Features Features customized transducers for superb music reproduction as well as crystal-clear announcements Equipped with internal transformers that allow both high and low impedance drive, which can be selected by simply switching the tap on the baffle Anti-Drop tab allows the speakers to be mounted temporarily in the ceiling for improved safety and ease of installation A flexible carrying band makes the speakers very portable and allows carrying multiple speakers at once Comes complete with O-rings and tile rails for safer and smoother installation Overload protection circuit provided to protect speaker components Comes with paintable speaker grilles for flexible design ideas Specifications Type 2-way, coaxial type, with back can, acoustic suspension Nominal impedance: 8 Ω Power rating (IEC, 100h) Noise: 75 W PGM: 150 W MAX:300 W Sensitivity (1W, 1m): 86 dB SPL Maximum SPL (Calculated, 1m): 111 dB SPL Frequency range (-10 dB): 56 Hz – 20 kHz Crossover frequency (12 dB/Oct): 3.2 kHz Connector: Euroblock (4-pin) x 1 (input: +/-, loop-thru: +/-) Max. wire size: 12 AWG (2.5mm²) Transformer taps: 70 V 60 W, 30 W, 15 W, 7.5 W, 100 V 60 W, 30 W, 15 W Overload protection: Full-range power limiting to protect network and transducers Magnetically shielded: No Enclosure shape: Back Can Back can material: Steel 1mm, Black Baffle material: HIPS Grille material: powder coated perforated steel (t = 0.6mm) Trim Ring: ABS Aperture ratio: 51% Finish: White painting (approximate value: Munsell 5Y9/05) Dimensions (Speaker only): 11-¼" dia. x 8-1/16" D Net weight (Speaker only, 1 piece): 4.4 kg (9.7 lbs) Cutout size diameter: 9-¾" Required: ceiling board thickness 1mm – 35mm Conduit tube: up to ½"