These Wharfedale Reva 1 sing beautifully and have curved sides for better acoustic properties. The woofer on one of them has minor discoloration, but this does not affect the functionality or sound. The Piano Black finish is still perfect. Sounds comparable to speakers from Kef, Focal, Klipsch, Polk, and so on. Comes with original box, manual, and grills. pair of bookshelf speakers for music or home theater1 woven textile dome tweeter4-1/2 woven glass fiber wooferfrequency response: 52-20,000 Hz (±3dB)recommended amplifier power: 20-60 wattssensitivity: 86 dBimpedance: 8 ohmseach enclosure is built from specially chosen inert wood composites for natural sound without tonal colorationdrivers are mounted in a special alloy-cast chassis to ensure dynamic rigiditybass reflex design with slot-loaded port on the underside of each enclosurebinding posts accept pins, banana connectors, or bare wiretwo sets of input terminals allow bi-amping or bi-wiringremovable magnetic grilleshand-applied piano black lacquer finish6-13/16W x 12-1/2H x 10-5/8Dweight: 12.4 lbs. each