{"id":472452,"date":"2026-07-28T12:57:35","date_gmt":"2026-07-28T10:57:35","guid":{"rendered":"https:\/\/freakuence.nl\/product\/stax-sr-009\/"},"modified":"2026-07-28T12:57:35","modified_gmt":"2026-07-28T10:57:35","slug":"stax-sr-009","status":"publish","type":"product","link":"https:\/\/freakuence.nl\/en\/product\/stax-sr-009\/","title":{"rendered":"Stax SR-009"},"content":{"rendered":"
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Description Freakuence!<\/strong><\/span><\/div>\n
The Stax SR-009 sounds as if you\u2019re sitting right in the middle of a concert hall. The high frequencies are exceptionally airy, crystal-clear, and seem to float apart from their foundation, while the mids sit strikingly loosely in the mix. And these headphones really deliver on the bass! <\/span><\/div>\n
Details<\/strong><\/span><\/div>\n
We’ve equipped it with brand-new, original ear pads and a headband! This is worth 538.00. <\/span><\/div>\n
General description<\/strong><\/span><\/div>\n
The Stax SR-009 is a high-end electrostatic headphone renowned among audiophiles for its unmatched sound quality. The Stax SR-009 delivers a pure sound with a wide stereo image in which every detail is audible. Thanks to its open-back design, the soundstage extends beyond the physically audible space, with dynamics that sound natural and a reproduction of microdetails that offers subtle nuance. These headphones are ideal for anyone looking for headphones with character, but who also wants to experience purity in every aspect of sound quality. <\/span><\/div>\n
The Stax SR-009 offers a sound balance in which the bass is solid without being overpowering, the mids are clear, and the upper mids are sparkling. The dynamics are impressive, with a responsiveness that convincingly renders both soft passages and intense crescendos. With these headphones, you\u2019ll experience detail in the vocals, resonance in the instruments, and an open soundstage that draws you into the recording space. The sound remains natural, with no audible compression or distortion\u2014a top-tier headphone for audiophiles and lovers of refined listening experiences. <\/span><\/div>\n
Would you like to try out the Stax SR-009 for yourself in a listening room, compare it with other headphones, or discuss a possible trade-in? Contact us to schedule a listening session or explore comparison options; you\u2019ll only truly discover the perfect match when you listen. <\/span><\/div>\n
Stax SR-009 Specifications<\/strong><\/span><\/div>\n
Type: Push-pull electrostatic open-back circular sound element, open-air enclosure Frequency response: 5\u201342,000 Hz Electrostatic capacitance: 110 pF (including cable) Impedance: 145 k\u03a9 (including cable, measured at 10 kHz) Sensitivity: 101 dB per 100 V r.m.s. at 1 kHz Maximum sound pressure level: 118 dB at 400 Hz Bias voltage: 580 V DC Cable: Parallel 6-strand silver-coated 6N OFC low-capacitance wide cable, length 2.5 m Ear pads: Genuine sheepskin leather for the parts that touch the skin; high-quality synthetic leather for the surrounding attachment areas Weight: Approximately 596 g including cable; approximately 454 g without cable<\/span><\/div>\n
Background information<\/strong><\/span><\/div>\n
The Stax SR-009 is a state-of-the-art electrostatic headphone, designed by the renowned Japanese team at Stax. Its development focuses on unmatched sound quality and precision. The headphones utilize ultra-thin diaphragms and precision-engineered electrodes, known as \u201cMLER\u201d (Multi-Layer Electrode) technology. The materials have been carefully selected for optimal sound reproduction. The housing is made of aluminum for durability and to reduce resonance. Each pair is hand-assembled in Japan, adhering to the highest manufacturing standards. <\/span><\/div>\n
Brand history<\/strong><\/span><\/div>\n
STAX Ltd. was founded in 1938 in Japan as a manufacturer of electrical components. In 1959, STAX introduced the world’s first electrostatic headphones, the SR-1. Since then, the brand has specialized in the production of electrostatic headphones and associated amplifiers, known as “earspeakers” and “driver units.” STAX developed the Lambda series in 1979, which introduced a new design with a larger ear cup and improved wearing comfort. In 2011, STAX became a subsidiary of Edifier Group. STAX’s products are handmade in Japan. The technology of STAX ear speakers is based on electrostatic drive, where ultra-thin diaphragms are driven between two electrodes. STAX offers several models ranging from entry-level to reference products. In addition to headphones and amplifiers, STAX also produces accessories such as cables and headrests. The name “STAX” is derived from the English word “stacks,” referring to stacked sound waves. <\/span><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Description Freakuence! The Stax SR-009 sounds as if you\u2019re sitting right in the middle of a concert hall. The high frequencies are exceptionally airy, crystal-clear, and seem to float apart from their foundation, while the mids sit strikingly loosely in the mix. And these headphones really deliver on the bass! Details We’ve equipped it with […]<\/p>\n","protected":false},"featured_media":472431,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"product_brand":[],"product_cat":[1069],"product_tag":[487],"class_list":["post-472452","product","type-product","status-publish","has-post-thumbnail","product_cat-headphones","product_tag-used-en","pa_merken-stax","first","instock","sold-individually","purchasable","product-type-simple"],"acf":[],"yoast_head":"\nStax SR-009 | Freakuence!<\/title>\n<meta name=\"description\" content=\"Stax SR-009 Top\u2713 New & Used Hi-Fi \u2713 Customer Rating: 4.9 out of 5 \u2713 Trade-In \u2713 Listening Session\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/freakuence.nl\/en\/product\/stax-sr-009\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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