Audio basics -- Practial considerations for audio -- Simplified audio design -- Basic testing and troubleshooting for audio equipment and circuits -- Audio amplifiers and loundspeakers -- Am/Fm tuner audio -- Tape cassete audio -- CD audio -- Graphic equalizer and LP turntable audio -- Stereo TV and surround-sound audio -- HIFI audio-tape (VHS, Beta, 8 MM, DAT) equipment

1. Sound -- Recording and reproducing -- Equipment and supplies
2. Sound -- Recording and reproducing -- Equipment and supplies -- Maintenance and repair