{"product_id":"apos-ray-tube-12au7","title":"Ray Tubes 12AU7 SELECT Vacuum Tube","description":"\u003ch1\u003e\u003cstrong\u003eA New Dimension of Sound\u003c\/strong\u003e\u003c\/h1\u003e\n \u003cp\u003eThe SELECT Collection not only maintains the exceptional manufacturing quality of the CORE Collection but makes a significant leap in sound quality. Engineered for audiophiles who want an immersive auditory experience, this tier far surpasses what factory vacuum tubes can offer.\u003c\/p\u003e\n \u003ch2\u003e\u003cb\u003eMake Your Good Amp Great\u003c\/b\u003e\u003c\/h2\u003e\n \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe SELECT Collection significantly upgrades the performance of your vacuum tube amplifier, even starter models. These vacuum tubes are engineered to enhance the hidden capabilities of your amp, transforming its output into something far beyond its original sound profile. With each vacuum tube rigorously selected by our audio engineers, the SELECT Collection ensures a profound enhancement in clarity, texture, and detail. Every note resonates with more realism, every harmony carries more emotionality, and every rhythm pulses with tighter low-end precision.\u003c\/span\u003e\u003c\/p\u003e\n \u003ch2\u003e\u003cb\u003eThe SELECT Vacuum Tube Difference\u003c\/b\u003e\u003c\/h2\u003e\n \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eDespite originating from the same batches as Ray Tubes CORE Collection, SELECT vacuum tubes are distinguished not by automated manufacturing differences but by the expert judgment of a professional. Their engineers assess each vacuum tube individually for its sound profile, dynamics, microphonics, gain, conductance, noise, and overall performance. This human touch ensures that only vacuum tubes that meet a superior level of sonic excellence are chosen. This meticulous, engineer-led selection is what makes the SELECT Collection exceptionally reliable and capable of delivering next-level sound quality.\u003c\/span\u003e\u003c\/p\u003e\n \u003ch2\u003e\u003cb\u003eGold Pins: Excellence in Every Detail\u003c\/b\u003e\u003c\/h2\u003e\n \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eGold pins not only add a touch of elegance but also serve a significant purpose. Gold's superior conductivity enhances signal transmission for crystal-clear sound, while its resistance to oxidation ensures long-term performance and durability. These qualities, combined with the secure contact gold provides within the socket, mean your vacuum tubes aren't just top-notch they're built to last.\u003c\/span\u003e\u003c\/p\u003e\n \u003ch2\u003e\u003cb\u003eSilk-Screen Printed Logos\u003c\/b\u003e\u003c\/h2\u003e\n \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eEven the logos deserve a special mention. Silk-screen-printed onto the tubes, they demonstrate Ray Tubes commitment to superior craftsmanship down to the smallest detail. This time-honored printing technique yields results that are not only aesthetically pleasing but also durable, ensuring the design work remains vibrant and intact over time.\u003c\/span\u003e\u003c\/p\u003e\n \u003ch2\u003e\u003cb\u003eSuperior Sound, Secured\u003c\/b\u003e\u003c\/h2\u003e\n \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eAn exceptional 12-month warranty rarity in the world of vacuum tubes, especially NOS vacuum tubes reflects Ray Tubes confidence in their vacuum tubes performance and durability. This warranty is your safeguard against any manufacturing defects, making sure that your investment is protected.\u003c\/span\u003e\u003c\/p\u003e\n \u003ch3\u003e\u003cb\u003eProduct highlights\u003c\/b\u003e\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eHand-selected and tested\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eGold pins for corrosion resistance and excellent conduction\u003c\/span\u003e\u003c\/li\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eA substantial upgrade from standard NOS tubes\u003c\/span\u003e\u003c\/li\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eLow noise and microphonics\u003c\/span\u003e\u003c\/li\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMatched pair (2 tubes) or single tube (1 tube)\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eOnly 4% of the tubes commissioned for production meet our standards for gain and conductance matching\u003c\/span\u003e\u003c\/li\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e12-month warranty against manufacturing defects\u003c\/span\u003e\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003e\u003cb\u003eSpecs\u003c\/b\u003e\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eTube type: 12AU7\/ECC82\/6189\/CV4003\u003c\/span\u003e\u003c\/li\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eSocket: 9-pin\u003c\/span\u003e\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003e\u003cb\u003eCompatible Amps\u003c\/b\u003e\u003c\/h3\u003e\n \u003cp\u003e\u003ca href=\"https:\/\/raytubes.audio\/pages\/tube-compatibility-list\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eExplore Ray Tubes' Tube Amp Compatibility List\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n \u003ch3\u003e\u003cb\u003eWhat's included\u003c\/b\u003e\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ePair of matched Ray Vacuum Tubes OR Single Ray Vacuum Tube\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n \u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eManual booklet\u003c\/span\u003e\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003e\u003cstrong\u003eHelp Shape Our Vacuum Tube Legacy\u003c\/strong\u003e\u003c\/h3\u003e\n \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eWith the launch of our Ray Vacuum Tubes, we embark on an exciting mission to create a comprehensive lineup of tubes that cater to the discerning audiophile. We view this as a collaborative journey with the audiophile community and value your feedback and support to shape our future tube lineup. \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/apos.audio\/blogs\/news\/apos-ray-feedback-blog\" target=\"_blank\"\u003eLet us know what other tubes you'd like us to create.