{"product_id":"woo-audio-wes-2nd-gen-electrostatic-headphone-amplifier","title":"Woo Audio WES (2nd gen) Electrostatic Headphone Amplifier","description":"\u003ch2\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eWES (2nd gen) is the ultimate electrostatic headphone amplifier for use with STAX headphones. The new 2nd gen uses a matching quad of output loading chokes utilizing Single Crystal Copper wires (the purest form of copper) with our proprietary winding scheme. The results are a significant improvement in clarity, sound space, dynamic range, and control. WES is a two-chassis system comprising a power supply and a fully balanced amplifier and innovative dual power switch that treats the tubes more gently when starting the unit from cold. Turning on just one of the power switches provides low voltage to the heaters while the WES remains in standby mode. Turning on both power switches allows the unit to operate at full power. WES will reward the listener with reference quality sound without fatigue.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eHighlights\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003e\n\u003cp\u003eUpdated to 2nd generation in April 2017\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTubes: EL34 power x 4, 6SL7 driver x 4, 5AR4 rectifier x 2, 12AU7 phase inverter x 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePolytetrafluoroethylene (PTFE) tube sockets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eALPS RK27 4-channel balanced smooth potentiometer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwo 12AU7 phase splitter (unbalanced input to balanced input conversion)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFully-balanced design, Class-A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTransformer-coupled, Point-to-Point wiring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePseudo-dual power supply\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSTAX Pro Bias 5-pin EarSpeakers output x 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003emaximum output 1300Vrms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with all STAX, HiFiMan Shangri-la Jr., Dan Clark Audio VOCE electrostatic headphones\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eXLR input x 2, RCA input x 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAuricap capacitors for interstage and output coupling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMills and Kiwame resistors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAnodized aluminum chassis, available in black or silver\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSelf-biasing with compatible tubes [\u003ca href=\"https:\/\/docs.google.com\/spreadsheets\/d\/1DdsZyTx3CJv9_cG9kVdCGZap-AldiTsvuY4Ms1K_p3k\/pub?hl=en\u0026amp;output=html\" target=\"_blank\"\u003echart\u003c\/a\u003e]\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGlobal voltage (100v–220v) without converter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: Amplifier: 7½\"(H), 16½\"(W), 12\"(D) 20 lbs., Power supply unit: 4½\"(H), 16½\"(W), 12\"(D) 20 lbs., DC cord length: 18” (end to end)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned and assembled in New York, USA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThree-year limited warranty [\u003ca href=\"https:\/\/wooaudio.com\/faq\" target=\"_blank\"\u003elearn more\u003c\/a\u003e]\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Audiophile-grade premium internal parts upgrade adds the following. * \u003cstrong\u003eAvailable exclusively at the time of build.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003e\n\u003cp\u003eV-Cap Teflon Film Tin Foil reference grade audio capacitors - V-Cap TFTF 0.22uF\/300V (12 pcs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eV-Cap Oil Impregnated Metallized Polypropylene reference grade audio capacitors - V-Cap OIMP 2uF\/600V (4 pcs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eIn the box\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003e\n\u003cp\u003eQuick start guide\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWES (2nd gen) electrostatic headphone amplifier x 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWES (2nd gen) power supply unit x 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEL34 vacuum tubes x 4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e6SL7 vacuum tubes x 4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e5AR4 vacuum tubes x 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e12AU7 vacuum tubes x 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUmbilical DC cord x 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*AC power cord and audio cables are not included\u003c\/p\u003e\n\u003ch2\u003eSPECIFICATIONS\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eColor: \u003c\/strong\u003eBlack, Silver\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuild: \u003c\/strong\u003eStandard build, With premium parts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Output:\u003c\/strong\u003e 1300V P-P\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStax Pro Bias:\u003c\/strong\u003e 580V\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSennheiser HE90 BIA:\u003c\/strong\u003e 500V\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignal\/Noise:\u003c\/strong\u003e \u0026gt;100 dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHD:\u003c\/strong\u003e \u0026lt;= 0.3%\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAC Voltage:\u003c\/strong\u003e AC 110\/220 - 240V, 50\/60 Hz, Selectable\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 118 W\u003c\/p\u003e","brand":"Woo Audio","offers":[{"title":"black \/ standard build","offer_id":39303822246078,"sku":"WES black standard","price":4999.0,"currency_code":"USD","in_stock":true},{"title":"black \/ with premium parts","offer_id":39303822278846,"sku":"WES black premium","price":6999.0,"currency_code":"USD","in_stock":true},{"title":"silver \/ standard build","offer_id":39303822311614,"sku":"WES silver standard","price":4999.0,"currency_code":"USD","in_stock":true},{"title":"silver \/ with premium parts","offer_id":39303822344382,"sku":"WES silver premium","price":6999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/products\/DSC00257.jpg?v=1759442332","url":"https:\/\/audio46.mom\/products\/woo-audio-wes-2nd-gen-electrostatic-headphone-amplifier","provider":"Audio46 Headphone Store","version":"1.0","type":"link"}