Naim CD555 CD Player (2007) / Naim CD555PS DR Power Supply (2013)

Just back from NAIM  CD555 RMA-069391 ( service and gearbox replacement ).

Here we have an example of the top of the range compact disc player from Naim Audio – the CD 555, which comes complete with its own dedicated power supply – the CD 555PS DR. Both units are in very good condition with a couple of small blemishes on the front edge of the power supply – please see photographs. They are supplied in original Naim packaging, and come with remote control, manuals, PowerLine Lite, Hi-Line Interconnect, Burndy cable plus of course our standard 3 month warranty.
Naim Audio Say….
The CD 555 is our reference CD player, the finest we have ever made. It’s a statement of our engineering excellence, a showcase for our core beliefs. Of course, it’s a fast, detailed and dynamic-sounding performer: anything less would be fundamentally at odds with who we are and what we do. But more than any one particular aspect of its presentation, the CD555’s genius is the way it brings each disparate strand of your music together into one fluid, natural and involving performance. This, we believe, is how hi-fi should sound.
Zero-compromise quality demands single-minded engineering. The CD 555 ignores those disc formats you don’t need. It avoids features that don’t contribute to its performance. It represents not a radical step into the unknown, but the ultimate expression of everything we’ve learned. So it uses a top-loading transport mechanism and a heavyweight brass sub-chassis which suspends critical electronics away from microphonic interference. A carefully designed, low-resonance CD clamp avoids the vibration-induced errors that afflict conventional CD mechanisms while its digital-to-analogue converter circuitry is shielded by a dedicated enclosure, ensuring superior isolation from electric and magnetic fields.
Wiring alone takes six hours of dedicated craftsmanship, while many of the CD 555’s components are hand-selected to ensure that only the very best of each type make their way into each player. And as with many Naim Audio products, its power supply components are housed in an entirely separate unit, the CD 555PS, for ultimate performance.
Features:
Massive aluminium chassis to minimise resonance and vibration
Critical electronics suspended on a brass sub chassis via coil springs
Low-resonance CD clamping system using rare-earth magnetic puck
Non-reflective coatings used around the CD mechanism to reduce interference and noise
Shielded enclosure to isolate DACs, plus separate low-jitter clock circuit with its own power supply
Hand-built from carefully selected components
Specifications:
De-emphasis: ±0.1dB referred to main response
Line Outputs Fixed (level): 2.1V RMS at 1kHz
THD + N: <0.1%, 10Hz -18kHz at full level
Load Impedance: 10kΩ (min.)
Output Impedance: 10Ω (max.)
Analogue: DIN, RCA
Frequency Response: 10Hz – 20kHz, +0.1/-0.5dB
Dimensions: 432 (W) x 314 (D) x 114 (H) mm
Weight: 20.2 kg

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 CD 555PS DR, the best power supply in our portfolio.
Originally designed to partner our world-class CD 555 CD player, the CD 555PS DR 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 CD 555PS 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 CD 555PS 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 CD 555.
The CD 555PS 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
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
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

Malcolm Steward, Oct 2007
“It doesn’t favour any particular genre over any other; it simply extracts the most from whatever you feed it”

David Price, Sep 2006
“the best Compact Disc player I’ve heard to date, bar none!”

Or if you want to read a full review from US publication from Stereophile magazine please click here