Naim CD 555PS DR Power Supply & PowerLine Cable (2018)

Since almost when time began Naim, the specialist British Hi-Fi maker has spoken about the importance of power supplies when used with electronic components. This example of the 555 PS DR dates from 2018, is in very good condition and is supplied in new Naim packaging with PowerLine mains cable, manual plus our regular three-month warranty is included.
Naim Say….
Not everyone sees hi-fi as we do. For us, 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 our reference 555 PS DR, the best power supply in our portfolio.
Originally designed to partner our world-class CD555 CD player, the 555 PS can also be used with our ND 555, NDS, NDX and NDX 2 network players, our HDX hard disk player/ server and our 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.
The 555 PS benefits from both our decades of experience and our relentless pursuit of superior sound quality. Its massive transformer, some 40 percent larger than that fitted to our 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 our 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.
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
All-new Discrete Regulator (DR) configuration, delivering Naim Audio’s best-ever standards of stable, low-noise power
Specifications:
Finish: Brushed and black anodised
Power Outputs: ± 22V, ± 10V, 12V, 2 x 15V
Mains Power Supply: 100V, 115V, 230V; 50 or 60Hz
Dimensions: 432 (W) x 314 (D) x 87 (H) mm
Weight: 15.7 kg
PowerLine Cable:
To us, a smooth, stable, low-noise supply is critical. It’s absolutely fundamental to performance. That’s why we designed the PowerLine mains cable. Its complex, precision-engineered construction has been defined and refined following solid mechanical engineering principles and then confirmed after hundreds of hours of testing in the listening room.
We invite you to experience the difference it can make to your system for yourself at your local Naim Audio retailer. You won’t be disappointed.
The PowerLine mains plug features a thermoset resin case carrying floating pins that align to provide an enhanced contact area with the socket connections. The stripped cable ends are secured by specially profiled clamp screws and the cable is both decoupled and clamped by an ingenious die-cast component.
The PowerLine cable itself is custom manufactured with 4mm² cross section copper conductors, individual dielectric insulation and a final rubber outer that provides both high levels of inherent mechanical damping, and the correct stiffness to aid dressing on installation.
Completing the PowerLine is an IEC inlet plug that continues many of the decoupling and electrical continuity themes of the mains plug. It features floating contacts, combined decoupling and clamping, double wiper contacts and case eddy current suppression.