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At just 31 inches square, the KEF R400b may be compact, yet it packs an incredible punch. With a reinforced and braced sealed cabinet, the R400b houses twin 9-inch LF drivers powered by twin 250W class-D amplifiers. The drivers are mounted back-to-back, to create ‘force cancelling’. This means the opposing reactive forces are nullified, resulting in no cabinet agitation and a clean, fast, powerful bass performance – perfect for any serious home theatre system.
Available in High Gloss Piano Black or High Gloss Piano White both giving a clean modern look.
Please call for details on the KEF R Series speakers so we can give you all the information required.
|Design||Powered Subwoofer (Sealed)|
|Drive Units||Bass units:
LF: 2 x 225mm (9in.)
|Frequency range (-6dB)||26Hz - 140Hz|
|Amplifier||2 x 250W (500W)
|Low pass filter Variable||40Hz - 140Hz, 4th-order|
|Low level signal inputs||RCA phono sockets|
|Internal volume||22 litres|
|Power requirements||100V - 120V / 220V - 240V~ 50 / 60Hz|
|Dimension (H x W x D)
(with terminal & plinth)
|365 x 330 x 351 mm
(14.4 x 13 x 13.8 in.