Profile: Suppression Devices is a manufacturer of audio capacitors. We provide Ansar brand of supersound capacitors, along with a range of high voltage polypropylene capacitors suitable for X and Y applications including feed-through capacitors. We specialize in designing and producing the components for use in a variety of high end audio equipment. The stringent quality control and attention to detail in the manufacture of these types of component is essential for the demanding requirements of the audio industry. We can design a general purpose open filter assembled on a printed circuit board.