Correct way to attach speaker wires... Wait, what!!!

Bare copper is bad due to oxidation. The best long term solution is a crimped on banana or spade.

Spades and screw materials should be SOFT! Cheap spades using pot metal or hard brass core are the worst. You want the spade to give and be pliable enough to give you the best contact area.

A symptom of having too hard materials is you can't finger tighten them well without a risk of them coming undone.

I think WBT has spades with spring loaded construction exactly to solve this issue.

Best,

E

Better to solder the connection to the spade or bananas you get a much higher contact area and it will stay secure longer then a simple crimp. Also more corrosion resistant. tin'd bare wire is also good or even bare wire. In the industrial military electronics world you would never use a simple crimped on connector unless you wanted it to fail or lose conductivity. Just my 2 cents 

Thanks guys. Hey Erik what is WBT?

Heat from solder can be bad for high-end wire that's why many higher-end manufacturers Just a use a quality crimp on connector I use Analysis Plus cables and they are by no means the cheapest they use a very soft brass pressed on terminations

Hi Autre, WBT is a famous German connector manufacturer.

http://partsconnexion.com/connectors_brand_wbt.html