8″ Can Ceiling Speaker “SUB”. Thru Mode 100W, Transformer Taps at 60w, 30w, 15w, 7.5w and 3.75w (70V),100V capable, 8″ woofer with 1.2″ VC, PP cone and rubber surround; 120 Hz crossover frequency; Easy, attractive install; Ideal for high-intelligibility voice, music and signal reproduction in commercial, industrial and institutional applications. High-impact polystyrene with removable locking installation arms, back can of formed steel, conduit-capable clamp for wiring, wiring chamber with screw lock, perforated metal grille with inner fabric liner for “blackout”. The PHR 860S subwoofers are sold as pairs.