The Stax SR-009S is an electrostatic headphone model that represents an evolution of the previous SR-009 design. It features improved sound quality and comfort, making it a favorite among audiophiles. The SR-009S is designed to deliver a broad frequency response, with exceptional clarity and detail, resulting from its lightweight diaphragm and high-permeability materials. The headphone employs a careful construction technique that minimizes distortion and enhances acoustic performance. It provides a wide soundstage and a natural tonal balance across various music genres. The ergonomic design includes plush ear pads and an adjustable headband, ensuring a comfortable fit for long listening sessions. The SR-009S typically requires a dedicated electrostatic amplifier for optimal performance, emphasizing its sophisticated design intended for high-end audio applications. The specifications include a frequency response range of 6 Hz to 42 kHz, an impedance of approximately 145 kOhms, and a sound pressure level of around 101 dB. These features make the SR-009S suitable for audiophiles seeking an immersive listening experience.
