{"product_id":"rega-valve-isis-cd-player","title":"Rega Valve Isis CD Player","description":"\u003cp\u003eRega’s Valve Isis represents a decade of research into the application of vacuum-tube topology within a reference-level CD player. By employing a valve-based analogue output stage driven by twin Wolfson WM8741 digital-to-analogue converters, it delivers the textural richness and harmonic integrity associated with classic tube design while preserving the resolution and low noise floor of an advanced digital engine. The result is a player that communicates the rhythmic drive and tonal density of a recording without editorial warmth or artificial softening.\u003c\/p\u003e\u003cp\u003eEvery subsystem reflects a commitment to galvanic isolation and power-supply refinement. Separate 50 VA transformers serve the digital and analogue sections, while the USB input benefits from its own regulated supply and double-clocked interface to reject computer-borne noise. The differential amplifier stage uses military-grade 5814A triodes, followed by a passive Butterworth filter and an ECC88-based output buffer driving a transformer-coupled balanced output. This unorthodox architecture yields predominantly even-order harmonic distortion at a modest 0.06% THD, allowing the valve circuit to contribute spatial openness and midrange presence without obscuring the precision of the digital core.\u003c\/p\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\n\u003ch3 style=\"margin:1.25em 0 0.5em\"\u003e\n\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" width=\"18\" height=\"18\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"display:inline-block;width:1.1em;height:1.1em;vertical-align:-0.18em;margin-right:0.45em\" aria-hidden=\"true\"\u003e\u003cpath d=\"M16 18a2 2 0 0 1 2 2a2 2 0 0 1 2 -2a2 2 0 0 1 -2 -2a2 2 0 0 1 -2 2zm0 -12a2 2 0 0 1 2 2a2 2 0 0 1 2 -2a2 2 0 0 1 -2 -2a2 2 0 0 1 -2 2zm-7 12a6 6 0 0 1 6 -6a6 6 0 0 1 -6 -6a6 6 0 0 1 -6 6a6 6 0 0 1 6 6z\"\u003e\u003c\/path\u003e\u003c\/svg\u003eHighlights\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding-left:0;margin:0 0 1em\"\u003e\n\u003cli style=\"margin:0 0 0.35em\"\u003e✓ Rega’s advanced CD technology\u003c\/li\u003e\n\u003cli style=\"margin:0 0 0.35em\"\u003e✓ Twin Wolfson DACs\u003c\/li\u003e\n\u003cli style=\"margin:0 0 0.35em\"\u003e✓ Rega ‘K-Power’ smoothing capacitors\u003c\/li\u003e\n\u003cli style=\"margin:0 0 0.35em\"\u003e✓ Custom designed reference case\u003c\/li\u003e\n\u003cli style=\"margin:0 0 0.35em\"\u003e✓ CNC reference remote control\u003c\/li\u003e\n\u003cli style=\"margin:0 0 0.35em\"\u003e✓ Lifetime warranty against manufacture defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\n\u003ch3 style=\"margin:1.25em 0 0.5em\"\u003e\n\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" width=\"18\" height=\"18\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"display:inline-block;width:1.1em;height:1.1em;vertical-align:-0.18em;margin-right:0.45em\" aria-hidden=\"true\"\u003e\u003cpath d=\"M4 7h3a1 1 0 0 0 1 -1v-1a2 2 0 0 1 4 0v1a1 1 0 0 0 1 1h3a1 1 0 0 1 1 1v3a1 1 0 0 0 1 1h1a2 2 0 0 1 0 4h-1a1 1 0 0 0 -1 1v3a1 1 0 0 1 -1 1h-3a1 1 0 0 1 -1 -1v-1a2 2 0 0 0 -4 0v1a1 1 0 0 1 -1 1h-3a1 1 0 0 1 -1 -1v-3a1 1 0 0 1 1 -1h1a2 2 0 0 0 0 -4h-1a1 1 0 0 1 -1 -1v-3a1 1 0 0 1 1 -1\"\u003e\u003c\/path\u003e\u003c\/svg\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eAllows direct connection to a laptop or PC via a USB A-B lead to stream internet radio, MP3 or WMA files directly from a computer via the high quality Isis internal DAC. The USB input uses an isolated double-clocked USB interface, which permits the digital to analogue stage to be used with a computer USB interface and its own regulated power supply. The USB benefits from galvanic isolation from the main circuitry of the Isis player which eliminates the flow of earth currents between the CD and host computer, and eliminates computer power supply noise.