Twelve gauge is about the thickness of a nickel, and 14-gauge is about the thickness of a dime. Also, look at the breaker for the circuit in question to see if it’s a 15-amp or a 20-amp breaker.

Speaker wire might not be the most exciting part of your setup, but choosing the right one can make a real difference in ...

A measurement of the thickness of a cable, which is the inverse of its size. For example, the diameter of an 18 gauge wire is 1.02mm, while the smaller number 12 gauge is 2.05mm, more than twice ...