{"product_id":"5u4-anniversary-edition-vacuum-tube","title":"5U4G RK Anniversary Edition Vacuum Tube","description":"\u003c!-- ***** Generated by Builder.io on Wed, 30 Sep 2026 15:25:08 GMT ***** --\u003e\n\u003cstyle type=\"text\/css\" class=\"builder-styles builder-api-styles\"\u003e\/*start:h47494*\/.css-h47494{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;-webkit-align-items:stretch;-webkit-box-align:stretch;-ms-flex-align:stretch;align-items:stretch;}\/*end:h47494*\/ \/*start:gmk9up*\/.css-gmk9up.builder-block{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;position:relative;-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;box-sizing:border-box;margin-top:20px;height:auto;margin-right:200px;margin-left:200px;padding-bottom:30px;}@media only screen and (max-width:991px){.css-gmk9up.builder-block{margin-left:20px;margin-right:20px;}}\/*end:gmk9up*\/ \/*start:hgfgng*\/.css-hgfgng.builder-block{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;position:relative;-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;box-sizing:border-box;margin-top:20px;line-height:normal;height:auto;}\/*end:hgfgng*\/ \/*start:1qggkls*\/.css-1qggkls{outline:none;}.css-1qggkls p:first-of-type,.css-1qggkls .builder-paragraph:first-of-type{margin:0;}.css-1qggkls \u003e p,.css-1qggkls .builder-paragraph{color:inherit;line-height:inherit;-webkit-letter-spacing:inherit;-moz-letter-spacing:inherit;-ms-letter-spacing:inherit;letter-spacing:inherit;font-weight:inherit;font-size:inherit;text-align:inherit;font-family:inherit;}\/*end:1qggkls*\/ \/*start:1n465md*\/.css-1n465md.builder-block{height:0;width:0;display:block;opacity:0;overflow:hidden;pointer-events:none;}\/*end:1n465md*\/\u003c\/style\u003e\n\u003cdiv class=\"builder-component builder-component-bc7942e13ed04a1da80b98ffa485bee3\" data-name=\"product-description\" data-source=\"Rendered by Builder.io\"\u003e\n\u003cdiv class=\"builder-content\"\u003e\n\u003cdiv data-builder-component=\"product-description\" data-builder-content-id=\"bc7942e13ed04a1da80b98ffa485bee3\" data-builder-variation-id=\"bc7942e13ed04a1da80b98ffa485bee3\"\u003e\n\u003cdiv class=\"builder-blocks css-h47494\"\u003e\n\u003cdiv class=\"builder-block builder-f23d56b2eceb41d485df72be7f57978f css-gmk9up\"\u003e\n\u003cdiv class=\"builder-block builder-e98d714ebb764b9c8bdfa1c0c4953dc0 builder-has-component css-hgfgng\"\u003e\n\u003cp class=\"\"\u003eThe Special Limited Edition 5U4 Anniversary Edition takes an already exceptional rectifier and gives it an even more exclusive presentation. Created for enthusiasts who want something beyond the standard Anniversary Edition, this version combines the character of our premium 5U4 with a distinctive limited-edition look. For the standard Anniversary Edition, it is a statement piece for the serious tube enthusiast who values performance, craftsmanship, and exclusivity.\u003c\/p\u003e\n\u003cp class=\"\"\u003eThe 5U4 is a directly heated full-wave rectifier tube intended for high-voltage power-supply rectification in vacuum-tube equipment, making it an essential part of an amplifier's power supply. This Special Limited Edition retains the fundamental 5U4 rectifier format while adding the distinctive presentation that separates it from the standard Anniversary Edition. It is an excellent choice for a premium amplifier where the appearance and selection of every tube matter just as much as the components inside the chassis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"builder-component builder-component-bc7942e13ed04a1da80b98ffa485bee3\" data-name=\"product-description\" data-source=\"Rendered by Builder.io\"\u003e\n\u003cdiv class=\"builder-content\"\u003e\n\u003cdiv data-builder-component=\"product-description\" data-builder-content-id=\"bc7942e13ed04a1da80b98ffa485bee3\" data-builder-variation-id=\"bc7942e13ed04a1da80b98ffa485bee3\"\u003e\n\u003cdiv class=\"builder-blocks css-h47494\"\u003e\u003cimg src=\"https:\/\/cdn.builder.io\/api\/v1\/pixel?apiKey=48d1cdcd52ec4d289f1ef8c4f75da167\" alt=\"\" role=\"presentation\" width=\"0\" height=\"0\" class=\"builder-block builder-pixel-4w78pbhe8cd css-1n465md\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"KR Audio","offers":[{"title":"Single","offer_id":67607525196090,"sku":"5u4-anniversary-edition","price":775.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0834\/0245\/7402\/files\/KR_Audio_5U4_Aniversary_Edition.jpg?v=1791299747","url":"https:\/\/www.moon-audio.com\/products\/5u4-anniversary-edition-vacuum-tube","provider":"Moon Audio","version":"1.0","type":"link"}