{"product_id":"kt66-genalex-matched-pair-smoked-glass-made-in-gt-britain","title":"KT66 GEC \/ Genalex Smoked Glass – Matched Pair – Amplitrex Tested – Made in GT. BRITAIN","description":"\u003cp\u003e \u003cstrong\u003eKT66 GEC \/ Genalex Smoked Glass – Matched Pair – Amplitrex Tested – Made in GT. BRITAIN\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003e \u003cstrong\u003eDescription:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp class=\"p1\"\u003e This \u003cspan class=\"s1\"\u003e\u003cb\u003ematched pair of KT66 GEC \/ Genalex\u003c\/b\u003e\u003c\/span\u003e , \u003cspan class=\"s1\"\u003e\u003cb\u003eMade in Great Britain\u003c\/b\u003e\u003c\/span\u003e , belongs to the historic British production of the absolute reference for power valves. The famous \u003cspan class=\"s1\"\u003e\u003cb\u003eSmoked Glass\u003c\/b\u003e\u003c\/span\u003e construction identifies one of the most iconic and sought-after versions, synonymous with superior construction quality, reliability and collectible prestige.\u003c\/p\u003e\n\n\u003cp class=\"p1\"\u003e The tubes are selected as \u003cspan class=\"s1\"\u003e\u003cb\u003eMatched Pair\u003c\/b\u003e\u003c\/span\u003e and \u003cspan class=\"s1\"\u003e\u003cb\u003etested on AMPLITREX\u003c\/b\u003e\u003c\/span\u003e , guaranteeing electrical coherence, operational stability and uniformity of sound output: a combination that immediately communicates Genalex excellence and authenticity.\u003c\/p\u003e\n\n\u003ch3 class=\"p3\"\u003e \u003cstrong\u003eSound Characteristics\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n \u003cp class=\"p3\"\u003e\u003cb\u003eBass:\u003c\/b\u003e Deep, rounded, and perfectly controlled. The low end is authoritative yet elegant, with solid support that doesn't weigh down the musical message.\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e \u003cb\u003eMids:\u003c\/b\u003e The true strength of the British KT66. Rich, fluid, and three-dimensional, with extremely natural vocals and a refined harmonic texture that conveys realism and presence.\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e \u003cb\u003eHighs:\u003c\/b\u003e Silky, airy, and well-extended. The highs are refined and never aggressive, with a typical Genalex sweetness that favors long, satisfying listening sessions.\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e \u003cb\u003eDynamics:\u003c\/b\u003e Balanced and authoritative. Transient response is prompt but always controlled, with elegant microdynamics and composed macrodynamics.\u003c\/p\u003e\n\n\u003cp class=\"p3\"\u003e \u003cb\u003eSoundstage:\u003c\/b\u003e Wide, deep, and perfectly layered. The soundstage is stable, three-dimensional, and very realistic, with natural instrument placement.\u003c\/p\u003e\n\n\u003ch3 class=\"p3\"\u003e \u003cstrong\u003e\u003cspan class=\"s2\"\u003e🎧\u003c\/span\u003e Use in Hi-Fi Amplifiers\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp class=\"p1\"\u003e Ideal for:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli class=\"p1\"\u003e single-ended and push-pull amplifiers designed for KT66,\u003c\/li\u003e\n\n \u003cli class=\"p1\"\u003ehigh-end British-inspired electronics,\u003c\/li\u003e\n\n\u003cli class=\"p1\"\u003e hi-fi systems that seek musicality, naturalness and timbral refinement.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp class=\"p1\"\u003e Particularly suitable for jazz, classical, vocal and high-resolution listening.\u003c\/p\u003e\n\n\u003ch3 class=\"p3\"\u003e \u003cstrong\u003e\u003cspan class=\"s2\"\u003e🎸\u003c\/span\u003e Use in Music Applications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp class=\"p1\"\u003e Also legendary in:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli class=\"p1\"\u003e British school guitar amplifiers,\u003c\/li\u003e\n\n\u003cli class=\"p1\"\u003e vintage circuits and boutiques,\u003c\/li\u003e\n\n\u003cli class=\"p1\"\u003e contexts where headroom, balance, and a rich, controlled harmonic response are required.