{"title":"RESERVE","description":null,"products":[{"product_id":"ray-tubes-core-reserve-6sn7","title":"Ray Tubes RESERVE 6SN7","description":"\u003ch2\u003eRESERVE 6SN7\u003c\/h2\u003e\n\u003cp\u003eThe 6SN7 vacuum tube is a dual triode usually found in the driver stage of power amps. It has been used in audio since its introduction in 1939, and by 1949 it had become the driver of choice in American builds of the famous Williamson circuit. Beyond audio, it was a crucial component in the world's first digital computer, ENIAC.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cp\u003eRESERVE is the Ray Tubes flagship tier. Bespoke design, small-batch production, and the most meticulous selection Ray Tubes does, for systems where the tube is the last variable left.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBespoke design and small-batch production\u003c\/li\u003e\n\u003cli\u003eHand-selected by engineers to our most meticulous standards\u003c\/li\u003e\n\u003cli\u003eHigher quality materials, including gold pins for longevity\u003c\/li\u003e\n\u003cli\u003eMonocrystalline carbon Magic Coating for improved heat dissipation\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\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMinimal Microphonics\u003c\/h2\u003e\n\u003cp\u003eIn certain uncommon conditions, 6SN7 vacuum tubes can experience elevated microphonics. The RESERVE 6SN7 includes a rubber damper, one per tube, that can be fitted to isolate the tube from vibration.\u003c\/p\u003e\n\u003ch2\u003eSound Characteristics \u003c\/h2\u003e\n\u003cp\u003eThe RESERVE 6SN7 offers a warm, natural sound with smooth treble and an outstanding midrange, and a relaxed vintage character that suits small-scale jazz, vocals, violins and brass.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe bass emphasizes an organic, fluid sound that makes it especially suitable for small-scale jazz and vocal performances.\u003c\/li\u003e\n\u003cli\u003eThe midrange frequencies are a key strength, with warm and expressive vocals offering a relaxed listening experience.\u003c\/li\u003e\n\u003cli\u003eThe treble performance emphasizes refinement over analytical detail, making instruments like violins and brass free of harshness.\u003c\/li\u003e\n\u003cli\u003eThe dynamics are well-balanced, while the soundstage is expansive with excellent depth, stereo separation, and layering of sound.\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-RV-6SN7-X1 ), matched pair\u003cbr\u003e( RT-RV-6SN7-X2 ), or matched quad ( RT-RV-6SN7-X4 )\u003c\/li\u003e\n\u003cli\u003eRubber damper, one per tube\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":47547708506196,"sku":null,"price":259.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 tubes)","offer_id":47547708538964,"sku":null,"price":589.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 tubes)","offer_id":47547708571732,"sku":null,"price":1256.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/7321\/3524\/files\/RESERVE6SN7-01.jpg?v=1787577856"},{"product_id":"ray-tubes-reserve-kt88","title":"Ray Tubes RESERVE KT88","description":"\u003ch2\u003eRESERVE KT88\u003c\/h2\u003e\n\u003cp\u003eThe KT88 is a beam tetrode introduced in 1956 as a variant of its smaller cousin, the KT66. Its name is derived from kinkless tetrode, an earlier name for the beam tetrode, and it's been popular in high-fidelity stereo systems since its introduction. Since New Old Stock of the KT88 is especially rare, Ray Tubes is proud to offer brand-new KT88 vacuum tubes.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cp\u003eRESERVE is the Ray Tubes flagship tier. Bespoke design, small-batch production, and the most meticulous selection Ray Tubes does, for systems where the tube is the last variable left.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBespoke design and small-batch production\u003c\/li\u003e\n\u003cli\u003eHand-selected by engineers to our most meticulous standards\u003c\/li\u003e\n\u003cli\u003eHigher quality materials, including gold pins for longevity\u003c\/li\u003e\n\u003cli\u003eMonocrystalline carbon Magic Coating for improved heat dissipation\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\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSound Characteristics \u003c\/h2\u003e\n\u003cp\u003eThe RESERVE KT88 combines power and resolution, with the strong dynamics, spacious soundstage, and well-controlled bass that complex rock and symphonic arrangements need.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe bass is powerful with deep, well-controlled frequencies ideal for complex arrangements such as rock and symphonic music.\u003c\/li\u003e\n\u003cli\u003eThe midrange frequencies are full and rich, reproducing vocals and instruments with excellent texture for a detailed, layered sound.\u003c\/li\u003e\n\u003cli\u003eThe treble performance is clear without being overly aggressive. A key strength is its high resolution.\u003c\/li\u003e\n\u003cli\u003eThe dynamic range is outstanding, while the soundstage is large and well-defined with excellent spatial separation.\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-RV-KT88-X1 ), matched pair\u003cbr\u003e( RT-RV-KT88-X2 ), or matched quad ( RT-RV-KT88-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":47547735375956,"sku":null,"price":249.