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If you want a home entertainment subwoofer that delivers apocalyptic bass extension with zero distortion, consider The KEF Reference Model 209 subwoofer.

The KEF Reference Model 209 subwoofer is powered by a 1000W amp with DSP-based equalisation and volume, phase, polarity and crossover parameters adjustable by remote control, the 450mm (18in.) cone has a double radial magnet, a unique dual suspension system, and the effective cabinet volume is virtually doubled by KEF's Acoustic Compliance Enhancement technology.

The KEF Reference Model 209 subwoofer features KEF's latest Uni-Q® driver array is the most natural-sounding yet. The tweeter at the centre of the midrange cone now has a vented three-magnet motor system and a unique new braced dome, creating a perfectly time-aligned point source whose directivity is optimised by the reprofiled cone. As a result, dispersion is wider than ever. Power response is more uniform. Multi-channel imaging is even more stable - and stunningly realistic. The new Uni-Q® array is so perfectly attuned to reproducing the human voice that vocals acquire previously unheard-of definition. The improved balance between direct sound, early room reflections and the reverberant field delivers an extraordinarily realistic performance without losing any of the Uni-Q benefits of precise imaging, spaciousness and unconstrained vertical response.

The KEF Reference Model 209 subwoofer uses the new Reference Series crossovers are computer-modelled to optimise integration. The boards are decoupled to isolate them from cabinet vibration and internal acoustic pressures, and three-tier construction eliminates crosstalk. High saturation iron core inductors are used for the bass sections, with more linear air-cored inductors elsewhere; bipolar capacitors for low frequencies, with very low loss polypropylene capacitors for the upper ranges. Wire-wound resistors minimise compression and maximise linearity.

The KEF Reference Model 209 subwoofer has been precision engineered to eliminate every unwanted vibration, Reference Series cabinets are works of art in themselves. Massive internal bracing tailors the volume of each enclosure to the exact parameters of its drive unit. Extensive mechanical and acoustic damping, together with independent driver loading and KEF's decoupling techniques, creates inert enclosures that eradicate any vestigial panel resonance, standing waves, stray reflections or box colourations.

Closed box design
The latest Reference Series technology
Elegant compact cabinet
Powered by a 1000W amp with DSP-based equalisation
Inert enclosures that eradicate any vestigial panel resonance, standing waves, stray reflections or box colourations.
Massive internal bracing tailors the volume of each enclosure to the exact parameters


  • Amplifier  1000W built in
  • Dimensions (HxWxD) in mm  530x629x629
  • Enclosure Type  Closed Box
  • Finish  Blk, Ch, AmW, SSyc
  • Frequency Response at 3dB  15Hz - 250KHz
  • HF Driver  None
  • Impedance  Active system
  • LF Driver  450mm
  • Magnetically Shielded  Yes
  • Maximum Output  120dB
  • Sensitivity SPL/m/2.83V  Active system

The word mark KEF® is a registered trademark of KEF®, America (GP ACOUSTICS LTD.). The images of KEF® equipment, components, and/or accessories depicted above may be copyrightable subject matter of KEF®.  Our company is not an authorized dealer of KEF® products, but does maintain a stocking inventory of that company's products. As such, KEF America® reserves the right not to honor its factory warranty on this product. However, our store offers an equivalent warranty on all products sold.

Available Options:
Color: High Gloss Cherry ( + $799.99 )
Satin American Walnut  
Satin Cherry Real Wood Veneer  
High Gloss American Walnut ( + $799.99 )
Piano Black ( + $799.99 )
Satin Black  
Satin Sycamore Real Wood Veneer  
Speaker Warranty:
Extended Warranty Coverage From An Authorized Service Center
3 Year Speaker Warranty ( + $1,499.99 )
Double Box My Product:
Yes, I would like my item double boxed
Double Boxed ( + $19.99 )
For more information, please visit this products webpage.
SHIPPING COST : $0 (Continental U.S. only)

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