STAX - SR-009S
Open-Back Electrostatic Earspeaker
₹ 349,990
Inclusive of all taxes
DELIVERY
Dispatches in 48 hours
RETURNS & WARRANTY
7 Day Replacement Guarantee
1 Year Warranty
Experience the Magic of Push-Pull Open-Back Circular Electrostatic Headphones - The SR-009S
STAX introduces the SR-009S, a high-performance push-pull open-back circular electrostatic headphone engineered for exceptional speed, accuracy, and detail retrieval. It features an ultra-thin, low-mass diaphragm that delivers outstanding transient response across the entire frequency range. Equipped with an upgraded Multilayer Fixed Electrode (MLER) design with smoothened edges and gold plating, the SR-009S ensures minimal air resistance, superior sound permeability, and precise audio reproduction. This cutting-edge construction results in a headphone that excels in speed, resolution, and natural tonal balance.
Electrostatic Sound System With Enhanced Sound Permeability and Speed
STAX SR-009S features an ultra-thin diaphragm made from a lightweight plastic film with nearly zero mass, delivering fast, accurate sound across the entire frequency range. It uses an upgraded Multilayer Fixed Electrode (MLER) design with smoothened edges to reduce air resistance and improve sound transparency. The gold-plated electrodes further control resonance, offering crystal-clear, detailed sound with natural texture.
Advanced Electrode and Guard Mesh Design for Superior Sound Quality
STAX SR-009S is engineered for an ultra-high resolution audio experience. The guard mesh on the outer part of the headphone is curved to increase sound intensity, improve resolution, and reduce the influence of sound reflection. These design elements work together to create a wide, natural soundstage with exceptional layering and precise imaging, making the SR-009S ideal for critical listening and professional use.
Arc-Shaped Adjustable Headband for a Perfect Fit
STAX SR-009S features an arc-shaped headband designed for comfort and flexibility. It comes with a 10-step adjustable slider, allowing the headphones to fit comfortably on just about any head size. This thoughtful design ensures a secure and personalised fit, enhancing comfort during long listening sessions.
Precision-Built Aluminium Structure for Durability and Lightweight Comfort
Every component of the SR-009S is precision-machined from aluminium. This not only makes the headphones highly durable but also keeps them lightweight for extended listening comfort. The housing is carefully designed to be as thin as possible to reduce resonance and facilitate smooth airflow around the sound elements, enhancing the natural sound profile. It features luxuriously soft earpads made from synthetic leather and premium lambskin. These materials are carefully selected to prevent perspiration and ensure comfort during long listening sessions.
Comes With Premium Cables Crafted for High-Fidelity Transmission
STAX SR-009S is equipped with high-purity cables similar to those used in advanced large-scale integration circuits and premium audio setups. These cables use 99.9999% (6N) pure copper that is silver-coated and finished for superior signal transmission and structural integrity. The premium cable construction supports the headphone’s goal of achieving pristine, accurate audio reproduction with minimal interference.
Driver
Electrostatic Driver
Impedance
145k Ohms (Including Cable, At 10kHz)
Microphone
Without Mic
Frequency Response
5 - 42,000 Hz
Sound Pressure Sensitivity
101dB / 100V R.m.s. 1 KHz
Bias Voltage
580V DC
Maximum Sound Pressure Level
118dB / 400Hz
Electrostatic Capacitance
110pF (Including Cable)
Left & Right Channel Identification
"L" And "R" Indicated On The Arc Assembly (Inside Head Spring) Left Channel Cable Is Marked With A Solid Line. Right Channel Is Marked With A Dotted Line.
Cable
Silver-Coated 6N (99.9999%) OFC Parallel 6-Strand, Low-Capacity Special Wide Cable, 2.5m Full Length
Ear Pads
Genuine Lamb Leather (Direct Skin Contact), High-Quality Synthetic Leather (Surrounding Portion)
Weight
1lb Without Cable / 1.3lb With Cable
Box Contents
1. STAX SR-009S
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What is the warranty period on the STAX SR-009S and how do I claim warranty?
The warranty period on STAX SR-009S is for 1 year. To read more information click here.
What type of headphone is the STAX SR-009S?
The STAX SR-009S is an electrostatic, push-pull, open-back headphone designed for audiophiles seeking high speed, ultra-low distortion, and exceptional resolution.
What is the benefit of electrostatic drivers in the STAX SR-009S?
Electrostatic drivers, like the ones in the STAX SR-009S, use an ultra-thin diaphragm suspended between two stators. This results in a nearly massless diaphragm that delivers fast transients, incredible detail, and wide frequency response with minimal distortion.
What improvements does the Multilayer Fixed Electrode (MLER) offer?
The MLER design, with smooth edges and gold plating, reduces air resistance and resonance, improving sound transparency and delivering more precise and natural audio reproduction.
Does the STAX SR-009S require a special amplifier?
Yes, electrostatic headphones like the STAX SR-009S require a dedicated electrostatic headphone amplifier (energizer) and cannot be used with regular headphone outputs or amplifiers.
What materials are used for the cable?
The STAX SR-009S uses 99.9999% (6N) pure silver-coated copper cables, which offer high conductivity, low resistance, and excellent signal integrity—ideal for critical listening.
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