bass for Dance Music or live Sound durable,steadiable,good price single 18' 15' ,double 15' 18' single 21' all size available discotheque 18" subwoofer DESCRIPTION and APPLICATIONCV-181B is single 18” subwoofer with bass horn loading, specifically designed to reproduce deep bass frequency with maximum efficiency, speed and impact. It is also ideal for reproducing the concentrated energy of ...