Stax SR-009D Open Back Headphones

Specification

●Type:push-pull electrostatic circular sound element, open-air type enclosure
●Frequency response:5 – 42,000Hz
●Electrostatic capacitance:110pF (including cable)
●Impedance:145kΩ (including cable, at 10kHz)
●Sound pressure sensitivity:101dB / input 100Vr.m.s. / 1kHz
●Maximum sound pressure level:118dB / 400Hz
●Bias voltage:580V DC
●Right/left channel indication:’L’ and ‘R’ indicated on the arc assembly (inside head spring), solid line (left) and dotted line (right) on the cable
●Earpad:real leather (skin touching portion), high-quality artificial leather (surrounding portion)
●Cable:OFC parallel 6-strand, low-capacity special wide cable, 2.5m full length
●Weight:594g (including cable), 452g (without cable)