KEF Reference 8b Subwoofer

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  • $ 6,999.99

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For power with accuracy the Reference 8b sub has two 500W Class D amplifiers, each driving a 228mm (9 inch) long-throw, ultra-low distortion driver. These are connected back-to-back in a heavily braced, acoustically inert cabinet. The result is low distortion bass with effortless body and weight.


  • Frequency Range: Free Field: 18Hz (-6dB)
  • Frequency Response: 24Hz at 90dB output in free-space mode (±3dB)
  • Net Internal Volume: 23L
  • Maximum Output: 110dB (peak sound pressure level at 1m 50Hz)
  • Amplifier Type: 2 x 500 W Class D with switched mode power supply and DSP based control section
  • Drive Units: LF 2 x 225 mm (9in.)
  • Power Requirements: 100V - 120V / 220V - 240V ~50/60Hz
  • Weight: 34kg (75lbs.)
  • Dimension: H x W x D : 398 x 365 x 429 mm (15.7 x 14.4 x 16.8 in.)

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to



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