If sound quality and longevity are priorities, oxygen-free copper is the way to go. Speaker wire also comes in two primary ...

"As long as the installer follows typical best practices, CCA performs just as well as solid copper wire." Their observations have been reaffirmed at the highest levels by federal safety agencies.

When solid copper is placed in Ag+ solution ... in the shape of a Christmas tree which is suspended from the top of a 1L beaker. To suspend, use wire through a small hole in the metal sheet and twist ...