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STAX SR-009 Open-Back Electrostatic Headphones

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Original price $4,450.00 (57% Off Est. Retail)
Original price From $1,899.00
Original price $4,450.00 (57% Off Est. Retail)
Current price $1,899.00
From $1,899.00
Current price $1,899.00

+$37.00 Shipping to contiguous US.
Tax collected at checkout.

Earn 1,899 TMR Rewards points for this purchase.
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Cost to ship this item within the Contiguous United States is a flat rate of $37.00, including packaging and insurance. Note that all items valued over $750 will require a signature upon delivery.

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Product Highlights

STAX SR-009 delivers a frequency response of 5 Hz to 42,000 Hz, a sensitivity of 101 dB at 100V r.m.s., and an impedance of 145 kOhms, powered by proprietary Multi-Layer ElectRodes, an ultra-thin polymer diaphragm, and high-purity silver-plated copper cabling. Built around a precision-machined aluminum housing, this flagship electrostatic earspeaker eliminates mechanical resonance to produce boundless acoustic transparency. Every component is engineered to maximize speed and control, yielding an unforced, lifelike delivery that captures the finest ambient cues.

Critical acclaim and community reception position this model as a benchmark in high-end personal audio, celebrated for its crystalline clarity, three-dimensional spatial staging, and astonishing micro-detail. Reviewers emphasize its pristine tonal balance, grainless high frequencies, and surprisingly textured bass articulation that remains agile across complex passages. Enthusiasts consistently laud its durable Japanese craftsmanship and long-term mechanical reliability, frequently noting that it presents vocals and acoustic ensembles with breathtaking realism.

Elevating music reproduction beyond ordinary listening, this masterwork allows devoted connoisseurs to strip away every trace of equipment coloration and experience recordings in their most direct, intimate form. It stands as a definitive culmination of electrostatic design, offering an uncompromising auditory journey that satisfies a lifetime of critical listening.
Brand STAX
Type Over-Ear Headphones
MSRP $4,450.00
Serial # SZ9-2882
Cosmetic Rating

8 - Very good condition with minimal visible cosmetic wear including a few nicks on outer aluminum enclosure rings. Despite these minor blemishes, these headphones are in great condition and sound great too.

Functional Notes

Operational condition of this item is excellent, fully tested and no issues found.

Age Unknown
Owners 2
Service History None

Headphones, Manual, Paulownia wood case, Factory Packaging

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STAX SR-009 Open-Back Electrostatic Headphones
STAX SR-009 Open-Back Electrostatic Headphones