Stax SR-L500 MkII Electrostatic Earspeaker


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Electrostatic Earspeaker

The STAX SR-L500 MK2 is the new midrange model in STAX’s L-series and offers the same removable cable and upgraded headband of its cousin the SR-L700 MK2. The SR-L500 MK2 uses a well-balanced driver, with the open, airy sound you expect from a STAX headphone.

Japanese manufacturer STAX have been developing headphones since 1938 and electrostatic headphones since 1959. Utilising electrostatic technology in their ‘earspeakers’ that are widely regarded as the best headphones available today, STAX electrostatic earspeakers are widely used throughout the world by discerning audiophiles, professional musicians, and recording companies to enjoy and monitor sound thanks to the superb sonic quality that they offer.

An electrostatic transducer is a speaker design that employs a high polymer film of several microns thick as the diaphragm for far less mass than paper or mylar cones or metal type diaphragms. Since electrostatic elements use no magnets, they are free from magnetic hysteresis distortion that is prominent in dynamic type headphones.


  • Type: push-pull electrostatic, oval sound element, rear open-air type enclosure
  • Frequency response: 7 – 41,000Hz
  • Electrostatic capacitance: 110pF (including attached cable)
  • Impedance: 145kΩ (including attached cable, at 10kHz)
  • Sound pressure sensitivity: 101dB / input 100Vr.m.s. / 1kHz
  • Maximum sound pressure level: 118dB / 400Hz
  • Bias voltage: 580V DC
  • Ear pad: real sheep’s leather (skin-touching portion), high-class artificial leather (surrounding portion)
  • Cable: parallel 6-strand, 2.5m full length, low-capacity special wide cable
  • Cable conductor: 6N (99.9999%) annealed OFC with silver coating
  • Weight: 471g (including attached cable), 351g (without cable)