Cabinets for loudspeakers; Loudspeaker cabinets; Loudspeaker systems; Loudspeakers; Loudspeakers with built in amplifiers; Amplifiers; Audio amplifiers; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Distribution amplifiers for audio and video signals; Guitar amplifiers; Musical instrument amplifiers; Power amplifiers; Sound amplifiers; Sound mixers with integrated amplifiers; Stereo amplifiers