Hello Fender fanatics: I've got a Zinky era Vibrasonic. I like it as is but it weighs 81 Lbs. So I'm looking for a 15" neo that would have the right character. Guess this stock speaker is a JBL clone. Hate to change it, but I would not mind not carrying that magnet around. What Neo ? Is there a 15" anyone might recommend in this application.