A

ELECTRONIC SOUND EQUIPMENT-NAMELY, SOUND MIXING CONSOLES, DIRECT PICKUP ADAPTOR, HEADPHONE DISTRIBUTION BOX, TELEPHONE RECORD/PLAY ADAPTOR, AVERAGE PEAK LEVEL INDICATORS, JACK FIELDS, PATCH PANELS, REGULATED POWER SUPPLIES, AUDIO SIGNAL PROCESSING EQUIPMENT SUCH AS EQUALIZERS, FILTERS, LIMITERS, COMPRESSORS, PHASE METERS, SIGNAL DELAYING DEVICES