Giant Diamond Resonators (U.S. Patent No. D364168) – With a 5” diameter x 2.25” high body which holds three times the volume of ebony reservoir then the Ultra Diamond Resonators, this is truly the ultimate enhancement device of your electronic the 1/2” diameter steel shank carries a half-carat natural diamond point. Each time this is tested under any electromechanical equipment the improvement leaps several letter grades for the entire Hi Fi system and brings fidelity to new heights. At present due to the difficult of obtaining large pieces of ebony this is only produced in very limited quantities.