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KEF R Series 5.25" Black Gloss Surround Speaker Pair

Model #: R8A-BK
At a Glance
The R8a works as a surround or rear speaker and can bounce sound off the ceiling to create truly cinematic scale with Dolby Atmos. The flexible R8a can be wall mounted or placed on another speaker for Dolby Atmos height.
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Get to know this product.

What Is Dolby Atmos?

What is Dolby Atmos? In real life, sound comes from all around. But conventional surround systems only allocate it horizontally – left, right, ahead and behind. What makes Dolby Atmos so staggeringly realistic is that the movement of every sound in the scene is reproduced in all three dimensions, including vertically. This creates a true 3D acoustic image of precisely located individual sounds that move in relation to you as if you were actually there. The effect is uncanny. Exhilarating. Sometimes scary, sometimes hilarious; always engrossing.

How Does It Work?

How does it work? Dolby Atmos is infinitely more flexible and adaptable than channel-based home theatre. When a Dolby Atmos stream is fed to a Dolby Atmos compatible A/V receiver, the receiver will render the object-based audio to your home theatre’s unique speaker configuration to precisely recreate the sound the filmmakers intended. Dolby Atmos has the ability to adapt to diverse speaker setup. You can enjoy the full effect with just seven KEF speakers.

R8a Wall Mounted Surround Speaker

R8a can serve as a surround or rear speaker using the convenient mounting system built directly into the base of the R8a. Sleek and unobtrusive, the R8a makes for an excellent addition to any home theatre system.

R8a Dolby Atmos-Enabled Speaker

KEF R8a Dolby Atmos-enabled speakers sit above your existing front and rear floor standing or bookshelf home theatre speakers. Knowing how the brain perceives sound, KEF engineers have perfected a way of beaming the sound upwards so it reflects off the ceiling to replicate the vertical dimension in Dolby Atmos recordings.


Misc. Specs

Product Weight (lbs.)9.8
Frequency Response105Hz - 18.5kHz
Color Finish NameBlack Gloss
CollectionR Series
Input Power Range25 - 150
Max Sound Level Db106
Height (cm)17.38
Depth (cm)25.9
Width (cm)17.46
Product Weight (kg)4.45
Impedance8 ohms
Number of Speakers2
Speaker TypeSurround Speakers
Depth (in.)10.2
Height (in.)6.8
Width (in.)6.9
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