Stax SR-009S Signature Electrostatic Earspeaker with Gold Plate


Stefan Says:

The Mothership of all Electrostatic Headphones: The STAX SR-009S

At Headphone Auditions you can compare it on Stax amplifiers but also the Audiovalve Luminare & Solaris to Hifiman’s Shangri-La Jr and Warwick Sonoma/Bravura and the 25k€  Aperio.

And with the best Planars (AB1266TC & Susvara) and Dynamic Headphone (ZMF Verite) also in the same room, there will be no doubt in your mind that you are walking away with the right set!



Type: push pull electrostatic large circular sound element.
Frequency response: 5-42.000Hz
Electrostatic capacity: 110pF (including cable)
Impedance: 145kΩ (including cable, at 10kHz)
Sound pressure sensitivity: 101 dB / input /1 kHz
Bias voltage: DC580V
Right/left channel indication: Gooden solid line (left) and dotted line (right) on the cable
Earpad: Genuine leather (skin touching portion), high quality Artificial leather (surrounding portion).
Cable: Silver plated 6N (99,9999%) OFC parallel 6-litzig Low capacity special wide cable, 2.5m full length.
Gen. weight: 563g (including cable), 441g (without cable)