{"product_id":"ray-tubes-select-300b","title":"Ray Tubes SELECT 300B","description":"\u003ch2\u003eSELECT 300B\u003c\/h2\u003e\n\u003cp\u003eThe 300B is a legendary tube. Introduced in 1938, it powered the cinemas of Hollywood's Golden Age. Audiophiles have treasured it for decades for its low noise and reliability. Ray Tubes is proud to introduce its take on a classic.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cp\u003eSELECT is the Ray Tubes tier most listeners should start with. Hand-selected, gold-pinned, and consistent enough that the tube stops being the variable in your system.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned and manufactured by a team with decades of experience\u003c\/li\u003e\n\u003cli\u003eHand-selected by engineers to ensure only the top tubes make the cut\u003c\/li\u003e\n\u003cli\u003eGold pins for durability and longevity\u003c\/li\u003e\n\u003cli\u003eSubstantially more consistent performance than New Old Stock\u003c\/li\u003e\n\u003cli\u003eUnlike NOS and most other new production, covered by the Ray Tubes\u003cbr\u003eOne Year Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSounds Characteristics \u003c\/h2\u003e\n\u003cp\u003eThe SELECT 300B captures the heart of what makes the 300B tube legendary, with lush mids, graceful highs, and a coherent, musical bass foundation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe bass is controlled and cohesive, with moderate extension and just the right amount of body. Ideal for genres like acoustic, jazz, and classical.\u003c\/li\u003e\n\u003cli\u003eThe midrange is where the SELECT 300B truly excels. Rich, full-bodied tonal character with a touch of warmth. Vocals are especially well rendered, from baritone to soprano.\u003c\/li\u003e\n\u003cli\u003eThe treble delivers the characteristic smoothness of the 300B, with layered extension and a natural sense of sparkle. A soft warmth in the upper register gives strings and female vocals a refined presence.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAvailable as a single tube ( RT-SL-300B-X1 ), matched pair\u003cbr\u003e( RT-SL-300B-X2 ), or matched quad ( RT-SL-300B-X4 )\u003c\/li\u003e\n\u003cli\u003eUser handbook featuring burn-in guidelines\u003c\/li\u003e\n\u003cli\u003eCertificate of authenticity and warranty\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ray Tubes","offers":[{"title":"Single (1 tube)","offer_id":47528628584532,"sku":null,"price":239.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 tubes)","offer_id":47528628617300,"sku":null,"price":529.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 tubes)","offer_id":47528628650068,"sku":null,"price":1099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/7321\/3524\/files\/SELECT300B-01.jpg?v=1787237183","url":"https:\/\/prospercables.com\/products\/ray-tubes-select-300b","provider":"Prosper Cables ","version":"1.0","type":"link"}