
STARTED A FEW MONTHS AGO I STARTED RUBBERING THE SPEAKERS OF TWO DIFFERENT OUTDOOR AUDIO SYSTEMS I USE FOR WATCHING MOVIES (DVD/BLURAY/TV). I EVEN HAVE A TECHNICIAN FROM THE SERVICE PROVIDER (SPECTRUM) CHECKING THE CABLES ON THE ROOF. HE CONFIRMED THAT THE "RUBBER" COMES FROM THE "MAIN FEED CABLE" AND SAID NOTHING CAN BE DONE. THEN A FRIEND RECOMMENDS INSTALLING A "GROUND LOOP ISOLATOR" BETWEEN THE CABLE FROM THE ROOF AND THE JUNCTION BOX ENTRY. IT WORKS OUT! NO MORE "GUMA" IN ANY SYSTEM! IT IS REALLY REMARKABLE THAT "SPECTER" DIDN'T KNOW THIS SIMPLE SOLUTION.