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Rega

Rega Isis

Rega Isis

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Rega Isis

Rega’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; Rega has spent a very long time creating it, drawing on their many years of experience in specialist hi-fi manufacturing.

​The Isis reference CDP features discrete class A operational amplifiers and filters optimised for for sonic performance. Using twin Burr Brown DACs running in parallel dual mono mode, offering wide dynamic range with exceptionally low distortion.

One 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.

This 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.

It 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.

The 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.

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