STAX SR-002 Portable In-Ear Earspeaker


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  • Why Electrostatic Heaphones?

    Electrostatic headphones operate on a different principle than conventional "dynamic" or "moving coil" designs. In a conventional headphones there is a coil of wire inside a magnet, generally glued to a stiff cone or dome that's held in place with a springy suspension. This makes in more difficult to re-create detail in playback due to mass. Or to put simply there are more heavy moving parts.

    Pioneered by Stax in 1959 – an electrostatic design works by placing a static (non-moving) electric charge on a film that floats between two perforated metal plates. When audio voltages are applied across the plates, static cling and repulsion causes the entire film to move by itself. This film is so thin, it effectively weighs less than the air around it, and has no resonances or energy storage which leads to distortion inherent in moving coil speakers.

    These factors are one of many reasons why Stax electrostatic Headphones sound so much better than conventional designs. During play back the listener is experiencing minimal interference from the headphone speaker itself, in turn bringing you that much closer to the original artist’s performance.

  • SR-002 Portable In-the-Ear Speaker

  • Type: Push-Pull electrostatic circular sound element, In-The-Earcanal type enclosure
    Frequency Response: 20-20kHz (4dB)
    Capacitance: 44pF (including cable)
    Sensitivity: 110dB / 100V r.m.s. 1 kHz
    Bias Voltage: 550-580V DC
    Ear Pads: Silicone earbuds (Small, Medium, or Large) Medium included
    Cable: parallel 6-core, 1.5m full length
    Weight: 0.4oz without cable / 1oz with cable