{"title":"Electrostatic Headphones \u0026 Amps","description":null,"products":[{"product_id":"es-lab-ex-1a-electrostatic-headphones","title":"ES Lab EX-1a Electrostatic Headphones","description":"\u003cp\u003e\u003cem\u003eNote: Transit on these headphones generally ranges 2-3 weeks from order placement.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cstrong\u003eHigh-Performance Electrostatic Design\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eThe EX-1a represents ES Lab's latest innovative design, after the flagship ES series. It's engineered to deliver performance that approaches that of their flagship model, while also having its own strengths and characters. The EX- 1a caters to both electrostatic headphone enthusiasts and\u2028 newcomers alike. \u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eUltra-thin 68mm driver with copper plate electrodes\u003c\/strong\u003e\u003cbr data-end=\"102\" data-start=\"99\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe EX-la features a 68mm diameter electrostatic driver made of high-grade, ultra-thin Mylar film. The diaphragm is driven by a pair of OFC copper plate electrodes, which is only 0.5mm thick. This provides powerful propulsion for the diaphragm, delivering\u2028exceptional bass reproduction and detail retrieval. Each driver is assembled in a clean room environment with hours of inspection work and the\u2028 strictest contamination control.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eEmbossed dust screen for lower distortion\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFor the first time in the industry, ES Lab adopts an embossing printing process for the ultra-thin film dustscreens. By applying ultra-light compressions to the film, a matrix of embossed patterns is printed onto the dust screen, which is less than a micrometer thick. This minimizes distortion while making the \u2028dust screen acoustically transparent.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eCNC-machined metal chassis with vintage-inspired styling\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe EX-1a employs an all-metal chassis comprised of CNC-machined aluminum alloy, stainless steel frames enclosed in genuine buffalo leather. Maximum comfort is achieved by reducing weight and creating a slim contour. The retro, classic, yet elegant design of the EX-1a closely resembles \u2028vintage audio gear.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePremium lambskin earpads and PC-Triple-C cable options\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eEach earpad is crafted through a complex assembly \u2028process using selected genuine lambskin leather.\u2028\u003c\/p\u003e\n\u003carticle data-turn=\"assistant\" data-scroll-anchor=\"true\" data-testid=\"conversation-turn-10\" data-turn-id=\"request-WEB:e3760da0-33fd-44d7-b7e1-01cc2f2b2437-7\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] thread-sm:[--thread-content-margin:--spacing(6)] thread-lg:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] thread-lg:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-model-slug=\"gpt-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" data-message-id=\"0c1ccc60-cdc9-4f9b-be24-3256a8f6aec9\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words light markdown-new-styling\"\u003e\n\u003ch2 data-end=\"53\" data-start=\"0\"\u003e\u003cstrong\u003ePC-Triple-C Pro Bias cabling with upgrade options\u003c\/strong\u003e\u003c\/h2\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\/article\u003e\n\u003cp\u003eThe Pro Bias connection of the driver is linked via a 6- core PC-Triple-C copper cable with insulation cladding and gold-plated connectors. Additional cable\u2028options are available upon request.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e68mm ultra-thin Mylar electrostatic driver for high-resolution detail\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOFC copper plate electrodes (0.5mm) for strong diaphragm propulsion and extended bass\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIndustry-first embossed dustscreen for lower distortion and higher transparency\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCNC-machined aluminum alloy and stainless steel chassis wrapped in buffalo leather\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight, slim-profile design inspired by vintage audio gear\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGenuine lambskin leather earpads crafted through a multi-stage process\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e6-core PC-Triple-C copper Pro Bias cable with gold-plated connectors\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes Paulownia wood storage case for protection and longevity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for easy disassembly, maintenance, and future upgrades\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1-year manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransducer Type: Electrostatic\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating Principle: Open Back\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 10 - 41000 Hz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSensitivity: 99db \/ 100v r.m.s.