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The new KEF R series sits comfortably between the Q and Reference ranges. Utilising technology developed for the Blade speakers, they offer a quality of sound close to the Reference range at a more affordable price.
500w active subwoofer
Class-D amplification in a twin 250W configurationMore Info...
Class-D amplification in a twin 250W configuration▲
The amplifiers of the R400b subwoofers power each drive unit separately to improve and extend the bass response of the subwoofer
Two 225mm (9”) long-throw drivers
Drive units mounted in a rigid back-to-back “force-cancelling” layout, similar to the Blade reference speakers
