If you’re looking for premium speakers to fill your home theater and handle a variety of musical genres, you can’t do much better than the KEF R Series. Transparent. Well-rounded. Superb rendering and imaging at all volume levels. A powerful-yet-compact subwoofer. states High-Def Digest in a May 2016 review of the R400b.
Measuring a compact 14 inches deep and wide, the R400b delivers a surprisingly massive low-end with an incredibly quick response. The subwoofer’s twin 9 inches bass drivers perform with little excursion, meaning your bass frequencies hit hard and can cease instantly.
- The R400b uses two ultra-low distortion 9 inches bass drivers, each braced with force-cancelling technology within the cabinet to allow both drive units to operate more effectively, giving greater definition to low frequencies.
- The shape and bracing of the cabinet are computer optimized to minimize secondary radiation from the cabinet walls and distortion from standing waves.
- Measuring a compact 14 inches deep and wide, the R400b delivers a surprisingly massive low-end with an incredibly quick response.
- Frequency Range-26Hz – 140Hz (-6dB). Power requirements-100V – 120V / 220V – 240V, ~ 50 / 60Hz