Audio Speakers, Bass Speakers, Loud Speakers, Microphones, Horns for Speaker, Cameras, Electro-acoustic Transducer assembly, Delay reverb to modify sound, Pickups, Audio connectors, stereos, amplifiers, equalizers, crossovers, speaker housings, and power timing devices

Apparatus for recording, transmission and reproduction of sounds and images, particularly amplifiers, digitizers, analog-to-digital converters; accessories for all the aforesaid goods, included in this class, particularly attenuators, stands and bases for apparatus, electric and optical connection cables, connectors and sockets for such cables, power supplies, power units, power supply filters