I'm wondering what the best way to connect the speaker wire to banana plugs. I'm about to connect 7 speakers to Denon 3802 with banana plugs. I notice the wires, some run thru the walls almost 15 years ago, are oxidized. I was planning to cut off the ends and create fresh ends. Would there be an advantage to solder the ends of the multistrands prior to connecting them to the banana plugs (they screw down to tighten)to prevent oxidation of each individual strand? I have termiations in other speaker wires where the multistrands are soldered to a solid piece of copper wire to make the connection to the speaker or amp (probably to reduce the diameter for the connection). This would be relativly easy to do by soldering the stripped conductor from some 14 guage romex to the multistranded end of the speaker wire. On a previous post someone mentioned coating the end of the wire with vaseline. It would seem to me that the vaseline coating would somehow interfere with the information transferring through the connection. I doubt that vaseline is a very good conductor. You certainly could not conduct much of an electrical current thru a glob of vaseline. Years ago we used to coat our RCA jacks with different chemicals to try to prevent the oxidation between the RCA jack and the plug. Thoughts, comments, electrical engineers with data would be appreciated!