{"product_id":"tad-el84-str-matched-quartet","title":"TAD Tube Amp Doctor EL84-STR, Matched Quartet, Premium Selected","description":"\u003cspan style=\"font-family: Verdana; color: #112244;\"\u003eGet your \u003cspan style=\"font-weight: bold;\"\u003eTAD Tube Amp Doctor EL84-STR, Matched Quartet, Premium Selected \u003c\/span\u003etubes at \u003cspan style=\"font-weight: bold; color: #339966;\"\u003eHumbucker Music\u003c\/span\u003e! As one of the largest dealers of high-end amplifiers in the world, we know and understand tubes (and the amps they go in). TAD tubes are carefully selected and undergo very strict quality control before being offered for sale. If they don't past this rigorous testing, they are not chosen to be TAD tubes. We highly endorse TAD replacement tubes for any high-end or boutique amplifier!\u003c\/span\u003e\u003cbr style=\"font-family: Verdana; color: #112244;\"\u003e \u003cbr style=\"font-family: Verdana; color: #112244;\"\u003e \u003cspan style=\"font-family: Verdana; color: #112244; font-weight: bold;\"\u003eDescription:\u003c\/span\u003e\u003cbr style=\"font-family: Verdana; color: #112244;\"\u003e \u003cspan style=\"font-family: Verdana; color: #112244;\"\u003e\u003cbr\u003e The all new TAD EL84-STR brings together the best of both - the famous EL84-Cz and the EL84M. TAD opted for the thickest glass possible and the heaviest construction available, just like the Russian EL84M, and combined these features with the sonically most promising cathode plate options, in order to meet and exceed the tonal quality of the EL84-Cz. Finally, they added the gold grid wire in order to improve overall reliability. The sound can be described as very harmonic in the middle and treble frequencies, without adding too much power to the bass. The result is the best EL84 in current production. No Compromise!\u003cbr\u003e \u003cbr\u003e Due to its diameter of 22.5mm, the TAD EL84-STR does not fit into older Marshall DSL401 and UK made VOX AC15 TBX amplifiers. The only tube which fits these amps is the EL84-EI. (ordering number: NN471) \u003cbr\u003e \u003cbr\u003e Q: When does a power tube become a Premium Selected power tube?\u003cbr\u003e A: All power tubes labeled Premium Selected have passed the following tests:\u003cbr\u003e - Plate Current (PC) and Amplification (TC)\u003cbr\u003e - Low Noise Test\u003cbr\u003e - Microphonic Test\u003cbr\u003e - Sonic Tests\u003cbr\u003e - Shock Tests\u003cbr\u003e - Listening Tests\u003cbr\u003e - Shorts \u0026amp; Leakage Tests\u003cbr\u003e \u003cbr\u003e Premium RT-Matching of Power Tubes: Our Premium Matching is an exact matching of power tubes with identical Plate Current (PC) and Transconductance (TC).\u003cbr\u003e \u003cbr\u003e TAD Premium Selected tubes are guaranteed for a period of 6 months (according to terms of warranties) for the quality criteria mentioned above.\u003c\/span\u003e\u003cspan style=\"font-family: Verdana; color: #112244;\"\u003e\u003c\/span\u003e","brand":"TAD","offers":[{"title":"Default","offer_id":687876571137,"sku":"TAD-RT874","price":74.25,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/4003\/products\/IMG_7687.JPG?v=1516138917","url":"https:\/\/www.humbuckermusic.mom\/products\/tad-el84-str-matched-quartet","provider":"Humbucker Music","version":"1.0","type":"link"}