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KEF R400B

R400B

115,000.00 /Unit

Description

KEF R400B

The R400b’s reinforced and solidly braced cabinet houses twin 9in. LF drivers powered by twin 250W Class-D amplifiers. The drivers are mounted back-to-back: This ‘force cancelling’ arrangement nullifies opposing reactive forces. The result is virtually no cabinet agitation and therefore a clean, fast, powerful bass performance.
Legendary KEF R Series
Featuring many of KEF’s latest innovations in premium hi-fi and home theatre loudspeaker technology, the R Series makes genuine audiophile standards of entertainment more affordable than ever before. Stunningly fluent Uni-Q driver arrays combine with potent new bass drivers and many ingenious refinements to create a rich, spacious sound image of such accuracy that it approaches the benchmark standards of KEF’s legendary Reference Series.

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Model: R400b
Design: Powered Subwoofer (Sealed)
Drive Units: Bass units
LF: 2 x 225mm (9in.)
Frequency range (-6dB): 26Hz – 140Hz
Maximum output: 111dB
Amplifier: 2 x 250W (500W) built-in Class-D
Low pass filter Variable
40Hz – 140Hz, 4th-order
Low level signal inputs
RCA phono sockets
Speaker level inputs
Internal volume

  • 22 litres
  • 100V – 120V / 220V – 240V

Power requirements: ~50 / 60Hz
Power consumption: 600VA
Weight: 21.5kg (47.4lbs.)
Dimension (H x W x D)(with terminal & plinth)

  • 365 x 330 x 351 mm
  • (14.4 x 13 x 13.8 in.)

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