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHousing: Aluminum magnesium alloy\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBias Voltage: DC 580V\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTermination: 5-Pin Stax Type Pro Bias\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCable Length: 2.3 m\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 380g (w\/o cable)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature \/ Humidity Range of Use: 0-35 °C \/ 0-90%\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat's included\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEX-1a Electrostatic Headphones\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePaulowina case\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ES Lab","offers":[{"title":"Default Title","offer_id":46977027604716,"sku":"APS-1151-1","price":1050.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-es-lab-headphone-es-lab-ex-1a-electrostatic-headphones-1204377248.avif?v=1770988799"},{"product_id":"es-lab-es-2a-electrostatic-headphones","title":"ES Lab ES-2a 90mm Electrostatic Headphones","description":"\u003cp\u003e\u003cem\u003eNote: Transit on these headphones generally ranges 2-3 weeks from order placement.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cstrong\u003eFlagship-Grade Electrostatic Performance\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eThe ES-2a, a tribute to the legendary Omega headphone, is designed to provide the ultimate listening experience, closely resembling the original. As the successor to the ES-la, the ES-2a improves on all aspects, including driver technology, housing, tuning, and much more. ES Lab is proud to introduce the ES-2a to both existing ES-1a users and those striving for the best electrostatic headphones on the market.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eLarge 90mm electrostatic driver with ultra-thin diaphragm\u003c\/strong\u003e\u003cbr data-start=\"1592\" data-end=\"1595\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe ES-2a features a 90mm diameter electrostatic driver made of high-grade, ultra-thin Mylar film that is much thinner than a human hair. The diaphragm is driven by a pair of OFC electrodes which is only 0.3mm thick. This design provides powerful propulsion to the diaphragm, delivering an exceptional soundstage and detail retrieval. Each driver is assembled in a clean room environment with hours of inspection work and the strictest contamination control.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eEmbossed dust screen for distortion control\u003c\/strong\u003e\u003cbr data-start=\"1641\" data-end=\"1644\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFor the first time in the industry, ES Lab adopts an embossing printing process for the ultra-thin film dustscreens. By applying ultra-light compressions to the film, a matrix of embossed patterns is printed onto the dust screen, which is less than a micrometer thick. This minimizes distortion while making the dust screen acoustically transparent.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eOmega-inspired CNC-machined housing and removable earpads\u003c\/strong\u003e\u003cbr data-start=\"1705\" data-end=\"1708\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe ES-2a housing is crafted from CNC-machined aluminum alloy parts and a nylon arc, recreating the classic look of the Omega. The earpads are attached to the chassis using a screw fixation mechanism. Swapping them out is possible for personal preference or future maintenance.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003ePremium PU leather earpads\u003c\/strong\u003e\u003cbr data-start=\"1738\" data-end=\"1741\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eEach earpad is crafted through a complex assembly process using PU leather.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003ePC-Triple-C Pro Bias cabling with upgrade options\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe Pro Bias connection of the driver is linked via a 6- core PC-Triple-C copper cable with insulation cladding and gold-plated connectors. Additional cable options are available upon request.\u003c\/p\u003e\n\u003ch3 data-start=\"827\" data-end=\"848\"\u003e\u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"850\" data-end=\"1447\"\u003e90mm ultra-thin Mylar electrostatic driver for expansive soundstage\u003cbr data-start=\"919\" data-end=\"922\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"1447\"\u003e0.3mm OFC copper electrodes for strong diaphragm propulsion\u003cbr data-start=\"983\" data-end=\"986\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"1447\"\u003eIndustry-first embossed dustscreen for lower distortion and high transparency\u003cbr data-start=\"1065\" data-end=\"1068\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"1447\"\u003eCNC-machined aluminum alloy housing with classic Omega-inspired design\u003cbr data-start=\"1140\" data-end=\"1143\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"1447\"\u003eScrew-mounted PU leather earpads for easy swapping and maintenance\u003cbr data-start=\"1211\" data-end=\"1214\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"1447\"\u003e6-core PC-Triple-C copper Pro Bias cable with gold-plated connectors\u003cbr data-start=\"1284\" data-end=\"1287\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"1447\"\u003eIncludes Paulownia wood storage case for long-term protection\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"1447\"\u003eDesigned for future serviceability and earpad replacement\u003cbr data-start=\"1412\" data-end=\"1415\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"1447\"\u003e1-year manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransducer Type: Electrostatic\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating Principle: Open Back\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 10 - 41000 Hz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSensitivity: 99db \/ 100v r.m.s.