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 tubes)","offer_id":47547735408724,"sku":null,"price":569.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 tubes)","offer_id":47547735441492,"sku":null,"price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/7321\/3524\/files\/RESERVEKT88-01.jpg?v=1787578317"},{"product_id":"ray-tubes-reserve-el34","title":"Ray Tubes RESERVE EL34","description":"\u003ch2\u003eRESERVE EL34\u003c\/h2\u003e\n\u003cp\u003eThe EL34 is a power pentode vacuum tube that was introduced by Mullard in 1955 and is usually found in an amplifier's final output stage. Befitting its British origins, the EL34 was commonly used in amps built by companies like Marshall and Vox, and as a result it became associated with British music of that era.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cp\u003eRESERVE is the Ray Tubes flagship tier. Bespoke design, small-batch production, and the most meticulous selection Ray Tubes does, for systems where the tube is the last variable left.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBespoke design and small-batch production\u003c\/li\u003e\n\u003cli\u003eHand-selected by engineers to our most meticulous standards\u003c\/li\u003e\n\u003cli\u003eHigher quality materials, including gold pins for longevity\u003c\/li\u003e\n\u003cli\u003eMonocrystalline carbon Magic Coating for improved heat dissipation\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\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSound Characteristics \u003c\/h2\u003e\n\u003cp\u003eThe RESERVE EL34 offers powerful low frequencies, a balanced midrange, clear high frequencies, and excellent resolution. Its wide dynamic range and soundstage make it ideal for large-scale, complex compositions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBass is solid and powerful, clearly showcasing the layering of low frequencies in genres like rock and electronic music.\u003c\/li\u003e\n\u003cli\u003eThe midrange frequencies are balanced and full with excellent detail reproduction and a rich, warm layering.\u003c\/li\u003e\n\u003cli\u003eThe treble performance is bright and transparent, exhibiting high levels of detail without excessive harshness or interference.\u003c\/li\u003e\n\u003cli\u003eThe dynamic range is very wide, while the soundstage is expansive with rich layers and an excellent sense of space.\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-RV-EL34-X1 ), matched pair\u003cbr\u003e( RT-RV-EL34-X2 ), or matched quad ( RT-RV-EL34-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":47547749990484,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 tubes)","offer_id":47547750023252,"sku":null,"price":493.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 tubes)","offer_id":47547750056020,"sku":null,"price":1099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/7321\/3524\/files\/RESERVEEL34-01.jpg?v=1787578755"},{"product_id":"ray-tubes-reserve-300b","title":"Ray Tubes RESERVE 300B","description":"\u003ch2\u003eRESERVE E300B\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\u003eThe RESERVE 300B delivers warm and elastic low frequencies, a delicate and layered midrange, and smooth treble, all married to rich detail and a wide, exceptionally well-defined soundstage.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBespoke design and small-batch production\u003c\/li\u003e\n\u003cli\u003eHand-selected by engineers to our most meticulous standards\u003c\/li\u003e\n\u003cli\u003eHigher quality materials, including gold pins for longevity\u003c\/li\u003e\n\u003cli\u003eMonocrystalline carbon Magic Coating for improved heat dissipation\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\u003cli\u003eSound Characteristics \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe RESERVE 300B delivers warm and elastic low frequencies, a delicate and layered midrange, and smooth treble, all married to rich detail and a wide, exceptionally well-defined soundstage.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe bass offers a delicate and textured low-end ideal for jazz and folk.\u003c\/li\u003e\n\u003cli\u003eThe midrange frequencies are full-bodied and emotional, particularly in vocals and strings, with warm and richly-layered sound.\u003c\/li\u003e\n\u003cli\u003eThe treble performance is clear and airy, presenting rich nuance with a natural and gentle sound.\u003c\/li\u003e\n\u003cli\u003eThe dynamic range effectively highlights contrasts in loud and\u003c\/li\u003e\n\u003cli\u003esoft passages, while the soundstage is wide and very well-defined with excellent depth and space.\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-RV-300B-X1 ), matched pair\u003cbr\u003e( RT-RV-300B-X2 ), or matched quad ( RT-RV-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":47547765063764,"sku":null,"price":482.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 tubes)","offer_id":47547765096532,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 tubes)","offer_id":47547765129300,"sku":null,"price":2199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/7321\/3524\/files\/RESERVE300B-01.jpg?v=1787579209"}],"url":"https:\/\/prospercables.com\/collections\/reserve.oembed","provider":"Prosper Cables ","version":"1.0","type":"link"}