The AC28 was designed as multi-purpose, dedicated low frequency/bass “workhorse” system for medium to large scale sound installations. The AC28 offers high quality bass output in a manageable, durable enclosure. This system also integrates easily with other McCauley AC(tm) and SA(tm) products, offering consistent coverage and a uniform appearance. The AC28 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. McCauley’s rugged ProCoat(tm) elastomeric finish provides excellent weather protection and will resist scratches and scuffs. Binding posts are located on a recessed steel jackpanel on the back side of the enclosure. Perforated steel is employed for frontal protection of the loud speaker complement.