All I can say is be very very careful removing the cables. Don`t want to mess up the rca much less the jack on the equipment. I use Kimber and Cardas cables and I prefer the Cardas because of this very thing thats happened to you. Had the same thing happened to me and I turned the equipment off and let it cool down and got some of those rubber thingies that remove jar lids from the fridge....and that worked but never again will I over tighten those things.
Good luck,
Happy Listening
