18g Twisted Pair Cable between Head and Speaker

[scstill]

I have been building speaker cabinets of late to work with a couple of heads I made.
The heads around 20w, the speakers vary at 4/8/16ohm.
I have been making 10' speaker cables out of 18g twisted pair.
Do you see any issue with the cable choice?
Sounds very good in my small room at lowish volume

[mresistor]

I don't see any problem with twisted pair speaker wire.

[Purgasound]

Not a problem whatsoever.  Looks good, too!

18AWG is sufficient to get the job done. 

[scstill]

my biggest issue is what color to pick :-)