I found a spool of 18 ga Acoustic Research 100' at Best Buy for $20, not too bad. If anyone else is planning on using new wire I wouldn?t try anything larger then 18 ga. 16 may work but it would be tight, not to mention over-kill.
What gauge is the wire that came with the speakers? I need a little more...five feet maybe. Also, what would you connect the two wires with? I've seen some that twist the two together...
I would guess it's prolly 22 ga or smaller, and as far twisting the wire together I wouldn't I pretty much makes the whole point of using better wire pointless.
One more thing...How far should the sub's port be away from another surface (desk wood, etc.) so that it doesn't shake it/distort the sound?
As long as the port can move air its not going to affect the sound a few inches of free space should be fine.
Heavier guage wire usually helps transfer more bass signal....these certainly don't need that. Even with the bass turned all the way down, I still had to use my TBSC's EQ to turn it down further
Though some people might try to convince you otherwise, the only real difference a thicker wire is going to make is power handling and efficiency of that power, which can translate in better SQ.