HIFIDIY C1-50 Audio System - External High-Frequency Unit 25core Beeswax Copper Wire Diaphragm - High-End Hi-Fi Sound Quality

Feature:The voice was sweet ,soft and clear Neodymium strong magnet Beryllium copper Silk edge membrane，Add characteristics of refined magnetic fluid, high efficiency neodymium magnetic intensity magnetic, ingredients cotton noise elimination, refreshing and listening! add protective net.The secret-made beryllium copper film contains 16.7% beryllium and 83.3% copper, which can make the film very thin and less easily broken than pure beryllium film.The thickness is only 0.015mm.0.03 0.04 with titanium membrane is aluminum film is far from level. With patent with metal ball membrane structure, so has strong ability of analysis and the metal film with silk edge beryllium copper film properties, resolving power is strong, fresh and silky, resistant to listen to, for a long time to tire, there is no high frequency rush rush, extension and better frequency on-line direct 40 k, exquisite and clear, detailed performance ultra clear, no spikes don't rob ear, and the secret plate of metal ball units.Parameters:Model Number： C1-50Head Diameter ： 50mmBody Diameter： 63mmTotal Length： 197mmVoice coil diameter： 25.5mmMax Power： 30WRated power： 15WNominal Impedance： 6ΩDc resistance： 3.0ΩSensitivity: 91.5dBResonant frequency:1600 HzRecommend Crossover:>= 2800HzNET Weight: 180g(135g+45g)Frequency Range F0-40k HzSound film Material:Beryllium copper membraneMaterial: plasticFeature:The voice was sweet ,soft and clear Neodymium strong magnet Beryllium copper Silk edge membrane，Add characteristics of refined magnetic fluid, high efficiency neodymium magnetic intensity magnetic, ingredients cotton noise elimination, refreshing and listening! add protective net.The secret-made beryllium copper film contains 16.7% beryllium and 83.3% copper, which can make the film very thin and less easily broken than pure beryllium film.The thickness is only 0.015mm.0.03 0.04 with titanium membrane is aluminum film is far from level. With patent with metal ball membrane structure, so has strong ability of analysis and the metal film with silk edge beryllium copper film properties, resolving power is strong, fresh and silky, resistant to listen to, for a long time to tire, there is no high frequency rush rush, extension and better frequency on-line direct 40 k, exquisite and clear, detailed performance ultra clear, no spikes don't rob ear, and the secret plate of metal ball units.Parameters:Model Number C1-53Panel diameter 52.2mmOpen Hole diameter >=40mmTotal height 30mmMagnet diameter 30mmMagnet width 5mmVoice coil diameter 25.5mmMax Power 30WRated power 15WNominal Impedance 6ΩDc resistance 3.0ΩSensitivity 91dBResonant frequency:1600 HzRecommend Crossover:>= 2800HzNET Weight: 0.06kg/pieceFrequency Range F0-40k HzSound film Material:Beryllium copper membranePanel Material: Aluminium alloy