Loudspeakers and loudspeaker systems constructed therefrom; Cabinets for loudspeakers; Frequency crossover networks, power amplifiers and voltage stabilisers; Amplifiers; controllers for speakers; Subwoofers; Horns for loudspeakers; Tuners; Receivers; Digital audio processors; Mounted sound guides for loudspeakers (included in class 9); Sound damping casings, linings and bases of sound damping materials for acoustic purposes; Couplers (acoustic- ); Diaphragms (acoustics); Headphones and headphone receivers; Transducers and high frequency transducers; Electric cables, in particular loudspeaker cables; Casings and shields for loudspeakers and hi-fi systems; Parts and accessories for all the before-mentioned goods (included in class 9).;
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