{"product_id":"woo-audio-wa33-fully-balanced-headphone-amp-preamplifier","title":"Woo Audio WA33 Fully-balanced Headphone Amp\/Preamplifier","description":"\u003ch2\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eIn 2009, we introduced two world-class fully balanced headphone amplifiers––the WES electrostatic amp and the WA22 dynamic amp. Both are preferred choices among the most discerning audiophiles. Here at Woo Audio, we constantly push the performance boundaries. The newly developed WA33 is a state-of-the-art, fully balanced headphone amplifier that raises the bar in setting a new reference in music reproduction. \u003cbr\u003e \u003cbr\u003eThe WA33 employs a true fully balanced design in a compact form factor, featuring a quad (four) of 6C45 tubes for the driver that pushes a quad (four) of 2A3 tubes for the power, and all in direct-heated triodes. It delivers high power to drive demanding headphones to their full potential while maintaining a low noise floor for use with highly sensitive models. The WA33 shares the same striking appearance of the critically acclaimed WES, where both amplifier units are independent of the power supply. This approach eliminates any interference to critical audio components. Additionally, our internal coupling architecture (ICA) technology allows the WA33 amplifier to merge with the power supply unit without an external umbilical cord. The ICA shortens the signal path and thus significantly reduces unwanted electrical interference and raises sound performance to a level beyond what anyone has previously experienced in a headphone system.\u003cbr\u003e \u003cbr\u003eThe WA33 reveals the most delicate detail with the highest level of refinement. Complex music passages are handled with ease and authority. The expansive soundstage, holographic imaging, and rich tones that are pristine, natural, and vivid create a sense of realism that gives the user a euphoric listening experience. With the WA33, music comes to life.\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\u003eSame default tubes for all versions: 6C45 driver x 4, 2A3 power x 4, 5U4G rectifier x 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e[JPS wiring] JPS Alumiloy® hook-up and signal wires are used throughout\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFully balanced design, Push Pull, Class-A\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\u003eTKD (Tokyo Ko-on Denpa) 4-channel balanced smooth potentiometer\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\u003eInternal Coupling Architecture (ICA)\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\u003eOutputs: Dual 3-pin XLR (left and right channel), 4-pin XLR x 1 and 1\/4\" (6.3mm), XLR x 1 preamp\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUser selectable output: pre-amp or headphone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUser selectable HI\/LO impedance and HI\/LO level for headphone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeadphones impedance: 8—600 Ohms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFrequency response: 10Hz— 60kHz, -2dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower output: up to 10 watts per channel @32 Ohms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSignal\/Noise: \u0026gt; 95 dB, THD: \u0026lt; 0.05%, 1kHz\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\/pubhtml\" target=\"_blank\"\u003echart\u003c\/a\u003e]\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower consumption: 150w\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVoltage: AC 100 - 120V 60HZ or AC220 - 240V, 50HZ, voltage built to destination country\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: 17.5\"(W), 12\"(D), 7.5\"(H) without tubes, weight: 53 lbs for Standard, 56 lbs for Elite Edition\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Black, Silver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003eEdition: Standard, Standard + JPS Wires, Elite edition, Elite edition + JPS Wires\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-rte-list=\"default\"\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\u003ch2\u003e\u003cstrong\u003eElite Edition\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe WA33 “Elite Edition” is the result of our further pursuit of unprecedented performance. Our experienced engineers have selected the best internal components and materials from intensive research and development. Elite Edition embodies a harmonious balance between sophisticated design and technological excellence to satisfy the most demanding music lovers.\u003c\/p\u003e\n\u003ch3\u003eElite Edition Adds:\u003c\/h3\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003e\n\u003cp\u003eUltra high-bandwidth, low-loss output transformers custom-made with Single Crystal Copper wires and Ni Alloy metal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSingle Crystal copper hook-up and signal wires are used throughout.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e[JPS wiring] JPS Alumiloy® hook-up and signal wires are used throughout.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eALPS RK50 4-channel balanced potentiometer in brass enclosure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMundorf MCap Supreme Silver\/Gold capacitor for interstage coupling, one per channel (4pcs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMundorf MTube capacitors for voltage filter (3pcs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCardas Audio XLR and WBT RCA connectors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWA33 Elite Edition 24k gold-plated plaque\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\u003eWA33 or WA33 Elite Edition x 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDefault tubes are same for all versions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2A3 tube x 4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e274B tube x 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e6C45 tube x 4\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","brand":"Woo Audio","offers":[{"title":"black \/ standard","offer_id":39296777224382,"sku":"WA33 black standard","price":8499.0,"currency_code":"USD","in_stock":true},{"title":"black \/ standard + JPS Wires","offer_id":39296777257150,"sku":"WA33 black standard JPS","price":10499.0,"currency_code":"USD","in_stock":true},{"title":"black \/ elite edition","offer_id":39296777289918,"sku":"WA33 black elite","price":15999.0,"currency_code":"USD","in_stock":true},{"title":"black \/ elite edition + JPS Wires","offer_id":39296777322686,"sku":"WA33 black elite JPS","price":17999.0,"currency_code":"USD","in_stock":true},{"title":"silver \/ standard","offer_id":39296777355454,"sku":"WA33 silver standard","price":8499.0,"currency_code":"USD","in_stock":true},{"title":"silver \/ standard + JPS Wires","offer_id":39296777388222,"sku":"WA33 silver standard JPS","price":10499.0,"currency_code":"USD","in_stock":true},{"title":"silver \/ elite edition","offer_id":39296777420990,"sku":"WA33 silver elite","price":15999.0,"currency_code":"USD","in_stock":true},{"title":"silver \/ elite edition + JPS Wires","offer_id":39296777453758,"sku":"WA33 silver elite JPS","price":17999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/products\/wa33-2x.jpg?v=1762458009","url":"https:\/\/audio46.mom\/products\/woo-audio-wa33-fully-balanced-headphone-amp-preamplifier","provider":"Audio46 Headphone Store","version":"1.0","type":"link"}