Bowers & Wilkins - DS-1 - Vision 2-Way Loudspeaker System Serial numbers; 11001A - 11002A The set is in beautiful condition and has been tested working, see the extensive photo series for the right impression which is also part of the description. Specifications Type: 2 way, 2 driver loudspeaker system Power Handling: 60W Impedance: 4Ω Bass: 1 x 165 mm composite cone Tweeter: 1 x 25 mm polyester dome Enclosure: bass reflex Dimensions: 359 x 210 x 188 mm Weight: 4.1 kg Will be carefully packaged and shipped with Track & Trace code.