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHousing: Aluminum magnesium alloy\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBias Voltage: DC 580V\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTermination: 5-Pin Stax Type Pro Bias\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCable Length: 2.3 m\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 450g (w\/o cable)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature \/ Humidity Range of Use: 0-35 °C \/ 0-90%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat's included\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eES-2a Electrostatic Headphones\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePaulownia wood storage case\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFeatured reviews\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/LDKii9wDaI8?si=6xmldX8fzxYqRMFW\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"ES Lab","offers":[{"title":"Brown","offer_id":46978776924396,"sku":"APS-1152-1","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":46978776957164,"sku":"APS-1152-2","price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-es-lab-headphone-es-lab-es-2a-90mm-electrostatic-headphones-1204451862.jpg?v=1762906844"},{"product_id":"es-lab-eht-7-electrostatic-headphones-energizer","title":"ES Lab EHT-7 Electrostatic Headphones Energizer","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch1\u003e\u003cstrong\u003eEngineered for Safe, Transparent Electrostatic Playback\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eThe EHT-7 unleashes the full potential of your electrostatic headphones while integrating with your existing speaker amplifier or headphone amplifier. Its exceptional driving capabilities deliver a natural and realistic soundstage, and preserve the ultimate transparency and detail retrieval that electrostatic headphones are famed for.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eInnovative transformer-based energizer design\u003c\/strong\u003e\u003cbr data-end=\"1899\" data-start=\"1896\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eUnlike conventional transformer setups, the EHT-7 incorporates innovative design considerations and technologies, which ensures a reliable and safe handling of the high voltage needed to power electrostatic headphones. This amplifier is crafted for music enthusiasts seeking the ultimate performance from electrostatic headphones.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eJapanese-crafted transformers with exceptional high-frequency response\u003c\/strong\u003e\u003cbr data-start=\"1973\" data-end=\"1976\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe step-up transformers have a fundamental role in shaping the sound of the EHT-7. The audio-grade transformers used in the EHT-7 are crafted in Japan, with each piece assembled by technicians to ensure the highest quality. The cores are made from grain-oriented silicon-iron steel from Nippon Steel Corporation. The effort put into the manufacturing process resulted in the excellent sonic performance of the transformers,\u003cbr\u003ewith an exceptional high-frequency response.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eOptional Lundahl LL1630 transformer upgrade\u003c\/strong\u003e\u003cbr data-start=\"2023\" data-end=\"2026\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe EHT-7 also offers the option of using Lundahl LL1630 transformers from Sweden, famed for their superior sound quality and measurement results by the community. It features a special audio C-core of Lundahl's production. Furthermore, the transformer is highly sectioned, and wound with a special low capacitance winding technique, resulting in an excellent high-frequency performance.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eMulti-stage clean bias power architecture\u003c\/strong\u003e\u003cbr data-start=\"2071\" data-end=\"2074\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe EHT-7 utilizes multiple stages of power processing to deliver a clean bias supply for the electrostatic headphone for optimal performance. This approach stands in contrast to the outdated voltage multiplier design, which is known for its noise generation but commonly used in conventional electrostatic energizers.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eLow-noise regulation and high-voltage conversion\u003c\/strong\u003e\u003cbr data-start=\"2126\" data-end=\"2129\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe EHT-7 draws power from an external switching power supply, feeding it into an ultra-low-noise LT3045 regulator circuit. The regulated voltage is then sent to a low-ripple, high-voltage DC-DC converter module, which generates the 580V bias required for the Pro Bias electrostatic headphone.