Friction activated acoustic musical instrument

MUSICAL INSTRUMENT AMPLIFIERS AND COMPONENTS THEREFORE, NAMELY, AUDIO SPEAKERS, SPEAKER CABINETS, SPEAKER ENCLOSURES, SOUND AMPLIFIERS, PRE-AMPLIFIERS, SOUND PROCESSORS AND MODIFIERS, NAMELY DELAY, REVERB AND DISTORTION EFFECTS BOXES, BOTH FOOT OPERATED AND SPEAKER HEAD MOUNTED UNITS.

metal name badges

Signal processors; sound crossovers; audio and video signal enhancers and audio electronic components, namely, amplifiers, transmitters, receivers, distribution amplifiers for audio and video signals, preamplifiers, audio mixers, sound boards, electronic circuit cards for providing signal processing, converters, audio and video tape recorders and decks, CD recorders and decks, DVD, Blu-ray and digital recorders and decks, sequencers, microphones, loudspeakers, earphones and ear buds

Audio amplifiers

LOUDSPEAKERS

speaker system comprised of woofers, a passive crossover and tweeters designed for use in an automobile