I have a PRMIA LCD tv, Harmon KArdon Reciever and a set of Mordaunt Short Towers (908s) in my system. Since I connected the reciever to the tv - when I change channels the Tower speakers "burst" after I flip channels. I had this issue with my subs in my car when I connected a new reciever. I had to put some sort of porcelain piece in between the connection to stop the bust of sound. Any ideas?