Scanspeak speakers18W/8545-00 Mid Woofer Drivers I have two of these drivers .This Auction is for a PAIR I bought these for a project they were used briefly in a pair of Wilson Benesch Arc cabinets . I then changed them for the WB drivers. Very little use and in excellent condition. Will be boxed up for postage in specialist boxes. Extract from specifications below: The Symmetric Drive (SD-1) concept with copper in the magnet system was invented by Scan-Speak. High-quality magnet system design has thus been a key feature of Scan-Speak design since the companys inception. The Classic woofers are highly praised, and are used in some of the worlds most exceptional high-end Loudspeakers. Some feature Kevlar cones, others have the innovative Carbon fibre paper cones.