{"product_id":"woo-audio-wa7-fireflies-tube-headphone-amplifier-with-dac","title":"Woo Audio WA7 Fireflies Tube Headphone Amplifier with DAC","description":"\u003cdiv style=\"max-width:720px;margin:0 auto;padding:32px 24px 48px 24px;background:#ffffff;\"\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:0 0 0.35em 0;font-weight:600;\"\u003eA Tube DAC\/Amp That's Now a True One-Box System\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThe Woo Audio WA7 Fireflies Generation 3 is a tube headphone amplifier and DAC in one compact glass-topped enclosure. Two 5963\/12AU7 tubes do the amplifying. They run in a self-biasing circuit, seated in PTFE sockets. Woo chose those sockets so you can swap the tubes yourself, or upgrade them later.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThis third generation adds a built-in linear power supply, replacing the external supply earlier WA7 models relied on. That turns the WA7 into a true one-box unit. There is nothing else to find room for on the desk.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eGeneration 3 also adds preamp outputs. The WA7 can now drive powered speakers directly, not just headphones. The case is anodized aluminum, in midnight black or silver, and the tubes show through a glass top.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThat glass top isn't just a design flourish. It keeps the tubes on show. It also shields them from dust, and from knocks on a crowded desk. Woo has used this look across the WA7 line since the first model, and this one carries it forward.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eAn ESS Sabre DAC, Now With Speaker Outputs\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eAn ESS Sabre DAC chip handles digital decoding up to 24-bit\/384kHz PCM and DSD256 at 11.2MHz. Frequency response spans 10Hz to 46kHz within -3dB. Signal-to-noise ratio is rated at 100dB.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThe balanced 4.4mm Pentaconn headphone output delivers over 1.5 watts per channel into 4 ohms. A 6.3mm unbalanced jack sits alongside it for headphones without a balanced cable. Both outputs draw on the same tube circuit.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eNew preamp outputs round out the back panel: a balanced 4.4mm output at -3.4V, and an unbalanced 3.5mm output at -1.7V. Either one can feed a power amplifier or a pair of active speakers.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eDigital comes in on one high-retention USB socket. An RCA input takes other line-level sources. The linear supply runs on 115 to 230 volts. It measures 5.25 by 4.8 by 6 inches with the glass top on, and weighs 8.5 pounds.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eWho Is This Amplifier Best For?\u003c\/h2\u003e\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eListeners who want genuine tube sound without extra boxes.\u003c\/strong\u003e A built-in linear power supply means no external brick cluttering your desk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnyone who wants a headphone amp that can also run speakers.\u003c\/strong\u003e New balanced and unbalanced preamp outputs let the WA7 feed powered speakers or a power amplifier directly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOwners of headphones with a balanced cable.\u003c\/strong\u003e The 4.4mm Pentaconn output delivers over 1.5 watts per channel into 4 ohms, so power-hungry planars stop sounding flat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListeners who value upgradeable tubes.\u003c\/strong\u003e PTFE sockets keep the 5963\/12AU7 tubes easy to swap as they age or as your taste changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe desk is where you listen\u003c\/strong\u003e — an internal power supply and a glass-topped tube stage make it a fixture, not something you carry. See our \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/headphones\" style=\"color:#8a5a2b;\"\u003eheadphones\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eHow Does It Connect to Your System?\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eConnect a computer to the USB input, or run a cable from another source into the RCA analog input. Plug headphones into the 4.4mm balanced or 6.3mm unbalanced jack, whichever matches your cable.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eTo use the WA7 as a preamp, run its balanced or unbalanced pre-out into a power amplifier or a pair of active speakers. Give the tubes a few minutes to warm up before critical listening.