Technical parameters: Speaker Net Weight: 18 kg/pair Speaker driver disc: Pure paper Speaker driver size: 6.5 inch = 16.5CM Power range: 50- 100 W Frequency range: 45HZ - 26KHZ Impedance: 8 ohms Sensitivity: 96 dB Box material: thick ultra-high-density, two-site reinforcement plate. Left, right, top, bottom, behind imported ebony veneer is affixed to paint Box thickness: 18MM Front panel thickness: 36MM, Dimensions: Panel Width: 230MM × High 370MM x Deep 310MM Package included: one pair Features: Box panelgrilled black matte lacquer paint overall impression is very good, high quality display in the living room, study, are very atmospheric, noble Using the Neodymium magnetic speaker can make sure a high sencitivity, this feature is very important for a full rang speaker, which can make the sound more beautiful. Copper wire pillar: Using a special custom-made from a Taiwanfactory, it has a high quality and play in conveying signals good effect, it can enhance the sound quality excellent contacts to ensure stud permanent oxidation. Shock feet of copper: bottom of each speaker installed 5 copper spikes, the feet of copper has played a good role in shock as you place the speaker on top of the Office of the TV cabinet or placed on the computer desk, the shock of copper feet can reduce the resonance with the deskt speakers, so you hear more clean, more solid bass will never be clear-cut sense.