The SA28 was designed as multi-purpose, dedicated low frequency/bass “workhorse” system for medium to large scale sound reinforcement duty. Its durable construction and reliable performance make this system an excellent choice for pro sound companies The SA28 offers high quality bass output in a manageable, durable enclosure. This system also integrates easily with other McCauley SA(tm) products, offering consistent coverage and a uniform appearance. The SA28 is a dedicated LF / subwoofer system in a rectangular, computer optimized enclosure. Loud speaker complement consists of a single 18” LF woofer loaded into a vented sub-enclosure. The entire enclosure is constructed of durable 12-ply void-free birch laminate, dadoed for strength and durability. Handles are balance-optimized to faciliate transportation. Perforated steel is employed for frontal protection of the loud speaker complement.