Features New hand selected thin film diaphragmTough stainless fixed electrodesRich deep bass responseDelicate high frequency and soothing mid-range achieving a balanced mannerStax SR-L300 Specifications Type: Push-Pull Open Back Oval Electrostatic Earspeaker HeadphoneFrequency Range: 7-41,000HzCapacitance, including cable: 110pFSound Pressure Level: 101dB / 100V r.m.s. 1 kHzMaximum Sound Pressure: 118dB / 400HzBias Voltage: 580V DCCable: OFC parallel 6-strand, low-capacity wide cable, 2.5m full lengthEarpad: High-quality synthetic leatherWeight