KEF The Reference 8b Subwoofer

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To experience the full impact of dramatic on-screen effects, bass definition and control are as important as extension. For power with accuracy, the Reference sub boasts two 500W C lass D amps, each driving a 228mm (9 inch) long-throw, ultra-low distortion driver, connected back-to-back in the heavily braced, acoustically inert cabinet. Only a truly great subwoofer could do justice to Reference standards of home theatre, and it does. Model REFERENCE 8b Design Force cancelled closed box LF Drive unit 2 x 225 mm (9in.) Frequency range at 90dB output in free-space mode (-6dB) 18Hz Frequency response at 90dB output in free-space mode (±3dB) 24Hz Amplifier 2 x 500 W Class D with switched mode power supply and DSP based control section Maximum output (peak sound pressure level at 1m 50Hz) 110dB Low pass filter variable Variable frequency: 40Hz to 160Hz Variable slope: 12dB/oct, 18dB/oct, 24dB/oct LFE mode: 350Hz, 18dB/oct Inputs RCA phono sockets Analog XLR socket Speaker level inputs Link out RCA phono socket Net internal volume 23L Weight 35kg (77.2lbs.) Dimensions (H x W x D) 398 x 365 x 429 mm (15.7 x 14.4 x 16.8 in.) Power requirements 100V - 120V / 220V - 240V ~50/60Hz Power consumption 1000W Finishes Deep Piano Black Show more