{"product_id":"sr-009d","title":"SR-009D","description":"\u003cp\u003e\u003cspan\u003eThe SR-009, the origin of STAX's current high-end models. Equipped with a large circular sound unit featuring innovative fixed electrodes, this model led the high-end headphone culture for a long time. Production had ceased with the arrival of the new flagship model, but now, in response to numerous requests from fans worldwide, it is making a comeback. With changes to the body color, cable material, and unit case, it is now available at a more accessible price than at its original launch.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/images.squarespace-cdn.com\/content\/v1\/58cae6b4a5790a218479199f\/2b65dc64-9775-4256-9a68-c3be2aa45ade\/Screenshot+2025-12-12+at+11.01.53%E2%80%AFAM.png?format=2500w\" loading=\"lazy\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe SR-009, the origin of STAX's current high-end models. Equipped with a large circular sound unit featuring innovative fixed electrodes, this model led the high-end headphone culture for a long time. Production had ceased with the arrival of the new flagship model, but now, in response to numerous requests from fans worldwide, it is making a comeback. With changes to the body color, cable material, and unit case, it is now available at a more accessible price than at its original launch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMLER (Multi-Layer Electrode)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SR-009 (released in 2011) was the catalyst for the current high-end models SR-X9000 and SR-009S. The key technology for high-end models, MLER (Multi-Layer Electrode), originated with this model. Using thermal diffusion bonding technology, which unifies photo-etched metal plates at the atomic level under vacuum conditions, this new fixed electrode achieves exceptional planarity, low resonance, and high sound wave transmission. The SR-009D remains the most affordable option for experiencing the sound of current STAX high-end models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReplaceable Cable Design:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSR-009D adopts the replaceable cable structure, which is now standard across the current lineup. This enhances the usability of the earspeakers by enabling future compatibility with high-quality cables and easy maintenance in case of unexpected cable breakage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cfigure\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/images.squarespace-cdn.com\/content\/v1\/58cae6b4a5790a218479199f\/d8316111-49d1-4bb9-8e62-b90f0214a717\/DSC00684.jpg\" width=\"2187\" height=\"1727\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigcaption\u003e\n\u003cdiv\u003e\n\u003cp\u003eShown with Woo Audio 3ES Elite Edition (2nd gen) amplifier (available separately)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eType: push-pull electrostatic sound element, open-air type enclosure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSound element shape: large round shape\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFrequency response: 5 - 42,000Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrostatic capacitance: 110pF\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eImpedance: 145k\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSound pressure sensitivity: 101dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBias voltage: 580V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAttached cable conductor: OFC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCable: parallel 6-strand, low-capacity wide cable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCable length:2.5m\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEar pad: genuine sheep leather (skin touching portion), artificial leather (surrounding portion)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 452g (ear speaker)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpecifications and appearance are subject to change for improvement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cfigure\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/images.squarespace-cdn.com\/content\/v1\/58cae6b4a5790a218479199f\/911b9aea-85fd-4355-a8be-6f255ce28053\/Screenshot+2025-11-18+at+10.27.44%E2%80%AFAM.png\" width=\"1772\" height=\"1976\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"STAX","offers":[{"title":"Default Title","offer_id":51122449875109,"sku":null,"price":3245.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0854\/4682\/0005\/files\/009D3.webp?v=1794183997","url":"https:\/\/shopnexoria.shop\/products\/sr-009d","provider":"Westcliff Market","version":"1.0","type":"link"}