PHASEMATION

Amplifiers; audio frequency machines and apparatus, namely, phono-equalizing amplifiers, control amplifiers, [ preliminary amplifiers, main amplifiers, ] power amplifiers; [ compact disc players; ] electrical phonograph record turntable cartridges; parts and accessories for telecommunication machines and apparatus, namely, [ personal headphones for use with sound transmitting systems, digital media music servers, A/D converters, D/A converters, ] audio cables; electrical transformers