KEF Reference 8b Subwoofer NOTE: This product is handmade to order in England by a single technician, and has a 4-5 Month lead time for delivery. Detail remastered. An icon redefined for tomorrow. The essential for any audiophile. Hand built by the masters who set the standard for audio quality, The Reference has been the benchmark for loudspeakers and sound reproduction. The Reference is an embodiment of KEF’s philosophy and the relentless pursuit of perfection. Now with Metamaterial Absorption Technology (MAT™). Manufacturer's Details: Twin 9 inches driver 'force-cancelling' 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. High Quality Technology One of the key features of the KEF Reference 8b Subwoofer is its advanced Uni-Core™ technology, which uses a unique dual voice coil design to deliver incredibly precise, distortion-free bass response. This technology also allows the subwoofer to operate with greater efficiency, delivering more output for less power. Designed with elegance The subwoofer's cabinet is constructed from high-quality materials, including a rigid, braced MDF enclosure with internal damping materials to reduce resonance and distortion. The cabinet features a sleek, elegant design that will blend in well with any home theatre or listening room. Let's get technical In terms of connectivity, the KEF Reference 8b Subwoofer features both RCA and XLR inputs, as well as high-level speaker inputs and outputs. This makes it easy to integrate the subwoofer into any home theatre or stereo system.