Stax SRS-3100 Earspeaker System


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Electrostatic Earspeaker System

The Stax SRS-3100 Earspeaker System is a carefully curated package designed to introduce audiophiles and newcomers alike to the world of electrostatic headphones. This entry-level system offers a balance of exceptional sound quality and user-friendly features, making it an ideal first step into the world of Stax's renowned electrostatic technology.

The SR-L300 earspeaker employs new hand selected thin film diaphragm and tough stainless fixed electrodes. Rich deep bass response, delicate high frequency and soothing mid-range has been achieved in a balanced manner.

The SRM-252S is an exclusive driver unit (amplifier) for driving STAX ear speakers with PRO-bias 5 pins. Its line input can directly connect to the audio output terminal of CD player, portable audio player or DAC. The SRM-252S has a simple design that excels in sound quality employing the carefully selected newest high-voltage transistors and low-noise FETs. The output stage featuring the emitter-follower configuration reinforces the driving performance and also realised the smooth sound quality. Moreover, the class-A amplification throughout the stages with no coupling capacitors reproduces exhaustively the finest nuance of music.

Although the SRM-252S includes a class-A DC amplifier in a compact CD jacket size case, the internal heat is effectively dissipated through the chassis of aluminium extrusion material to improve the reliability over a long period of time. Also, the parallel output terminal was added to distribute the source signal so that a loud speaker may also be simultaneously used when source equipment has only a pair of output terminals.

SR-L300 Specifications

  • Type: Push-Pull electrostatic oval sound element, Open-Air type enclosure
  • Frequency response: 7 – 41,000Hz
  • Electrostatic capacitance: 110pF (including attached code)
  • Impedance: 145kΩ (including attached cable, at 10kHz)
  • Sound pressure sensitivity: 101dB / input 100Vr.m.s. / 1kHz
  • Bias voltage: 580V DC
  • Ear pad: high-quality artificial leather (for SR-L300 only)
  • Cable: parallel 6-strand, 2.5m full length, low-capacity special wide OFC cable
  • Weight : 448g (including attached cable), 322g (without cable)
  • Right/left channel indication: 'L' and 'R' indicated on the arc assembly (inside head spring), solid line (left) and dotted line (right) on cable


    • Type: All-stage semiconductors, Low-noise dual FET input Class A operation, Pure balance DC amplifier configuration Earspeaker driver unit
    • Frequency Response: DC to 35,000Hz with SR-207 (with SR-207)
    • High Harmonic Distortion: Max 0.01% (1kHz at 100V r.m.s. )
    • Gain: 58dB (x800)
    • Input Terminal: 1 RCA with 1 RCA parallel out
    • Rated Input Level: 125mV / 100V Outputs
    • Max. Input Level: 30V (at minimum volume level)
    • Input Impedance: 50KΩ(RCA)
    • Max. Output Voltage: 280V r.m.s. (1kHz)
    • Standard Bias Voltage: PRO 580V x 1
    • Power Voltage Frequency: 117V (50Hz / 60Hz)
    • Power Consumption: 4W DC12V
    • Temperature & Humidity: 0 to 35ºC / 90% max. without condensation
    • Dimensions: 5.2 (W) x 1.5 (H) x 5.2 (D) in
    • Weight: 0.5kg
    • Color: Silver
    Stax SRS-3100 Electrostatic Headphone System

    The joys of electrostatic headphone listening are many. The clarity, and lack of distortion coupled with the speed of the almost massless diaphragms in the 'phones make transients a fairly startling revelation! Be warned, this system is addicting and once you hear it, I can guarantee you that you will want to keep it. more...

    Due to the bespoke nature of our high-end music systems this product is not available to be purchased online. Please contact us for personalized service from one of our team of experts.