\u003c\/a\u003e \u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n \u003ch3\u003e\n \u003cstrong\u003eExplore More\u003c\/strong\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/apos.audio\/blogs\/news\/apos-ray-compatible-amps\" target=\"_blank\"\u003e\u003c\/a\u003e\n \u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\u003ca href=\"https:\/\/apos.audio\/blogs\/audiophile-knowledge-base\/apos-ray-compatible-amps\" rel=\"noopener\" target=\"_blank\"\u003eWhat Tube Amps Are Compatible with Ray Tubes?\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"https:\/\/apos.audio\/blogs\/audiophile-knowledge-base\/howto-maintain-vacuum-tubes\" rel=\"noopener\" target=\"_blank\"\u003eHow Do You Maintain Your Vacuum Tubes?\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"https:\/\/apos.audio\/blogs\/audiophile-knowledge-base\/tube-rolling-guide\" rel=\"noopener\" target=\"_blank\"\u003eHow Do I Roll the Tubes of My Tube Amp?\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"https:\/\/apos.audio\/blogs\/audiophile-knowledge-base\/why-upgrade-your-tubes\" rel=\"noopener\" target=\"_blank\"\u003eWhy Upgrade Your Tubes?\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/apos.audio\/blogs\/audiophile-knowledge-base\/what-are-matched-tubes\" target=\"_blank\"\u003eWhat Are Matched Tubes?\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"https:\/\/apos.audio\/blogs\/news\/apos-ray-faq\" target=\"_blank\"\u003eFAQ\u003c\/a\u003e\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003e\u003cstrong\u003eFeatured reviews\u003c\/strong\u003e\u003c\/h3\u003e\n \u003cp\u003e\u003cb\u003e \u003c\/b\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/ZNqgM1aO-pc?si=4WkvYgCHVmR3ghHA\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n \u003cp\u003e\u003cem\u003e\"They add an overall veil of comfy.\" -Zeos Pantera\u003c\/em\u003e\u003c\/p\u003e\n \u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/7NYbKuCVuQQ?si=r-GfaSVb3Y1cmHqD\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n \u003cp\u003e\u003cem\u003e\"Resolving...clear-sounding...you can hear more music and less noise...tight...smooth....warm....I do believe these are worth it if you want to improve the sound of your amplifier.\" -SoundNews\u003c\/em\u003e\u003c\/p\u003e\n \u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/GXywsB0ZHUo?si=p9NiaUgZVoaCuChv\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n \u003cp\u003e\u003cem\u003e\"A brilliant, brilliant new production tube. I don't have anything negative to say. I can't find any cons or negative with the Apos Ray tubes.\" -Passion for Sound\u003c\/em\u003e\u003c\/p\u003e\n \u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/a4v-XwlOWCM?si=NXfvPPvbYFy3vJ_6\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n \u003cp\u003e\u003cem\u003e\"In one word: coherent...compared to stock tubes they're more clear. They have a more well-defined and solid bass response. The real differences lie in the upper mid-range and treble response. The fidelity of the upper mid-range is actually quite significantly better than that of the stock tubes....the sound-staging width is a lot more substantial.\" -Joshua Valour\u003c\/em\u003e\u003c\/p\u003e\n \u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/xoHtxWJCPmA?si=uVaUTDsojt-FSvaX\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n \u003cp\u003e\u003cem\u003e\"These proved to be so good, so resolving, yet never harsh, never annoying...instead they combine really smooth and natural sounds with higher-resolving, really open, really spacious sounds that we expect from great tubes.\" -iiWi Reviews\u003c\/em\u003e\u003c\/p\u003e\n \u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/3CidxsiPeuw?si=q49p-EWYYgMZECsL\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003cem\u003e\"If any really high-end tube device users out there are wondering 'Are those Ray tubes any good?' Yes. Yes they are. They are really good.\" -Wave Theory\u003c\/em\u003e\u003c\/p\u003e","brand":"Ray Tubes","offers":[{"title":"Matched Pair (2 tubes)","offer_id":46878578770095,"sku":"APS-0745-1","price":207.0,"currency_code":"USD","in_stock":true},{"title":"Single (1 tube)","offer_id":46878578802863,"sku":"APS-0745-2","price":92.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 tubes)","offer_id":46878578835631,"sku":"APS-0745-3","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6415\/2239\/files\/apos-audio-ray-tubes-vacuum-tube-ray-tubes-12au7-select-vacuum-tube-1209699663.jpg?v=1778010933","url":"https:\/\/freshized.com\/products\/apos-ray-tube-12au7","provider":"Freshized","version":"1.0","type":"link"}