Wharfedale Crystal 4.1 - Matching Pair - Speakers Well sounding. SPECS: Enclosure type: Bass Reflex Transducer complement: 2-way Bass driver: 100mm Woven Kevlar Cone Treble driver: 25mm Soft Dome Sensitivity (2.83V @ 1m): 86dB Recommended amplifier power: 20-60W Peak SPL: 95dB Nominal impedance: 8Ω Compatible Minimum impedance: 4.3Ω Frequency response (+/-3dB): 75Hz - 20kHz Bass extension (-6dB): 70Hz Crossover frequency: 3.4kHz Cabinet Volume (in litres): 2.3L Dimensions: Height: 194mm, Width: 141mm Depth (with grille & terminal): (147+10)mm Carton size: 382 x 225 x 280mm Net weight: 2kg each To deliver this product properly, it is carefully packed in very strong boxes, thereby wrapped in bubble wrap with lots of padding. We mainly use plastic to fill up the package, if wished differently please contact us. The package is shipped insured to protect both the buyer and seller. For further packing wishes please message after purchase. Photos serve as additional description of product condition / condition of display & LEDs. Please review them carefully before purchase. Orders to islands, or special destinations have a higher shipping cost, for example; Canary Islands