{"product_id":"mesa-boogie-tube-kit-triple-crown-50-amplifier","title":"Mesa Boogie Tube Kit, Upgraded, Triple Crown 50 Amplifier","description":"\u003cspan color=\"#142747\" face=\"Verdana\" size=\"-1\" style=\"color: #142747; font-family: Verdana;\"\u003e\u003cb\u003eThis is an upgraded Tube Kit designed to replace all of the tubes in your Mesa Boogie Triple Crown Head \u0026amp; Combos. It includes the upgraded SPAX7 preamp tubes as opposed to the standard 12ax7's.\u003c\/b\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan color=\"#339966\" style=\"color: #339966;\"\u003e\u003cb\u003eThe Triple Crown 50 Upgraded Kit includes:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e\u003cb\u003e2x\u003c\/b\u003e MESA Matched EL34 Tubes - GC STR-447\u003cbr\u003e\u003cb\u003e6x\u003c\/b\u003e MESA Premium SPAX7 Preamp Tubes \u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003e(upgrade from 12ax7)\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cb\u003e1x\u003c\/b\u003e TAD 12AT7-ECC81 Preamp Tube - Premium Grade\u003cbr\u003e\u003cbr\u003eMESA SPAX7 preamp tubes are a low noise super-premium grade substitute for any 12AX7 positions - They are a \"Special Requirement Preamp Tube\" that possess an even higher standard of overall performance, due to their incredibly low sensitivity to microphonic noise - This is the ultimate preamp tube to use in all critical gain stage positions - It is the absolute best of the best!\u003c\/span\u003e","brand":"Humbucker Music","offers":[{"title":"Default Title","offer_id":13762377121838,"sku":"MBTC30TK","price":299.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/4003\/products\/mesa-boogie-tube-kit_8fc3937e-6cd0-4de1-9d31-7b2a879a0632.jpg?v=1541299244","url":"https:\/\/www.humbuckermusic.mom\/products\/mesa-boogie-tube-kit-triple-crown-50-amplifier","provider":"Humbucker Music","version":"1.0","type":"link"}