This is where Mapleshade speaker wires are terrific. They sound good and of course their small awg works without any modification. If you are not in love with the 14 gauge wire you have, that is your solution.
Connecting amp to vintage speakers
Looking for suggestions to connect 14 gauge speaker wire to vintage (JBL L300) speakers. The push terminal holes are too small for the speaker wire and banana plugs are much too large. Anyone with experience with this, your response is welcome. I do not want to change the original push terminals on the speakers.