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. Specifications: Model REFERENCE 8b 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 Maximum output(peak sound pressure level at 1m 50Hz) 110dB Low pass filter variable Variable frequency: 40Hz to 160HzVariable slope: 12dB/oct, 18dB/oct, 24dB/octLFE mode: 350Hz, 18dB/oct Inputs RCA phono socketsAnalog XLR socketSpeaker level inputs Link out RCA phono socket Net internal volume 23L Power requirements 100V - 120V / 220V - 240V ~50/60Hz Power consumption 1000W
