STAX SR-009S Electrostatic Earspeaker Headphone

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The STAX SR-009S is an electrostatic earspeaker that improves upon the Multilayer fixed electrode MLER established with the SR-009. The improvement results from the finishing and etching process that smoothes the edge of the electrode opening and reduces air resistance for further sound permeability. The electrodes are gold plated so that they have high specific gravity to minimize resonance and reduce electric resistance. This reduction in electric resistance results in high speed, clarity, silky details, and powerful texture.

  • Type: Push-Pull electrostatic sound element, open-air type enclosure
  • Left & Right Channel Identification: 'L' and 'R' indicated on the cable entrance point, solid line (left) and dotted line (right) on the cable
  • Ear Pad: Genuine Lamb Leather (direct skin contact), high-quality synthetic leather (surrounding portion)
  • Weight: 563g (including cable), 441g (without cable)
  • Frequency Response: 5Hz - 42kHz
  • Electrostatic Capacitance: 110pF (including cable)
  • Impedance: 145k ohms (10kHz)
  • Sound Pressure Sensitivity: 101dB / 100V r.m.s 1kHz
  • Bias Voltage: 580V DC
  • Cable: Silver plated 6N (99,9999%) OFC parallel 6-litzig Low capacity special wide cable, 2.5m full length

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