sound and audio reinforcement systems, namely speaker enclousures, acoustic lenses for use in focusing the soundwave of speakers; electronic audio devices, namely active crossover - control units to divide frequency and protect speaker components

'acoust':9 'activ':23 'audio':3,20 'compon':33 'control':25 'crossov':24 'devic':21 'divid':28 'electron':19 'enclousur':8 'focus':14 'frequenc':29 'lens':10 'name':6,22 'protect':31 'reinforc':4 'sound':1 'soundwav':16 'speaker':7,18,32 'system':5 'unit':26 'use':12

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