9 AC and passive AC line filters; amplifiers; antennas; apparatus for recording, transmission or reproduction of sound and images; audio amplifiers; audio cassette recorders; audio circuit boards; audio speakers; audio tape recorders; audio-video receivers; audiovisual receivers; cassette recorders; CD players; CD-ROM drives; combination video players and recorders; digital audio players; digital audio tape recorders; digital signal processors; digital video recorders; DVD recording apparatus; DVD-players; electric audio playback units with lights and speakers; electronic and optical communications instruments and components, namely, digital transmitters; electronic and optical communications instruments and components, namely, optical receivers; electronic and optical communications instruments and components, namely, optical transceivers; electronic and optical communications instruments and components, namely, optical transmitters; home theatre products, namely, digital image processors; home theatre products, namely, liquid crystal display (LCD); LCD panels; loud speaker systems; loudspeakers; loudspeakers with built-in amplifiers; magnetic tape drives; magnetic tape erasers; magnetic tape recorders; MP3 players; phonograph record players; power amplifiers; power controllers; power transformers for amplification; pre-amplifiers; racks for amplifiers; racks for loudspeakers; radio receivers; radio transmitters; radio transmitters and receivers for remote controls; radio controls; radios; receivers for audio and video; receivers for receiving cable television; receivers for satellites; record players; record players for digital compact discs; recording and playing devices for sound and image carriers; remote controls for radios, televisions and stereos; sound amplifiers; sound and video recording and playback machines; sound level meters; sound mixers; sound mixers with integrated amplifiers; sound recording apparatus; speaker enclosures; stereo amplifiers; stereo cables; stereo receivers; stereo tuners; sub-woofers; tape and videotape players; tape recorders; transceivers; transformers; universal digital disc player; video disc players; woofers; electrical apparatus and instruments relative to high fidelity sound reproducing systems, hi-fi equipment, stereo equipment, stereo sound reproducing systems audio transmitting, receiving, recording and reproducing systems, namely, mono-, dual mono-, stereo- and multi-channel amplifiers and electronic amplifiers; digital preamplifiers; preamplifiers and power amplifiers, integrated amplifiers comprising pre-amplifier and power amplifier, compact disc (CD) players; digital disc recorders and players; electronic control units for the reception, processing and transmission of sound signals to one or more loudspeakers using digital signal processing; analog FM tuners, radio receivers, audio receivers (tuner-amplifier combinations); stereo receivers; stereo tuners; digital sound signal processors; multi channel signal processors, audio equalizers; digital video disc (DVD), DVD-Video, DVD-Audio, Video CD, MP3-CD, CD-R/RW, DVD-R/-RW and super audio compact disc (SACD) recorders and players; AC and passive AC line filters; universal digital disc player; digital video converters; digital jukebox for digital music provided from CD-ROMs, discs and the Internet; MP3 players; MP3 jukeboxes; computer software for event scheduling and for managing music in electronic form; entertainment center composed primarily of a DVD and CD player and audio and video equipment allowing for Internet access, recording and playback of music; multi-room hard-wire and wireless audio systems comprising CD-R/RW drives, hard disc drives, radio receivers and MP3 encoders/players; computer software for use in audio jukebox management, and accessing by Internet telecommunication services and on-line music services; single- and multi-room Internet music systems