Naim – CD 555

Naim cd555

CD555 – Focus is everything

The CD555 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.


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

Separate high-performance power supply (555 PS) to isolate sensitive electronics from electromagnetic interference

Hand-built from carefully selected components

Technology & Craft

Zero-compromise quality demands single-minded engineering. The CD555 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 CD555’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 products, its power supply components are housed in an entirely separate unit, the 555 PS, for ultimate performance.

Audio Outputs

Analogue: DIN, RCA

Line Outputs Fixed (level): 2.1V RMS at 1kHz

Output Impedance: 10Ω (max.)

Load Impedance: 10kΩ (min.)

Frequency Response: 10Hz – 20kHz, +0.1/-0.5dB

THD + N: <0.1%, 10Hz -18kHz at full level

De-emphasis: ±0.1dB referred to main response


Remote Control: Infra Red (RC5)

Remote Input: RCA on rear (RC5)

RS232: RJ45 (fitted but optionally connected)


CD Formats: Red Book

Disc Compatability: CD, CD-R

User Control

Front Panel: Seven button matrix

Handheld: R-Com


Power Supply Options: 555PS, 2 x 555PS


Power Supply: 555 PS


NAC 252, 552 PS, NAP 500, 500 PS


Dimensions (HxWxD): 114 x 432 x 314 mm

Weight: 20.2 kg

Supplied with: Hi-Line, R-Com, Burndy x 2, Remote Control NARCOM 4, Clamp 6

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