"Really Stirring, All-Around Performer" Offers Indulgent Experiences That Belie Its Size: KEF R300 Bookshelf Loudspeakers Feature Blade Technology, Play with Exceptional Coherency and Clarity
Deemed a knockout by CNET's Steve Guttenberg and said by longtime Absolute Sound veteran Neil Gader to be "a really stirring, all-around performer that enlivens the mix in [its] competitive price segment," KEF's R300 bookshelf loudspeaker offers indulgent experiences that belie both its size and cost. Afforded trickle-down technology from KEF's Blade Series, including the prized Uni-Q driver array, which measures five-inches in R300, it also claims a 6.5-inch low-frequency bass driver that helps account for the resultant fast, clean midrange responsiveness and set-your-watch-to-it accuracy. You'll be enamored at the extent of coherency, tones, and clarity delivered by R300 – 100% Music Direct Satisfaction Guaranteed.
Part of the R Series home-theater package bestowed awards by What Hi-Fi?, Home Theater, and Home Cinema Choice, R300 serves as a versatile, audiophile-vetted speaker equally capable in a dedicated music or movie setup. Such is its crisp, clean, rich sound and ability to convey subtle detail, voices, and instrumentation without any harshness or aggression. The three-way bass-reflex R300's build touts the same elevated quality as its sonics. Computer-designed crossovers permit the level of each driver to be fine-tuned for a smooth, flat response. Constrained-layer-damping panels prevent cabinet vibration from muddying the sound. KEF even utilized computational fluid dynamics to optimize acoustic integrity pertaining to the airflow through the reflex ports. In every regard, R300 is, as CNET declares, a knockout.
"There's an undeniable ease to the sound, the R300 doesn't shout "detail" or "resolution," but the clarity is there. It's just easier on the ear, it's closer to the way live, unamplified music sounds in real life."
– Steve Guttenberg, CNET
"The R300 conveys tonal and timbral colors that are exceptional in this price range... a singer's voice achieved a unity, a oneness, on an almost subconscious level that most compacts in this range can't quite muster...a terrifically coherent speaker with unimpeachable driver integration."
– Neil Gader, The Absolute Sound
"...A worthy winner and an essential audition."
– Hi-Fi News, Outstanding Product review
"The series is beyond excellent, moving aggressively into I-could-live-this territory. I'm struck by how much this system excelled in the human dimension..."
– Home Theater
R Series Uni-Q Driver
Midrange response is fast and clean thanks to R300's braced magnesium/aluminum alloy cone. KEF's Z-flex surround smooths the transition to the front panel while a sturdy die-cast aluminum chassis prevents resonance from being transferred to the cabinet. The same sophisticated vented tweeter that endows KEF Blade with such startlingly pure high-frequency response resides at the center of the midrange cone. Aided by a large neodymium magnet and a computer-optimized dome structure so stiff that it pistonically operates over its entire working range, the upper registers are articulated with staggering precision. Capitalizing on Uni-Q's point-source characteristics, KEF's ‘tangerine' waveguide helps to disperse the higher frequencies evenly across a wider angle to flood the room with an intricate and refreshingly natural soundfield. Operating together as a single integrated voice, the array as a whole delivers a sweet, accurate sound.
Advanced Bass Driver
The new bass driver is equally impressive. The combination of a massive vented magnet assembly and a large, lightweight aluminum voice coil driving a light, stiff hybrid cone assures clean, deep, and uncompressed bass output with superb dynamics and power handling, plus fast and clean midrange response. Inside the cabinets, every component confirms KEF's technological prowess. Computer-designed crossovers allow the level of each driver to be fine-tuned for a smoother, flatter response. Constrained-layer damping panels prevent cabinet vibration from muddying the midrange and bass. Even the airflow through the reflex ports is managed using computational fluid dynamics to optimize acoustic integrity.
A Ballet of Precision and Simplicity
R Series is designed from the ground up. The speaker enclosure's geometry and bracing optimizes vibrational behavior, reducing secondary radiation from cabinet walls for cleaner sound. Damping panels further minimize cabinet resonance and coloration. Nickel-plated bi-wire connectors with terminal-linking control allow all standard connection methods and provide easy, reliable connection. The reflex-port geometry is tuned to minimize turbulence at high levels, reducing port noise and low-frequency compression.