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555 PS DR – The ultimate upgrade
Not everyone sees hi-fi as Naim Audio does. For Naim, a smooth, stable, low-noise power supply isn’t just desirable: it’s fundamental to proper hi-fi performance. Nowhere is that belief more clearly exemplified than in Naim’s reference 555 PS DR, the best power supply in the Naim portfolio.
Originally designed to partner the world-class CD555 CD player, the 555 PS can also be used with NDS and NDX network players, HDX hard disk player/ server and DAC digital to analogue converter as well as the CDX2 CD player. Whatever Naim Audio product it partners, the 555 PS DR will improve every aspect of your favourite music. Voices and instruments become clearer and more natural. Perceived dynamic range increases too, while timing – music’s fundamental sense of rhythm and accuracy – snaps into even greater focus.
Features
- Seven regulated supply voltages, including a separate supply for the CD555 clock circuit
- Low-resonance case with isolating feet
- Massive transformer, 40 percent larger than that fitted to the XPS
- Supplied with Power-Line mains cable as standard
- All-new Discrete Regulator (DR) configuration, delivering Naim Audio’s best-ever standards of stable, low-noise power
555 PS Power Supply
Technology & Craft
The 555 PS benefits from both decades of experience and Naim’s relentless pursuit of superior sound quality. Its massive transformer, some 40 percent larger than that fitted to the XPS power supply, features five separate windings outputting to seven regulated supply voltages, including an output specifically intended for use with the clock circuitry of the Naim CD555.
The 555 PS was updated in 2012 as a result of a two year project to develop a new discrete regulator (DR) for Naim Audio power supplies. The new Naim Audio DR now features, alongside improvements to the wire routing, mechanical decoupling and internal layout. These enhancements, developed through intensive listening tests, significantly raise performance and make music even more communicative and enjoyable.
