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STAX SR-X1 Electrostatic Earspeaker

Now Available!

Updated May 20, 2024

The STAX SR-X1 is the newest earspeaker from the leader in electrostatic headphones and the easiest way for audiophiles to experience pure and immersive sound.

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Wide Frequency Response

Ranging from DC to 35,000Hz for full-spectrum audio reproduction.

Minimal Distortion

Harmonic distortion of 0.1% or less ensures crystal-clear sound.

Flexible Installation

Parallel Out terminals facilitate easy incorporation into your existing audio system, whether for music enjoyment or enhancing movie experiences at your desktop or bedside.


● Type: Push-pull electrostatic circular speaker, rear-opening enclosure
● Unit Shape: Medium-sized circular
● Fixed electrodes: High-precision etched electrodes
● Playback frequency range: 7-41,000Hz
● Capacitance: 110pF (including attached cable)
● Impedance: 145kΩ (at 10kHz/including 2.5m attached cable)
● Sound pressure sensitivity: 101dB/100Vr.m.s. input/1kHz
● Bias voltage: 580V, DC
● Earpads: Genuine sheepskin leather (skin contact area), artificial leather (attachment area)
● Cable: Parallel 6-core, wide low capacitance cable, 2.5m
● Cable conductor: OFC
● Weight: 234g (main unit only)

About STAX

STAX produce exclusively electrostatic headphones, or “earspeakers” as they call them, in Japan, since 1938. STAX chose the electrostatic technology for its ability to produce transparent sound, and low weight for comfort/ergonomics, both due to the driver design not employing fixed magnets and moving coils, as opposed to other common headphone driver designs. The minimal weight of the driver ensures a very quick response to the signal, creating a more faithful sound reproduction.