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003ePairs Well With\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eBuilding your system? Here are some great companions for the Woo Audio WA7 Fireflies Generation 3:\u003c\/p\u003e\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/headphones\" style=\"color:#8a5a2b;\"\u003eHeadphones\u003c\/a\u003e with a 4.4mm balanced or 6.3mm unbalanced cable\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/powered-speakers\" style=\"color:#8a5a2b;\"\u003ePowered speakers\u003c\/a\u003e to build a compact desktop system via its preamp outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/usb-cables\" style=\"color:#8a5a2b;\"\u003eUSB cables\u003c\/a\u003e to connect a computer or digital source\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eInterconnects:\u003c\/strong\u003e A clean run onward — see our \u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/interconnect-cables\" style=\"color:#8a5a2b;\"\u003eInterconnect Cables\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eHow is Generation 3 different from earlier WA7 models?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eGeneration 3 adds a built-in linear power supply, so it no longer needs an external supply. It also adds balanced and unbalanced preamp outputs, letting it drive speakers as well as headphones.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eCan I use the WA7 as a preamplifier for speakers?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eYes. Its balanced 4.4mm or unbalanced 3.5mm pre-out can feed a power amplifier or a pair of active speakers directly, alongside its headphone outputs.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eAre the tubes replaceable?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eYes. The 5963\/12AU7 tubes sit in PTFE sockets designed for easy swapping, so you can replace them as they age or roll in different tubes to taste.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eDo I still need an external power supply?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThat's the main change in this generation. A linear supply built into the chassis replaces the external unit earlier WA7 models required, so setup is just a power cord and your source and headphone cables.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhat's the warranty?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eWoo Audio covers the WA7 Fireflies Generation 3 with a three-year limited warranty.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eSee It in Action\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 0.5em 0;line-height:1.55;\"\u003eWatch this product-focused video:\u003c\/p\u003e\n\u003ciframe width=\"100%\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/t2tSvDGlJcc\" title=\"Product video\" style=\"border:0;margin:0 0 0.9em 0;display:block;\" allowfullscreen\u003e\u003c\/iframe\u003e\n\n\u003cp style=\"margin:0 0 0.5em 0;line-height:1.55;\"\u003eWoo Audio examines this model:\u003c\/p\u003e\n\u003ciframe width=\"100%\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/_XItV1O7nLk\" title=\"Woo Audio WA7 Fireflies 3rd Gen Impressions\" style=\"border:0;margin:0 0 0.9em 0;display:block;\" allowfullscreen\u003e\u003c\/iframe\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eWhy Audio Advisor?\u003c\/h2\u003e\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e40+ Years of Expertise\u003c\/strong\u003e — Since 1981, we’ve helped over a million music lovers find the right gear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60-Day Money-Back Guarantee\u003c\/strong\u003e — Take your time. Listen, enjoy, and make sure it’s right for you.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal Experts, Real Help\u003c\/strong\u003e — Our team is here to answer your questions at 800-942-0220, weekdays 9am–6pm EST.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Shipping\u003c\/strong\u003e — On orders over $49, delivered to your door.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Payment Options\u003c\/strong\u003e — Financing available so you can start listening now.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eLearn More\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eWant to learn more about tube versus solid-state headphone amps, matching an amp to your headphones, or getting the most from your desktop setup? Visit our \u003ca href=\"https:\/\/learningcenter.audioadvisor.com\/\" style=\"color:#8a5a2b;\"\u003eLearning Center\u003c\/a\u003e for guides, tips, and expert advice.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Audio Advisor","offers":[{"title":"Black \/ New","offer_id":45983408324781,"sku":"NEW-WAWA73-BLK","price":1399.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ New","offer_id":45982000709805,"sku":"NEW-WAWA73-SIL","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3708\/1773\/files\/WAWA73_BLK_01-Large__89265.1728486970.1280.1280_f739f466-88d8-4ffb-9f80-ff1b8c135e2a.jpg?v=1778127226","url":"https:\/\/www.audioadvisor.com\/products\/woo-audio-wa7-fireflies-tube-headphone-amplifier-with-dac","provider":"Audio Advisor","version":"1.0","type":"link"}