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3 class=\"p3\"\u003e \u003cstrong\u003e\u003cspan class=\"s2\"\u003e🎯\u003c\/span\u003e Note for audiophiles and technicians\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp class=\"p3\"\u003e \u003cspan class=\"s2\"\u003eThese\u003c\/span\u003e \u003cb\u003eKT66 GEC \/ Genalex Smoked Glass – Matched Pair\u003c\/b\u003e \u003cspan class=\"s2\"\u003erepresent:\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli class=\"p1\"\u003e\n\n \u003cspan class=\"s1\"\u003ethe\u003c\/span\u003e \u003cb\u003emaximum expression of the British KT66\u003c\/b\u003e \u003cspan class=\"s1\"\u003e,\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\u003cli class=\"p1\"\u003e original production \u003cspan class=\"s1\"\u003e\u003cb\u003eMade in Great Britain\u003c\/b\u003e\u003c\/span\u003e ,\u003c\/li\u003e\n\n\u003cli class=\"p1\"\u003e careful selection and \u003cspan class=\"s1\"\u003e\u003cb\u003etesting on AMPLITREX\u003c\/b\u003e\u003c\/span\u003e ,\u003c\/li\u003e\n\n\u003cli class=\"p1\"\u003e first-rate sound, historical and collectible value.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n \u003cp class=\"p1\"\u003eA pair intended for \u003cspan class=\"s1\"\u003e\u003cb\u003ereference systems and demanding collectors\u003c\/b\u003e\u003c\/span\u003e , for those who want \u003cspan class=\"s1\"\u003e\u003cb\u003ethe authentic Genalex sound\u003c\/b\u003e\u003c\/span\u003e , with all the elegance, musicality and authority that have made these KT66s a timeless legend.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e \u003cstrong\u003eTest Results:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e Tested on\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAMPLITREX AT-1000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTube tester:\u003cbr\u003e \u003cstrong\u003eTest Conditions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVa = 350; Vg2 = 250; Vg = -18V\u003cbr\u003e Measurements are taken after approximately 10 minutes of preheating the tubes.\u003cbr\u003e \u003cstrong\u003eAverage 100%:\u003c\/strong\u003e \u003cspan\u003eGm = 5.2 ; Ia = 54 mA\u003c\/span\u003e\u003cbr\u003e \u003cstrong\u003eTEST RESULT:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVERY STRONG\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eValve #1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 5.20 ; Ia = 58.2 mA\u003cbr\u003e \u003cstrong\u003eValve #2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 5.30 ; Ia =\u003cmeta charset=\"utf-8\"\u003e 58.2 mA\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eAdditional Tests Performed:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cstrong\u003eMicrophonics:\u003c\/strong\u003e Standard. Tested and approved for use in hi-fi and guitar amplifiers.\u003c\/span\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutput Quality:\u003c\/strong\u003e Excellent – ​​Very strong and stable output, no fluctuations.\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cstrong\u003eShort circuits and GAS:\u003c\/strong\u003e Absent.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e \u003cstrong\u003eConditions:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eCondition:\u003c\/strong\u003e \u003cspan\u003eVintage tubes - tested with emission results consistent with NOS condition; pins in perfect condition. Supplied in our custom box for optimal protection.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eFunctionality:\u003c\/strong\u003e Fully functional.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eCosmetic condition:\u003c\/strong\u003e \u003cspan\u003eGood – Some lettering is eroded. Valve body in good condition. See photos for details.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e \u003cspan\u003eSame manufacturing code, unreadable, MO Valve Co. Ltd. production, identifiable by construction features. 1950s\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n \u003cp\u003e\u003ca rel=\"noopener\" title=\"Why our tubes are different – ​​the VTT protocol that improves sound, reliability and durability\" href=\"https:\/\/vacuumtubestreasures.com\/blogs\/notizie\/perche-le-nostre-valvole-sono-diverse\" target=\"_blank\"\u003e\u003cstrong\u003eFind out why our valves are different →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"MO Valve Co. Ltd.; GB","offers":[{"title":"Default Title","offer_id":47897758663004,"sku":"03397-ONSPEC","price":499.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/2_847c67c1-3615-442a-8f46-8d3e4d77d717.jpg?v=1769711499","url":"https:\/\/vacuumtubestreasures.com\/en-de\/products\/kt66-genalex-matched-pair-smoked-glass-made-in-gt-britain-en","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}