professional subwoofer (MR-215) 1. super good heavy bass 2.dual ... stock 4.CE&ROHS Professioanl speaker / water proof subwoofer (MR-215)MR-215 Characteristic:(1) CE & RoHS (2) Durable, high ... OhmDispersion Angle/Size (cm)102*69*50N.W.62 kgUnitPair MR - 215 box all adopt 18 per cent, and ... nightclub, churches, hall, conference room, hall, multi-function hall. (MR-215) Professioanl water-proof subwoofers