Abstract: A floating metallic striker plate with a transducer positioned by selective antinode alignment at the resonance point of the striker plate, i.e., the point of greatest vibration. A thin disk made from a plastic laminate or wood veneer is positioned at the bottom of a metallic shell and held in place by a locking rim. A metallic bottom plate is placed on top of and attached to the disk. An isolation ring and isolation foam disk are attached to the bottom plate. The metallic striker plate is attached to the isolation ring and interior surface of the shell by silicon adhesive. A flat transducer with electrical connections to a jack in the side of the shell is attached to the striker plate undersurface at the plate's resonance point. A pure gum rubber disk is attached to the striker surface of the striker plate.