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eImpedance options and dual input connectivity\u003c\/strong\u003e\u003cbr data-start=\"2178\" data-end=\"2181\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe EHT-7 offers adjustable impedance (8 Q or 16 0) for the primary windings of the transformers, ensuring optimal compatibility with your source amplifier. It also features two input options: speaker termination for connection to your speaker amplifier and XLR balanced input for connection to your headphone amplifier.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eRelay-based signal switching\u003c\/strong\u003e\u003cbr data-start=\"2213\" data-end=\"2216\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe signal switching in the input section is controlled by a set of 5 sealed silver-alloy contact relays, designed for a long lifespan and high current capacity.\u003c\/p\u003e\n\u003ch2 data-start=\"1783\" data-end=\"2265\"\u003e\u003cstrong\u003eComprehensive protection and safety systems\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eSafety is never compromised in our products, and the EHT-7 is no exception. Multiple measures are in place to protect the headphone, source amplifier, and the EHT-7 itself.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eA clipping circuit formed by a network of zener diodes prevents signals exceeding 1150V peak (stator-to-stator) from reaching the headphone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA pair of matched load resistors from Jantzen Audio are serially connected to the transformers, safeguarding against excessive DC current or impedance fluctuations that could damage the transformers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA Vishay 4.7M high-voltage ballast resistor limits current before the bias reaches the headphone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuilt-in short-circuit protection is integrated into both the low-voltage regulator and the high-voltage DC-DC converter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe input circuitry is disabled when the EHT-7 is powered off\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1008\" data-start=\"987\"\u003e\u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eInterfaces with existing speaker or headphone amplifiers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eNatural, transparent soundstage with exceptional detail retrieval\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eJapanese-crafted audio-grade transformers with silicon-iron steel cores\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eOptional Lundahl LL1630 C-core transformers from Sweden\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eMulti-stage power conditioning for clean, low-noise 580V bias\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eLT3045 ultra-low-noise regulation + high-voltage DC-DC conversion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eAdjustable input impedance (8Ω \/ 16Ω) for optimal amplifier matching\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eSpeaker-level and XLR balanced inputs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eSealed silver-alloy contact relays for high-integrity signal switching\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003eExtensive protection: clipping control, load resistors, ballast resistor, short-circuit protection, bias safeguards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1742\" data-start=\"1010\"\u003e\n\u003cp\u003e2-year warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOutput Connection Type: Stax 5-pin Pro Bias\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOutput Voltage Protection Threshold: 1150V peak (stator-to-stator)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower Input: 15VDC \/ 0.2A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower Constion:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: 215mm (Length) X 235mm (Width) X 80 (Height)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 3.1 KG\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWarranty period: 2 years\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eJP Transformer\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eGain (8 Q): 31.1 dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGain (16 Q): 27.8 dB Frequency Response: 10 Hz - 55 kHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e(80\/-3dB, 50V rms,120pf load, Source: Topping LA90D)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecommended Input Power Requirements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSpeaker Amplifier: 5W - 100W\/80\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeadphone Amplifier: 10V\/160 or more\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLundahl LL1630\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eGain: 23.0 dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFrequency Response: 10 Hz - 65 kHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e(-3dB, 50V rms, 120pf load, Source: Topping