This pair of Mission 751 Speakers sounds absolutely wonderful, deep bass due it’s rear ported Bas-reflex system and thick MDF housing. No chip wood! These items have been tested and are in full working order. These Mission 751 Speakers do not include original packaging, but have been professionally packaged to ensure safe delivery to your door. Specifications: Type: 2 way, 2 driver loudspeaker system Frequency Response: 50Hz to 20kHz Recommended Amplifier: 25 to 75W Crossover Frequency: 2900Hz Impedance: 6 Sensitivity: 89dB Bass: 1 x 130mm polypropylene Tweeter: 1 x 26mm ferrofluid cooled Enclosure: 8 litre, bass reflex Finish: real wood veneer Dimensions: 320 x 172 x 275mm Weight: 12.7kg Carefully insured shipped