$4,999 $6,800
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Australian sourced stock, with full local warranty.


  • Push-Pull Circular Electrostatic Headphone
  • Open-air type enclosure
  • Left & Right Channel Identification
  • Made in Japan


Push-Pull electrostatic circular sound element, Open-Air type enclosure

Frequency Response

5 – 42,000Hz

Electrostatic capacitance 110pF (including cable)


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 Silver-coated 6N (99.9999%) OFC parallel 6-strand, low-capacity special wide cable, 2.5m full length


596g (including cable), 454g (without cable)

  • STAX SR-009S headphone
  • Storage box
  • Owners manual

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