LA9OD)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecommended Input Power Requirements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSpeaker Amplifier: 10W - 100W\/80\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ES Lab","offers":[{"title":"Japanese","offer_id":46978680684780,"sku":"APS-1153-1","price":850.0,"currency_code":"USD","in_stock":true},{"title":"Lundahl LL1630","offer_id":46978680717548,"sku":"APS-1153-2","price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-es-lab-headphone-amp-es-lab-eht-7-electrostatic-headphones-energizer-1204451861.jpg?v=1762906850"},{"product_id":"apos-certified-es-lab-ex-1a-electrostatic-headphones","title":"ES Lab EX-1a Electrostatic Headphones (Apos Certified)","description":"\u003ch1\u003e\u003cstrong\u003eHigh-Performance Electrostatic Design\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eThe EX-1a represents ES Lab's latest innovative design, after the flagship ES series. It's engineered to deliver performance that approaches that of their flagship model, while also having its own strengths and characters. The EX-1a caters to both electrostatic headphone enthusiasts and newcomers alike. \u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eUltra-thin 68mm driver with copper plate electrodes\u003c\/strong\u003e\u003cbr data-start=\"99\" data-end=\"102\"\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe EX-la features a 68mm diameter electrostatic driver made of high-grade, ultra-thin Mylar film. The diaphragm is driven by a pair of OFC copper plate electrodes, which are only 0.5mm thick. This provides powerful propulsion for the diaphragm, delivering\u2028exceptional bass reproduction and detail retrieval. Each driver is assembled in a clean room environment with hours of inspection work and the\u2028 strictest contamination control.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eEmbossed dust screen for lower distortion\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFor the first time in the industry, ES Lab adopts an embossing printing process for the ultra-thin film dustscreens. By applying ultra-light compressions to the film, a matrix of embossed patterns is printed onto the dust screen, which is less than a micrometer thick. This minimizes distortion while making the \u2028dust screen acoustically transparent.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003eCNC-machined metal chassis with vintage-inspired styling\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe EX-1a employs an all-metal chassis comprised of CNC-machined aluminum alloy, stainless steel frames enclosed in genuine buffalo leather. Maximum comfort is achieved by reducing weight and creating a slim contour. The retro, classic, yet elegant design of the EX-1a closely resembles \u2028vintage audio gear.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePremium lambskin earpads and PC-Triple-C cable options\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eEach earpad is crafted through a complex assembly \u2028process using selected genuine lambskin leather.\u2028\u003c\/p\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:e3760da0-33fd-44d7-b7e1-01cc2f2b2437-7\" data-testid=\"conversation-turn-10\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] thread-sm:[--thread-content-margin:--spacing(6)] thread-lg:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] thread-lg:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"0c1ccc60-cdc9-4f9b-be24-3256a8f6aec9\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words light markdown-new-styling\"\u003e\n\u003ch2 data-start=\"0\" data-end=\"53\"\u003e\u003cstrong\u003ePC-Triple-C Pro Bias cabling with upgrade options\u003c\/strong\u003e\u003c\/h2\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\/article\u003e\n\u003cp\u003eThe Pro Bias connection of the driver is linked via a 6- core PC-Triple-C copper cable with insulation cladding and gold-plated connectors. Additional cable\u2028options are available upon request.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e68mm ultra-thin Mylar electrostatic driver for high-resolution detail\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOFC copper plate electrodes (0.5mm) for strong diaphragm propulsion and extended bass\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIndustry-first embossed dustscreen for lower distortion and higher transparency\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCNC-machined aluminum alloy and stainless steel chassis wrapped in buffalo leather\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight, slim-profile design inspired by vintage audio gear\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGenuine lambskin leather earpads crafted through a multi-stage process\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e6-core PC-Triple-C copper Pro Bias cable with gold-plated connectors\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes Paulownia wood storage case for protection and longevity\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for easy disassembly, maintenance, and future upgrades\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1-year manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTransducer Type: Electrostatic\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating Principle: Open Back\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 10 - 41000 Hz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSensitivity: 99db \/ 100v r.m.s.