Delivering exceptional bass precision and control with zero distortion, Reference 8b is a truly extraordinary subwoofer.
For power with accuracy the Reference 8b sub has two 500W Class D amplifiers, each driving a 228mm (9 inch) long-throw, ultra-low distortion driver. These are connected back-to-back in a heavily braced, acoustically inert cabinet. The result is low distortion bass with effortless body and weight.
Always innovating
Since the first Reference speaker, KEF engineers have continuously pushed the boundaries to discover what is possible with The Reference. Ground-breaking in its first incarnation, each subsequent iteration of The Reference has added to the world’s knowledge of the science of acoustics.
So pure. So KEF.
The latest version of The Reference benefits from our latest acoustic innovation: Metamaterial Absorption Technology (MAT™). MAT™ is a highly complex maze-like structure that absorbs 99% of the unwanted sound from the rear of the driver, eliminating the resulting distortion and providing purer, more natural sound.
Total attention to detail
Every speaker in The Reference range exudes the sense of sheer quality that comes from being hand-built by KEF’s master craftsmen in Maidstone, Kent, UK. They are designed to be acoustically exceptional, attractive to look at, and each speaker is meticulously built to KEF’s exceptional standards.
Computer-modelled cabinet
The Reference’s cabinets are designed using finite element analysis to determine the ideal shape and bracing geometry to minimise secondary radiation. Constrained Layer Damping is then applied to turn what little vibration is left into heat.
Finished to Perfection
The expertly engineered cabinets are finished in a sumptuous high-gloss or richly detailed, pair-matched wood veneer to complement the strikingly distinctive front baffle. Five finishes are available, a combination of three cabinet finishes and five drive unit colours: Satin Walnut/Silver, High-Gloss Black/Copper, High-Gloss Black/Grey, High-Gloss White/Blue, and High-Gloss White/Champagne.
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Weight
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34kg (75lbs.)
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Dimension
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H x W x D : 398 x 365 x 429 mm (15.7 x 14.4 x 16.8 in.)
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Finishes
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Deep Piano Black
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Inputs
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RCA phono sockets, Analog XLR socket, Speaker level inputs
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Frequency Range
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Free Field: 18Hz (-6dB)
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Frequency Response
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24Hz at 90dB output in free-space mode (±3dB)
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Net Internal Volume
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23L
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Maximum Output
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110dB (peak sound pressure level at 1m 50Hz)
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Amplifier Type
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2 x 500 W Class D with switched mode power supply and DSP based control section
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Drive Units
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LF 2 x 225 mm (9in.)
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Power Requirements
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100V - 120V / 220V - 240V ~50/60Hz
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Power Consumption
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1000W
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Link Out
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RCA phono socket
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Variable Low Pass Filter
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Variable frequency: 40Hz to 160Hz
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| Variable slope: 12dB/oct, 18dB/oct, 24dB/oct | |
| LFE mode: 350Hz, 18dB/oct |
KEF Officially Recertified Products are products displayed at KEF events, demonstration from a KEF Dealer, review samples, or customer returns. KEF certified technicians inspect and test each item to ensure it works 100% as new. Your purchase is covered by a full 5 year parts and labor warranty (2 year on electronics) valid at any authorized KEF repair center.
*Some product may have cosmetic blemishes (small dings, scuffs, or dents) but are sonically un-blemished.
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Warranty Period for repairing
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Drivers
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Electronics
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Accessory
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Hifi Speakers
Wireless HiFi Speakers Subwoofer Architectural Speakers |
5 years
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2 years
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2 years
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