This is a center speaker of the Signature800 series developed as a B & W 35th anniversary model. Two 16.5 cm paper / Kevlar / cone type woofers are installed in the low range with the mid-range being equipped with a 16 cm diameter Kevlar fiber cone FST mid-range.This unit uses an extra-large neodymium (NdFeB) magnet with a high magnetic force for the magnetic circuit. The outer diameter of the magnetic circuit is slimmer to reduce back reflection. In addition, an extra-thick plate and short voice coil are used. By making the plate extremely thick relative to the voice coil winding width, distortion at high volume and modulation due to voice coil magnetic field are reduced. A 2.5 cm metal dome type tweeter is installed in the high range. Silver, which has lower electrical resistance than copper, is used for the cap of the pole piece to suppress the inductance of the voice coil to the ultra-high frequency range, expand the ultra-high frequency reproduction limit, and reduce harmonic distortion. The enclosure is round in shape, has a matrix structure inside, and has a high-gloss Gray Tiger Eye wood finish. This piece makes an excellent addition to any audiophiles home setup. Item SpecificationsMethod3-Way, 4-Speaker, Sealed System, Center Type, Anti-magnetic DesignUnitFor low band : 16.5 cm cone x2For Medium Range : 16 cm cone typeFor high-pass : 2.5 cm dome typeFrequency characteristic35 Hz to 50 kHz -6dBFrequency response42 hz to 42 khz -3dBOutput sound pressure level90dB/2.83V/mNominal impedance8 ? (minimum 3.0 ?)Crossover frequency350 Hz, 4 kHzRecommended power amplifier output50W ~ 250WExternal dimensionsWidth 783x Height 318x Depth 316 mmWeight46.3lbs We are Gannons Antiques and Art in Fort Myers, Florida. We are the most active buyers and retailers in Southwest Florida with a 20,000 square foot showroom and national recognition. Visit our website for our contact information and watch for more beautiful treasures from the same collection. We buy and appraise antiques and art. This is an excellent example of what we buy and sell every day. X667