however, especially because it's so darn affordable, I would encourage you to step up on the gauge, so that you won't ever have to worry about it. Seeing that 100 ft of 12 gauge is only $28.35, I don't think you will worry about wasting too much cash.
You are right that thickness of wire necessitated depends on length of run, but also the minimal impedance of speaker. Even if you ever change to fancy schmancy speakers, you won't have to get new wire. Ok, fine, you know what, you're probably just fine with 16gauge. But the 12 gauge only costs you $13 more for 100 ft no less.
Make sure to twist your wires if using bare wire. Strip and cut for new wire every now and then to get rid of corroded wire that might with impedance.
Or you can use some banana plugs and never worry about the above.
Hi - anyone have a good recommendation for speaker wire for my home theatre set up? I was hoping to get something fairly cheap from monoprice.com, but I want to make sure that's ok to do...and I'm guessing I need 16 gauge, is that right for about 20-30' away? Thanks!