Accuphase, Acer, Aiwa, Akai, Asus, Aya, bell, Bluesky, Brandt, Celestion, Compaq, Continental Daewoo, Dell. Denon, Dual, edison, Esart, Fisher, Fujitsu Grundig, Harman-kardon, Hitachi, Hp, Img, Jamo, Jbl, Jvc, Kenwood, Lg, Liteon, Luxman, Marantz, Mitsubishi, Monacor, Nad, Nortek, Oceanic, Onkyo, Packard bell, Panasonic, Peekton, Philips, Pioneer, Pyle, Quad, Radiola, Revox, Saba, Sagem, Samsung, Sansui, Sanyo, Schaub-lorenz, Schneider, Scott, Sharp, Sherwood, Siemens, Sony, Stax, sugden, Targa, Tcl, Teac, Technics, Telefunken, Tensai, Thomson, Toshiba, Vestax, Waltham, Yamaha.