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Reference 8b Ultimate Subwoofer

Only the finest dealers are approved to offer this product. Your purchasing experience should be worthy of a loudspeaker such as this, and should come with matching levels of service and support. Therefore upon inquiry or purchase of The Reference through KEF Direct, a KEF concierge will contact you to facilitate product shipment and delivery via a KEF Reference Authorized Dealer local to you.

For power with accuracy, the Reference sub boasts two 500W Class D amps, each driving a 9in. long-throw, ultra-low distortion driver, connected back-to-back in the heavily braced, acoustically inert cabinet. To experience the full impact of dramatic on-screen effects, bass definition and control are as important as extension. Only a truly great subwoofer could do justice to Reference standards of home theater, and it does.

Priced as EACH.

Note: All Reference products are made to order. Expected build time is 8-10 weeks.

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Availability: In stock

$6,999.99

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Bass Drivers

Featuring two ultra-low distortion 9 inch bass drivers the Reference 8b Subwoofer has the power and accuracy to bring your theater to life. Using KEF's ingenious force-cancelling technology, these formidably powerful drive units are connected back-to-back cancelling out the forces they generate, this configuration allows both drive units to operate more effectively, giving noticeably greater definition to low frequency effects.
KEF Reference 8b Bass Driver Technology
KEF Reference 8b CabinetCabinet Design

Finished by hand in an ultra-high-gloss piano black finish and complimented by a composite front baffle the Reference 8b looks as good as it sounds. The shape and bracing of the cabinet are computer optimized to minimize secondary radiation from the cabinet walls and distortion from standing waves. With constrained layer damping to absorb residual vibrations, and it's dual opposed drivers the Reference 8b does not allow anything to compromise the purity of the sound.
Composite Front Baffle

The Reference drivers are set in a smooth, strikingly distinctive front baffle engineered to eliminate response anomalies caused by diffraction. Made from an exceptionally strong laminated aluminium/resin composite and secured via high-loss pads and high tensile bolts, it adds tremendous rigidity to the inert cabinet.
KEF Reference 8b Composite front baffle
KEF Reference 8b Deep Piano Black Finish


• Click here to learn more about the KEF Reference 8b Subwoofer at KEF.com

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Model REFERENCE 8b
Design Force cancelled closed box
LF Drive unit 2 x 225 mm (9in.)
Frequency range at 90dB output in free-space mode (-6dB) 18Hz
Frequency response at 90dB output in free-space mode (±3dB) 24Hz
Amplifier 2 x 500 W Class D with switched mode power supply and DSP based control section
Maximum output
(peak sound pressure level at 1m 50Hz)
110dB
Low pass filter variable Variable frequency: 40Hz to 160Hz
Variable slope: 12dB/oct, 18dB/oct, 24dB/oct
LFE mode: 350Hz, 18dB/oct
Inputs RCA phono sockets
Analog XLR socket
Speaker level inputs
Link out RCA phono socket
Net internal volume 23L
Weight 35kg (77.2lbs.)
Dimensions (H x W x D) 398 x 365 x 429 mm
(15.7 x 14.4 x 16.8 in.)
Power requirements 100V - 120V / 220V - 240V ~50/60Hz
Power consumption 1000W
Finishes Deep Piano Black

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