\u003c\/p\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\n\u003ch3 style=\"margin:1.25em 0 0.5em\"\u003e\n\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" width=\"18\" height=\"18\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"display:inline-block;width:1.1em;height:1.1em;vertical-align:-0.18em;margin-right:0.45em\" aria-hidden=\"true\"\u003e\u003cpath d=\"M11.46 20.846a12 12 0 0 1 -7.96 -14.846a12 12 0 0 0 8.5 -3a12 12 0 0 0 8.5 3a12 12 0 0 1 -.09 7.06\"\u003e\u003c\/path\u003e\u003cpath d=\"M15 19l2 2l4 -4\"\u003e\u003c\/path\u003e\u003c\/svg\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003eAll Rega products carry a Lifetime Limited Warranty.\u003c\/p\u003e\n\u003cp\u003eEvery product is designed and assembled in the UK to the highest possible standard. This warranty covers confirmed manufacturing defects. This warranty does not cover wear and tear, or parts that are considered consumable. Any unauthorised modifications or failure to follow the Rega recommended guidelines in the product manual may invalidate the warranty. Due to local laws, warranties may vary by country in which units are sold.\u003c\/p\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ctable class=\"pu-table\" style=\"width:100%;border-collapse:separate;border-spacing:0;border:0;box-shadow:none;outline:none;background:none;table-layout:fixed;margin:0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:0;padding:0\"\u003e\n\u003ch3 style=\"margin:1.25em 0 0.5em\"\u003e\n\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" width=\"18\" height=\"18\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"display:inline-block;width:1.1em;height:1.1em;vertical-align:-0.18em;margin-right:0.45em\" aria-hidden=\"true\"\u003e\u003cpath d=\"M4 17v2a2 2 0 0 0 2 2h12a2 2 0 0 0 2 -2v-2\"\u003e\u003c\/path\u003e\u003cpath d=\"M7 11l5 5l5 -5\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 4l0 12\"\u003e\u003c\/path\u003e\u003c\/svg\u003eDownloads\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli style=\"margin:0 0 0.35em\"\u003e\u003ca href=\"https:\/\/www.rega.co.uk\/download\/valve-isis-manual-english-text-only.pdf\" target=\"_blank\" rel=\"noopener nofollow\"\u003eValve Isis User Manual (English)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0 0 0.35em\"\u003e\u003ca href=\"https:\/\/www.rega.co.uk\/download\/valve-isis-manual-text-french.pdf\" target=\"_blank\" rel=\"noopener nofollow\"\u003eValve Isis User Manual (French)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0 0 0.35em\"\u003e\u003ca href=\"https:\/\/www.rega.co.uk\/environmental-labelling-of-packaging\/Environmental_Labelling_of_Packaging_-_Valve_Isis_-_Ver_1.pdf\" target=\"_blank\" rel=\"noopener nofollow\"\u003eRaccolta Differenziata\/Recycling Info (Version 1)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Rega","offers":[{"title":"Default Title","offer_id":43181653622882,"sku":null,"price":13025.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2475\/2780\/files\/rega-valve-isis-cd-player-1.jpg?v=1786009002","url":"https:\/\/pearlaudio.com\/products\/rega-valve-isis-cd-player","provider":"Pearl Audio","version":"1.0","type":"link"}