STAX Earspeaker SR-L700MK2

Sound Design: Push-pull electrostatic, oval sound element, open-air rear enclosure Frequency range: 7 to 41,000 Hz Capacitance: 110pF (cable included) Impedance: 145k (cable included, at 10kHz) Sensitivity: 101dB / 100Vr.m.s / 1kHz Max SPL: 118dB/400Hz Bias voltage: 580V DC Ear pad material: Real sheep leather (inside), high-quality artificial leather (outside) Cable type: 6 parallel wires, total length 2.5m, low-capacity special wide cable Cable conductor: 6N annealed OFC with silver coating. Weight: 508g (with cable), 371g (without cable)