Cinema Sound 3000 : 4000 : 5000 : ScreenArray Systems (2 way) : ScreenArray Systems (3 way) : Subwoofers 4000 Series : Surround Systems   The 4000 Series of cinema loudspeakers meets the needs of sound designers and theater owners, delivering the finest sonic reproduction possible. These JBL Cinema Sound Systems are designed for biamplified applications as well as systems with built-in passive crossover networks. The passive cinema systems feature new low frequency transducer technology utilizing a newly designed magnetic structure that reduces both second and third order harmonic distortion. A new copper shorting ring allows this driver to provide more constant power response which allows the low frequency cabinets to deliver equal "energy" into the listening space at all frequencies. Those systems designed for bi-amplified applications incorporate JBL's exclusive Vented Gap Cooling (VGC™) woofers which significantly reduces the operating temperature of the voice coil, thereby delivering maximum peak impact with minimal power compression. Low Frequency Drivers Frequency Range Power Capacity (Continuous Pink Noise) 4638 Low Frequency System 2035H 30 Hz - 5 kHz (-10 dB) 800 W Low Frequency Drivers Frequency Range ower Capacity (Continuous Pink Noise) 4648A Low Frequency System 4648A-8 (8 ohm) and 4648TH 2) 2226H 30 Hz - 1.8 kHz (-10 dB) 1200 W Frequency range Frequency response Power capacity1 4670D Cinema Loudspeaker System 34 Hz - 20 kHz (-10 dB) 40 Hz - 16 kHz ( ± 3 dB) 600 W continuous pink noise Low Frequency Drivers High Frequency Driver High Frequency Horn 4675C Cinema Loudspeaker System (2) 2035H 2446H 2360A Low Frequency Driver High Frequency Driver High Frequency Horn 4675C-4(8)LF Cinema Loudspeaker System (2) 2226H 2446H 2360A