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shipping will be from Ukraine - ( WorldWide free shiping! ) trades on your offers or any offersTechnically 5+Cosmetically 5-Rare for our market electrostatics with fantastic detail (the susvara rumor even takes your breath away)!For lovers of analytics and maximum detail! You will not regret it!I will add from myself:The highest detail with an open bright delivery and top-level microdynamics!The sound is transparent with an emphasis on the highs (but of course it depends on your tract)!The bass is super fast and accurate, but since these are electrostatics, of course it is not as massive as in top-level planars!Very well suited for classical, acoustic music and jazz (you can clearly hear every instrument, all the nuances, textures, the most accurate transmission of instruments, maximum transparency, also a very, very large stage)!I even tried playing games and watching movies with them!They showed themselves very beautifully in movies (the sounds are transmitted fantastically)!In games (especially horror movies) it just got to my bones... (all these rustles, the trembling of the main character, his voice is just a fairy tale) before going to bed))Only headphones are included!

Our Thoughts RADAR AI

At USD1,790, this used Stax SR-009 is a screaming bargain—well below the typical used market range of USD2,499–2,856 based on recent comparable listings, where the median sits at USD2,856. Unknown condition makes it riskier than pristine examples, but if it's functional, you're looking at 30-40% off fair value for these flagship electrostatic cans that hold up remarkably well.

Before biting, verify the diaphragms aren't degraded (common after 5+ years; listen for distortion or uneven imaging) and confirm the full kit: original pads, earpads, stand, and dual-sided cable. Age the serial number against 2009-2011 production to gauge hours logged—anything pre-2015 warrants a burn-in test.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Stax

Stax traces its origins to 1938 in Tokyo, Japan, when Naotake Hayashi founded Showa Kouon Co., Ltd. in Chiyoda-ku. Initially focused on wax disc recording, metal master production, and audio equipment for film soundtracks, the company evolved through the postwar era. In 1950, it launched its first high-frequency condenser microphone, adopted by NHK, and renamed itself STAX Co., Ltd. in 1963, honoring its pioneering Stax-1 mic. A brief suspension in 1995 due to economic pressures gave way to revival, preserving its legacy under family leadership.

The brand specializes in electrostatic headphones, known as "EARSPEAKERS," debuting with the world-first SR-1 in 1960. This innovation spawned enduring lines like the SR series, produced for decades with incremental refinements for superior resolution and staging. Stax complements these with dedicated electrostatic amplifiers and select accessories, eschewing conventional speakers, turntables, DACs, or cables to hone its transducer expertise.

Stax commands a niche high-end position among audiophiles and professionals, revered for unmatched transparency and fidelity that rivals cost-no-object loudspeakers. Its 85-year heritage cements it as a boutique icon in electrostatic technology, far from mass-market fare, appealing to discerning buyers seeking pinnacle sonic transduction.

See all Stax listings on RADAR.

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