THE R SERIES
R Series offers a choice of three floorstanding speakers, a stand mount for more compact spaces and accompanying matching theatre models. Each one offers the finest sound KEF has ever delivered in its category whatever the dimensions of the room or system configuration.
R STARTS WITH REFERENCE
At KEF the Reference Series is the home of cutting-edge technological innovation. This is the result of diligent, creative research and development by the very best engineers in the business. The new R Series benefits from many of the technologies, materials and developments created for the Reference Series.
FEEL THE MUSIC
When you want to forget the world and simply lose yourself in sound, R Series will take you there. At KEF, the quest to develop perfect loudspeakers has lasted more than 50 years. Like you, we don’t just want to hear music; we want to experience it, get inside it and feel part of it.
SOUND IS THE REAL STORY
In the movie world, the best sound engineers are capable of weaving ever more wonderful sonic webs and the new R Series is your ticket for getting the best out of movies, delivering the natural, consistent sound essential for a phenomenal surround sound experience.
Beautiful by Design
Form follows function in KEF loudspeakers, so while the R Series is driven by acoustics all fixings are hidden, so all you see is a beautiful, clean exterior. The R Series comes in two sleek gloss finishes or a classic wood veneer and KEF’s tone-on-tone style means that the details are colour-matched to the finish.
The R Series was created to sound its best with or without grilles. The microfibre grille design is a first for KEF and not only looks beautiful but has a negligible effect on performance. They continue the tone-on-tone approach to match the various cabinet finishes and the edges are burnished for a suede-like effect.
TECHNOLOGY – THE SCIENCE OF SOUND
The evolution of KEF’s Uni-Q driver reaches its 12th generation in the R Series. Using simulation and analysis tools KEF’s engineers have been able to dramatically reduce colouration by cutting resonance in the tiny gaps between Uni-Q’s elements. The result is purer and more precise sound with stronger imaging.
The Shadow Flare is an innovative way to cut harmful high frequency cabinet diffraction. It’s a carefully profiled transition that extends the waveguide effect of Uni-Q. The treble escapes naturally because the ‘shadow region’ stops it getting to the cabinet edges. The result is vastly improved fine detail.
A solid platform is imperative for great sound. The new R Series benefits from Constrained layer damping. This system utilises internal braces joined by a ‘lossy’ interface and is highly effective at dissipating unwanted vibrations that would otherwise artificially change the sound and music.
Low Frequency Drivers
R Series bass drivers have a two-part structure with a shallow concave aluminium skin atop a paper cone. Combine this stiffness with the cone’s unique geometry and you get near pistonic movement for punch and speed. KEF has also increased linearity in the magnet system which means more impressive and impactful bass.
Flexible Port Technology
When it comes to generating deep, articulate bass, port design is crucial. The R Series ports have innovative flexible walls. Using computational fluid dynamics the flare and profile of each port is calculated to delay the onset of turbulence and the flexible port walls prevent resonances from colouring the midrange.
Twin 9-inch driver ‘force-cancelling’ subwoofer
KF92 is a compact, room-friendly subwoofer engineered to deepen every listening experience. Two massive 9-inch drivers in a force-cancelling configuration are powered by an immense 1000 Watts (RMS) of power. Optimised with KEF’s Music Integrity Engine™, KF92 delivers astonishing levels of deep and controlled bass.
DISCOVER THE DETAIL IN THE DEEP
To reproduce serious bass you need a completely different kind of loudspeaker, one which can cope with huge pressure. KF92 is engineered to blast out huge chunks of lower frequency energy, yet is subtle enough to pick out the delicate details of a double bass. KF92 ensures you don’t just feel the air move – you feel the sound move you.
Two 9-inch drivers are positioned back to back in a force-cancelling design which cancels out the reactive forces which stress conventional subwoofers. This configuration keeps KF92 perfectly balanced so all you’ll hear is deep and clean bass at sound pressure levels of upto 110db.
KF92’s prodigious drivers are optimised with a clever vented design which reduces viscous drag on the movement of the cone, ensuring they can keep up with even the most demanding impulses.
Two 9-inch KEF transducers were conceived specifically for the KF92. They feature a hybrid aluminium/paper cone and an oversized motor system and voice coil. They offer vanishingly low distortion and precision, so every bass moment is uncovered even when they are working at extremes.
Music Integrity Engine™
KEF’s research into digtal sound processing – Music Integrity Engine – is the brains behind KF92. Intelligent Bass Extension optimises the relationship between the amplifier, drivers and cabinet, while placement-dependant EQ allows for seamless integration into any room.
Turn up the power
KF92’s 1000W (RMS) of Class D amplification (500W RMS per driver) creates immense power., delivering incredible levels of control. This improves timing accuracy and dynamic response, producing a more detailed sound closer to that in the studio.
More bass, less space
The compact, sealed box construction improves flexibility of positioning as well as the speed and clarity of performance. The beautiful low profile heatsink ensures that the hard working electronics are kept in an optimum thermal condition.
Upgrade to the Ultimate Home Theatre
Your number 1 choice for big home cinema installations with up to 11 speakers driven by built-in amps, and 13.2 processing. The monolithic amplifier
design guarantees best sound quality
Premium-performance discrete 11-channel amplifier in a monolithic design
Full 8K/60Hz and 4K/120Hz support
Enjoy your favourite 3D audio formats
DTS:X® Pro support
Enhanced Audio Return Channel (eARC) HDMI support
The latest in video compatibility
The latest in gaming experiences
New DSP for more processing power
Works with your favourite voice services
Wireless streaming from the most popular music services
HEOS® Built-in wireless multi-room music streaming technology
Delivers a precise and powerful 205W per channel, to provide trusted, precise and powerful Denon sound.
With the latest HDMI support, enjoy 8K quality video from your 8K source devices. One 8K input and 2 outputs allow for 8K/60Hz and 4K/120Hz pass-through. 8K upscaling is available on all 8 HDMI inputs.
Enjoy immersive, 3D audio by Dolby Atmos®, Dolby Atmos Height Virtualization, DTS:X®, DTS Virtual:X™, DTS:X® Pro, IMAX Enhanced and Auro-3D®.
With the latest in DTS technology, enjoy DTS:X® Pro that can process up to 13 channels via future firmware update.
Through the main HDMI output, connect your TV with eARC HDMI support to allow uncompressed and object-based audio formats like Dolby Atmos and DTS:X directly from your smart TV app to your AV receiver
The latest HDR format support including HDR10, HDR10+ (new in 2020), HLG, Dolby Vision, as well as Dynamic HDR (New in 2020), to provide the greatest picture quality for brightness, clarity and contrast.
With 4K/120Hz pass-through, Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), Quick Media Switching (QMS) and Quick Frame Transport (QFT), enjoy your gaming experience with amazing imaging, as well as reduced lag and latency from features.
With 13.2 ch. max audio processing, connect external power amplifier to the AVC-X6700H to power two additional channels to enjoy a 13.2 ch. home theatre setup.
Use your voice to control the AVC-X6700H and wireless music services hands-free with Amazon Alexa, Google Assistant and Apple Siri.
Enjoy all of your favourite music services like Spotify, Amazon Music HD, TIDAL, Deezer and more. The AVC-X6700H also lets you enjoy your music via AirPlay 2, letting you stream your favourite tracks from Apple Music.
Listen from any room for a connected, whole-home audio experience. The AVC-X6700H also works with the newly introduced Denon Home speakers to let you enjoy a whole-home audio experience.