If you use a high quality solid copper adapter, you should not hear a sonic differance.
On the other hand, if you use 24k plated brass ( which in most cases if it's 24k plated it is brass ) they do have a sonic signature.
Get the best you can.
On the other hand, if you use 24k plated brass ( which in most cases if it's 24k plated it is brass ) they do have a sonic signature.
Get the best you can.