Anyone went back to using bare wires on speakers?

There are no connectors on my DIY silver ribbon speaker cables.

Two flat silver ribbons each wrapped in wide Teflon tape, then placed back to back and wrapped again. At the ends, I just folded the ribbon lengthwise and managed a bit of origami to get the right angle and separation of the ends. Then I cut a notch with small scissors and fitted the end to the binding post.

Every year or so I unplug and clean the tarnish off and polish the exposed silver, then clamp them again.

Regards,

I use bare wire on my Revel F52 and Pass amp..

Copper oxide is an insulator; by contrast, Silver oxide is a very good conductor.

http://www.spearitsound.com/siltech/siltech_faq.htm

I thought I remember reading somewhere that although silver does oxidize it does not affect the sound in any way

Tin the ends and that will avoid most of the oxidation, otherwise it is the way to go.