Trade In Available

Any Questions? - 01233 624441

Free Delivery Available

Soundcraft Price Watch

Naim Audio 555PS

Availability: In stock

We Aim To Dispatch Goods Within 3 Working Days


Power Supply for CD555, CDX2, DAC, HDX, NDX, ND5 XS (Includes Power Line, excludes Burndy)


The ultra-low noise 555 PS was originally designed to power the CD555 CD player but is also backwards- compatible with the CDS3 and CDX2 players. It can further be used to enhance the performance of the Naim HDX hard disc player and Naim DAC.

Within the supply's low resonance case with isolating feet there is a transformer that is 40 per cent larger than that in the XPS with five secondary windings outputting seven regulated power supplies including a separate one for the CD555 clock circuitry. The 555 PS also has separate dedicated analogue and digital output sockets (Burndy) to minimise high frequency noise modulation of the analogue supplies.


Please contact us to arrange a demonstration.

Available In-Store Only
If you have any equiries feel free to call us on: +44 (0)1233 624441

Naim Audio 555PS front

More Views

Full Description

Not everyone sees hi-fi as Naim do. For them, 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 their reference 555 PS, the best power supply in our portfolio.

Originally designed to partner the world-class CD555 CD player, the 555 PS can also be used with the NDS and NDX network players, the HDX hard disk player/ server and their DAC digital to analogue converter as well as the CDX2 CD player. Whatever Naim product it partners, the 555 PS 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.

Technology & Craft

The 555 PS benefits from both their decades of experience and their 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 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 power supplies. The new Naim 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.


    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’s best-ever standards of stable, low-noise power


Naim Audio Power Supply Reference Manual


Naim Audio Discrete Regulator White Paper


Naim Audio Connection Guide (Latest 2015 version)





Write Your Own Review

Only registered users can write reviews. Please, log in or register


Power Outputs

± 22V, ± 10V, 12V, 2 x 15V

Mains Supply

100V, 115V, 230V; 50 or 60Hz

Dimensions (HxWxD)

87 x 432 x 314 mm


15.7 kg

Shipping Dimensions

240 x 590 x 500 mm

Supplied with



Brushed and black anodised


Brushed and black anodised