Vintage pair of Acoustic Research AR-4x acoustic suspension loudspeakers in oiled walnut finish. Both speakers have the AR badge on the front grill cloth and original back labels. Serial numbers visible: 401990 and 402961. These are classic vintage AR bookshelf speakers with rear tweeter level controls and screw terminals. Great for a vintage audio setup, restoration project, or collector. Includes the two speakers shown in the photos only. Please review all photos closely for exact cosmetic condition, label wear, grill cloth condition, and cabinet wear. Pair of Acoustic Research AR-4x speakers in oiled walnut cabinets. Cabinets show age, scratches, scuffs, finish wear, edge wear, and general cosmetic wear. Grill cloth has staining/discoloration, dust, and some wear. Original rear labels/cards are still attached but have age wear, tears, stains, tape, and paper damage.