Cinema Sound 3000 : 4000 : 5000 : High Powered Screen Arrays : ScreenArray Systems (2 way) : ScreenArray Systems (3 way) : Subwoofers 4000 Series : Surround Systems       4648A Low Frequency System 4648A-8 (8 ohm) and 4648TH   Spec Sheet The 4648A system is designed for general reinforcement and motion picture theater use where high power output with smooth power response and low distortion are essential. Features :   Specifications : Usable Response to 35 Hz 100 dB Sensitivity, 1 W, 1 m 1200 W Power Capacity Two 380 mm (15 in) Low Frequency Transducers Direct Radiator Ported Enclosure   Low Frequency Drivers   :   2) 2226H Frequency Range   :   30 Hz - 1.8 kHz (-10 dB) ower Capacity (Continuous Pink Noise)   :   1200 W Power Capacity (Continuous Program)   :   2400 W Sensitivity   :   100 dB SPL (1W, 1m, 3.3ft.) Crossover Frequency   :   500 to 800 Hz recommended Nominal Impedance   :   4 Ohms Dimensions (H x W x D)   :   991 x 648 x 451 mm (39 x 25.5 x 17.75 in) Net Weight   :   42.7 kg (94 lb)