Bose Corporation; LG Electronics Inc; Panasonic Corporation; Sony Corporation; Samsung Group; Bowers & Wilkins; Atlantic Technology; Definitive Technology; GoldenEar Technology; Yamaha Corporation; Pioneer Corporation; Philips Electronics NV; Akai electronics; Toshiba; Yamaha Corporation; Harman; Creative Technologies
Ltd; D&M; Monitor Audio; Sharp; Sonos; Koninklijke Philips N.V; JBL Corporation; ; ; ; ; ; ; ;