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The Best TV Shop Near Doylestown, PA

Piano Black High Gloss REFERENCE 8b Subwoofer

Kef SP3868BC

Quick Specs

  • Type: Speakers
Twin 9 inches driver 'force-cancelling' subwoofer

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.

Weight 34kg (75lbs.)
Dimension H x W x D : 398 x 365 x 429 mm (15.7 x 14.4 x 16.8 in.)
Unit Measurement Pair
Finishes Deep Piano Black
Inputs RCA phono sockets Analog XLR socket Speaker level inputs
Frequency Range Free Field: 18Hz (-6dB)
Frequency Response 24Hz at 90dB output in free-space mode (±3dB)
Net Internal Volume 23L
Maximum Output 110dB (peak sound pressure level at 1m 50Hz)
Amplifier Type 2 x 500 W Class D with switched mode power supply and DSP based control section
Drive Units LF 2 x 225 mm (9in.)
Power Requirements 100V - 120V / 220V - 240V ~50/60Hz
Power Consumption 1000W
Link Out RCA phono socket
Variable Low Pass Filter Variable frequency: 40Hz to 160Hz
Variable slope: 12dB/oct, 18dB/oct, 24dB/oct
LFE mode: 350Hz, 18dB/oct

Quick Specs

  • Appearance

  • Type: Speakers



THE REFERENCE Information Sheet



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Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.