9 APPARATUS FOR RECORDING, TRANSMITTING AND REPRODUCING SOUND, NAMELY, COMPACT DISCS, TAPE RECORDERS, CASSETTE RECORDERS, DISC RECORDERS, RADIO TRANSMITTERS, CASSETTE PLAYERS, RECORD PLAYERS, AUDIO RECEIVERS, VIDEO RECEIVERS, LOUDSPEAKERS, ACOUSTIC BAFFLES; PREAMPLIFIERS, AMPLIFIERS, COMPACT DISC READERS, ACOUSTIC CHAMBERS, SECTOR FILTERS, CABLES FOR AUDIO OR VIDEO SYSTEMS; HIGH FIDELITY AUDIO OR AUDIO-VIDEO SYSTEMS COMPRISED OF AUDIO RECEIVERS, VIDEO RECEIVERS, TUNERS, AMPLIFIERS, CASSETTE PLAYERS, DISC PLAYERS, COMPACT DISC PLAYERS, DIGITAL VIDEO DISC PLAYERS, LOUDSPEAKERS, ACOUSTIC BAFFLES, AND PARTS FOR AUDIO OR AUDIO-VIDEO SYSTEMS SOLD THEREWITH