KOCH

Amplifiers, pre-amplifiers and electrical attenuators for audio signals; loudspeakers; loudspeakers and sound mixers with integrated amplifiers; cabinets for loudspeakers; amplifiers, pre-amplifiers and electrical signal attenuators for musical instruments including bass guitars; electronic volume control pedals for use with sound amplifiers; electric and electronic components in the nature of capacitors, connectors, audio filters, oscillators, relays, switches, transformers, resistors, semiconductors, integrated circuits, rectifiers and transistors; amplifying tubes in the nature of sound amplifiers and bass amplifiers; protective covers and adapted protective boxes and cases for the aforementioned goods; parts for the aforementioned goods, namely, musical instrument adaptors, spare amplifying tubes in the nature of sound amplifiers and bass amplifiers, speaker cables, electronic cables, guitar cables, amplifier knobs, electrical audio and speaker cables and connectors, electronic power conversion devices, electric power converters, and power inverters