... hanging design, convenient for engineering installation Pro sound system ( Professional stage loudspeaker ) 1. Enclosure with ... level 5. Applications: audio engineering, mobile performance speaker system, meeting rooms, KTV etc. entertainment venues Product ... .35kHz PassiveEnclosure42 litre, 15mm MDFFinishBlack textured paintingGrilleBlack triangle perforated steel, with 3mm waterproof cotton pasted ...