{"product_id":"rega-isis-reference-cd-player","title":"Rega Isis Reference CD Player","description":"\u003ch2 class=\"heading-1 uppercase\"\u003e\u003cspan class=\"reference\"\u003eRega Isis Reference CD Player\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"intro\"\u003e\n\u003cp\u003eRega’s flagship CD player, the Isis, is a product manufactured to the highest achievable quality inside and out including Rega’s own unique CD technology, genuine black chrome lid and front facia and a custom solid anodised aluminium case weighing in at a notable 19 kg! We hope you enjoy this very special CD player; we have spent a very long time creating it, drawing on our many years of experience in specialist hi-fi manufacturing.\u003c\/p\u003e\n\u003ch2 class=\"heading-2\"\u003eRega’s flagship reference CD player\u003c\/h2\u003e\n\u003cp\u003eThe Isis reference CDP features discrete class A operational amplifiers and filters optimized for for sonic performance. Using twin Burr Brown DACs running in parallel dual mono mode, offering wide dynamic range with exceptionally low distortion.\u003c\/p\u003e\n\u003ch2 class=\"heading-5 uppercase\"\u003eKEY FEATURES\u003c\/h2\u003e\n\u003cul class=\"bullet-list green-bullets\"\u003e\n\u003cli\u003eDiscrete Class A operational amplifiers and filters\u003c\/li\u003e\n\u003cli\u003eOptimized for sonic performance\u003c\/li\u003e\n\u003cli\u003eAudio grade electrolytic capacitors\u003c\/li\u003e\n\u003cli\u003eRega ‘K Power’ smoothing capacitors\u003c\/li\u003e\n\u003cli\u003eWide dynamic range, low distortion\u003c\/li\u003e\n\u003cli\u003eRega custom designed and CNC machined aluminium case work\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNOLOGY BEHIND THE DESIGN\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-tab-content=\"\" class=\"accordion-content\" id=\"9ky4q1-accordion\"\u003e\n\u003cp\u003eOne important design goal was to take the current output, with no internal amplification within the D to A converter, and convert this to an analogue voltage, using discrete class A operational amplifiers and filters.\u003c\/p\u003e\n\u003cp\u003eThis circuit can then be optimised for sonic performance. (With most CD players the use of standard operational integrated circuits locks you into the sound of those particular integrated circuits, thus narrowing the scope for improvement). The class A current to voltage conversion amplifier, evolved out of the development of the first stage of the Rega Ios MC amplifier.\u003c\/p\u003e\n\u003cp\u003eIt shares identical demands of low noise, high drive capability and gain bandwidth required of the voltage to current amplifier. Careful choice has been made for every component in the digital and the analogue signal path to ensure the integrity of the signal.\u003c\/p\u003e\n\u003cp\u003eThe analogue and digital sections are bonded together using a substantial ground plane. It was found during the development of the player that adoption of RF ground plane techniques aided the sonic quality and therefore was included in the final design.\u003c\/p\u003e\n\u003cp\u003eCareful design of the PCBs ensures isolation of not just the digital and analogue sections, but also the motor, display and user interface processor. All sonically critical electrolytic capacitors have been by-passed with polypropylene or polyester film capacitors. In addition to this, large value electrolytic capacitors have also been by-passed with audio grade electrolytic capacitors.\u003c\/p\u003e\n\u003cp\u003ePower supply impedances in the digital to analogue converter are kept very low by the use of solid polymer capacitors. All power supplies utilise custom Rega K-Power smoothing capacitors, along with fast diodes which have been used throughout in power supply rectification.\u003c\/p\u003e\n\u003cp\u003eThe Isis uses enhanced and optimised control code for the control of the CD processor and user display. This speeds up the initialisation process by means of a tighter control interface between the user micro and CD processor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eANALOGUE SECTION\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-tab-content=\"\" class=\"accordion-content\" id=\"xjrb83-accordion\"\u003e\n\u003cp\u003eThe analogue section employs two Burr Brown PCM1794 digital to analogue converters, running in a parallel dual mono mode, driving a high performance discrete class A current to voltage amplifier.\u003c\/p\u003e\n\u003cp\u003eThis combination generates an exceptionally wide dynamic range, low distortion, and linear signal. This drives an enhanced discrete Class A output amplifier. The circuit is fully balanced from the digital to analogue converters to the balanced analogue XLR outputs. \u003c\/p\u003e\n\u003cp\u003eThe analogue stage has its own dedicated 50 VA mains transformer which ensures galvanic isolation between the digital and analogue sections of the player. You will find 10 separate power supply regulators are used in the analogue circuit and each individual amplifier stage has its own dedicated low noise voltage reference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDIGITAL SECTION\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-tab-content=\"\" class=\"accordion-content\" id=\"3zivuv-accordion\"\u003e\n\u003cp\u003eThe digital section is blue printed and selected, with major improvements to the mechanism, optical amplifier, DSP core, PLL, master clock \u0026amp; motor power supplies. Another 10 separate power supply regulators are used in the digital circuit.