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHousing: Aluminum magnesium alloy\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBias Voltage: DC 580V\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTermination: 5-Pin Stax Type Pro Bias\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCable Length: 2.3 m\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 380g (w\/o cable)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature \/ Humidity Range of Use: 0-35 °C \/ 0-90%\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat's included\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEX-1a Electrostatic Headphones\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePaulowina case\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ES Lab","offers":[{"title":"Open Box - Like New","offer_id":47304219787500,"sku":"APS-AC-1151-1-LN","price":839.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-es-lab-headphone-es-lab-ex-1a-electrostatic-headphones-apos-certified-open-box-like-new-1220861273.jpg?v=1771014307"},{"product_id":"apos-x-es-lab-hydra-integrated-multi-output-amplifier","title":"Apos x ES Lab Hydra Integrated Amplifier","description":"\u003cp\u003e\u003cem\u003eNote: The product in photo is a prototype and subject to change. Interested in being updated about this launch? Enter your email in the field above. \u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eComing soon...\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"189\" data-end=\"344\"\u003eMost amps make you choose a lane: the high voltage and specialized outputs of e-stats \u003cem\u003eor\u003c\/em\u003e the high wattage of passive speakers. But not the Hydra. This one unit can power your e-stats, your planars, your dynamics, \u003cem\u003eand\u003c\/em\u003e your speakers, all without adapters, workarounds, or stacking multiple amps on your desk. \u003c\/p\u003e\n\u003cp data-start=\"189\" data-end=\"344\"\u003eIt's a pre-amp, a head amp, an e-stat amp, and a power amp rolled into one. \u003c\/p\u003e\n\u003cp data-start=\"189\" data-end=\"344\"\u003eIf you want to stay in the loop as the design evolves and we approach the launch date, throw your email in the form above. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClass A\/B topology\u003c\/li\u003e\n\u003cli\u003e\u202828 WPC @ 8ohms\u003c\/li\u003e\n\u003cli\u003e4 output options: \n\u003cul\u003e\n\u003cli\u003eElectrostatic headphones\u003c\/li\u003e\n\u003cli\u003eNon-electrostatic headphones (dynamic, planar, etc)\u003c\/li\u003e\n\u003cli\u003eDirect (connected to speaker output)\u003c\/li\u003e\n\u003cli\u003eSpeaker outputs (left and right)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u2028XLR and RCA 2x inputs\u2028\u003c\/li\u003e\n\u003cli\u003eBypass mode for operation with external preamplifier.\u2028\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Apos","offers":[{"title":"Default Title","offer_id":47343121268972,"sku":null,"price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/20260714-145539.jpg?v=1784059025"},{"product_id":"sjy-argos-electrostatic-headphones","title":"SJY Argos Electrostatic Headphones","description":"\u003cp\u003e\u003ci\u003eNote: The product in photo is a prototype and subject to change. Interested in being updated about this launch? Enter your email in the field above. \u003c\/i\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cstrong\u003eApos presents...\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eComing soon from Apos and \u003ca href=\"https:\/\/apos.audio\/collections\/brand-spotlight-sjy-audio\" rel=\"noopener\" target=\"_blank\"\u003eSJY Audio\u003c\/a\u003e is an all-new electrostatic headphone from the creator of the \u003ca href=\"https:\/\/apos.audio\/products\/sjy-zeph-open-back-planar-magnetic-headphones\" rel=\"noopener\" target=\"_blank\"\u003eZeph\u003c\/a\u003e and \u003ca href=\"https:\/\/apos.audio\/products\/sjy-horizon-closed-carbon-planar-magnetic-headphones\" rel=\"noopener\" target=\"_blank\"\u003eHorizon Carbon Closed Back\u003c\/a\u003e. The goal is to retain the speed and resolution electrostatics are known for, but shape them into a presentation that feels cohesive and easy to listen to over time: less hyper-analytical,\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003emore natural and balanced. Drawing from the neutrality and composure of classic electrostatics like the HE90, this design aims to bring that style of tuning back in a modern take built for today’s listeners.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eElectrostatic Headphones\u003c\/li\u003e\n\u003cli\u003eCapacitance with 2m Cable: 143pF\u003c\/li\u003e\n\u003cli\u003eDriver area: 6375mm^2.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SJY","offers":[{"title":"Default Title","offer_id":47403345871084,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-sjy-headphone-sjy-electrostatic-headphones-1227872634.jpg?v=1774290129"}],"url":"https:\/\/apos.audio\/collections\/electrostatic-headphones-amps.oembed","provider":"Apos","version":"1.0","type":"link"}