{"product_id":"mesa-boogie-express-550-retube-kit","title":"Mesa Boogie Tube Kit, Upgraded, Express 5:50 Amplifier","description":"\u003cp\u003e\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 Express 5:50 Head or Combo. 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 Express 5:50 Upgraded Tube Kit includes:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e 2 x \u003c\/span\u003e\u003cspan color=\"#142747\" face=\"Verdana\" size=\"-1\" style=\"color: #142747; font-family: Verdana;\"\u003eMESA Matched 6L6 Tubes, Matched, STR-445 Premium Grade\u003c\/span\u003e\u003cspan color=\"#142747\" face=\"Verdana\" size=\"-1\" style=\"color: #142747; font-family: Verdana;\"\u003e\u003cbr\u003e 5 x MESA SPAX7 Preamp Tubes \u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003e(upgrade from standard 12ax7)\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#142747\" face=\"Verdana\" size=\"-1\" style=\"color: #142747; font-family: Verdana;\"\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\u003c\/p\u003e","brand":"Humbucker Music","offers":[{"title":"Default Title","offer_id":3324198273,"sku":"MESART550","price":249.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/4003\/products\/mesa-boogie-tube-kit_924653d9-7fd1-4758-b49e-522dbd2cd3b2.jpg?v=1541298999","url":"https:\/\/www.humbuckermusic.mom\/products\/mesa-boogie-express-550-retube-kit","provider":"Humbucker Music","version":"1.0","type":"link"}