shouldn't sharply bend any cable, but glass is obviously more easy to damage.
If contemplating optical, I bought a Sonicwave glass optical from Amazon for about $25 shipped. Sounds fantastic! For the money, it's easily worth the risk IMO. Just don't bend glass optical cables very much. You shouldn't sharply bend any cable, but glass is obviously more easy to damage.