\u003c\/p\u003e\n\u003cp\u003eThe motor, user interface processor \u0026amp; display also have their own power supply. The digital stage also has its own 50 VA transformer again ensuring galvanic isolation. The mechanism is graded and matched to the servo circuits, to ensure the servo and optical amplifiers are working at their optimum point, improving error correction and playability.\u003c\/p\u003e\n\u003cp\u003eThe headroom of the optical amplifier has been improved by 10% by increasing the voltage in the power supply.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDIGITAL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-tab-content=\"\" class=\"accordion-content\" id=\"0pwzja-accordion\"\u003e\n\u003cp\u003eThis revolutionary player has been five years in design. Rega, together with its design partners have pioneered a highly advanced servo controller that uses the latest signal processing techniques to ensure that the raw data that is recovered from the disc is of the very highest quality. Because our fully digital servo can use highly advanced algorithms, the laser spot is kept in the optimum position for data recovery in terms of focus, size and tracking.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEXTRA ERROR CORRECTION\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-tab-content=\"\" class=\"accordion-content\" id=\"841bsf-accordion\"\u003e\n\u003cp\u003ePrevious chip-sets always made compromises on error correction. Formerly it was possible to have good jog resistance or better musical performance.\u003c\/p\u003e\n\u003cp\u003eThe Rega chip-set allows optimum musical performance and optimised jog\/vibration resistance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSUPER STABLE PHASE LOCK LOOP\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-tab-content=\"\" class=\"accordion-content\" id=\"2u1fpc-accordion\"\u003e\n\u003cp\u003eThe entire IC is clocked via a very special PLL of our own design. This allows better CD data recovery as well as a big improvement in the quality of the data delivered to the DAC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOW NOISE DIGITAL DESIGN\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-tab-content=\"\" class=\"accordion-content\" id=\"r5dv3f-accordion\"\u003e\n\u003cp\u003eIn the design of our CPU IC, we went to great lengths to ensure that the data and address bus noise was kept to an absolute minimum. This ensures the ground and signal connections to the DAC are as ‘clean’ as is possible.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUSB INPUT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-tab-content=\"\" class=\"accordion-content\" id=\"xvjgdt-accordion\"\u003e\n\u003cp\u003eAllowing direct connection to a laptop or PC via a USB A-B lead to stream internet radio, MP3 or WMA files directly from your computer via the high quality Isis internal DAC.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eThe USB benefits once again 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 eliminate computer power supply noise.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDISC ANALYSIS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-tab-content=\"\" class=\"accordion-content\" id=\"6zwnam-accordion\"\u003e\n\u003cp\u003eThe Isis will analyse each disc on an individual basis. During the initialising period (rather like the engine management system on a modern car which optimises the engine settings to temperature, fuel quality etc.), the Isis will adjust itself to each disc in order to give optimal trouble free reading.\u003c\/p\u003e\n\u003cp\u003eFor this reason the Isis will often play discs with marks or scratches that other players cannot read.\u003c\/p\u003e\n\u003cp\u003eWe hope that you enjoy this product as much as we have enjoyed creating it.\u003c\/p\u003e\n\u003ch2\u003eSPECIFICATIONS\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003cbr\u003e17 Hz - 20 kHz ±0.1 dB\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTHD+Noise\u003c\/strong\u003e\u003cbr\u003e\u0026lt; 0.0013%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWavelength\u003c\/strong\u003e\u003cbr\u003e780 nm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Sampling Frequency\u003c\/strong\u003e\u003cbr\u003e44.1 kHz\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003cbr\u003e23 W\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMains Fuses (230 V Version)\u003c\/strong\u003e\u003cbr\u003eAnalogue T500 mA \/ Digital T-500 mA\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMains Fuses (115 V Version)\u003c\/strong\u003e\u003cbr\u003eAnalogue T-1A \/ Digital T-1A\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003cbr\u003e434 × 112 × 350 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions required to operate (W × H × D)\u003c\/strong\u003e\u003cbr\u003e434 × 200 × 350 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003cbr\u003e19 kg\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"The Music Room","offers":[{"title":"Default Title","offer_id":51268128375065,"sku":"0301newrega","price":11845.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Rega_Isis_Reference_CD_Player_1.jpg?v=1769016679","url":"https:\/\/tmraudio.com\/products\/rega-isis-reference-cd-player","provider":"The Music Room","version":"1.0","type":"link"}