Description: 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 ]
