Jean-Yves
Quality product.
Comment from March 10, 2025 — Experience from July 22, 2023
As CD support becomes increasingly rare in the audio industry, NAD continues to offer players for users with a disc collection. The C538 is a CD player designed with this in mind, focusing on sound reproduction and ease of use. It is engineered to deliver consistent performance at a controlled cost.
The C538’s chassis is built on a hybrid architecture combining thick steel and non-resonant plastic—a carefully calculated mix to minimize unwanted vibrations. The transport mechanism, mounted on reinforced steel rails, uses over 30 mounting points to maintain strict dimensional integrity. This attention to the mechanical base allows the laser to track the disc with precision, drastically reducing read errors that could affect the digital signal.
The internal assembly follows a strict logic of electrical isolation. The custom power supply, positioned at the far left of the chassis, is physically separated from the main audio board on the right. The connecting cables include ferrite rings to suppress electromagnetic interference. This active power supply delivers multiple, separate regulated voltages: one for the transport, one for the digital circuits, another for the analog stage, and a final one for the control circuits and display.
The front panel retains NAD’s signature look with its raised buttons and dimmable blue fluorescent matrix display. This display shows essential information—track number, elapsed time, remaining time—and supports CD Text to display titles and artists when these metadata are present on the disc.
At the heart of the digital-to-analog conversion, NAD has chosen the Wolfson WM8741 24-bit/192 kHz converter. This chip, renowned for its exemplary linearity at low levels and its ability to reveal micro-details, transforms the PCM data stream into an analog signal with harmonic distortion kept below 0.01%.
A high-precision Crystek clock module ensures the timing of the digital stream. This clock reduces jitter—those unwanted timing variations that blur signal accuracy—to negligible levels. The circuits use multilayer boards with surface-mounted components, allowing for short, optimized signal paths. Operational amplifiers buffer the output without adding noise or audible distortion.
The digital section offers two outputs: coaxial and Toslink optical. These connections allow you to use the C538 as a pure transport, handing off conversion to an external DAC of your choice. The analog output delivers a standard 2.2 V level via RCA connectors, compatible with any amplifier or preamplifier on the market.
Beyond traditional audio CDs (Red Book), the C538 accepts CD-R and CD-RW discs, whether they contain standard audio tracks or compressed MP3 and WMA files. This compatibility lets you play personal compilations burned on a computer, with up to 10 hours of music on a single disc in compressed format.
The included remote control duplicates the front panel commands while adding extra functions. Random mode shuffles tracks for a fresh listening experience. The Program function lets you create custom playlists of up to 20 tracks. Repeat options include looping a single track, the entire disc, or a user-defined A-B section. A Delete button allows you to remove tracks from the program without starting the selection over.
The transport mechanism operates with impressive discretion, with no perceptible mechanical noise during playback. The tray opens and closes smoothly, giving a reassuring sense of solidity for a device in this price range.
No, the C538 is a pure CD player, limited to standard audio CD formats, CD-R/RW, and MP3/WMA files burned to CD. For SACD playback, you’ll need to look at specialized universal players, which are generally more expensive.
The analog output uses the built-in Wolfson converter, delivering a tonally balanced and natural sound. The digital outputs let you use an external DAC, potentially of higher quality, or send the signal to a home theater amplifier for processing.
No, the C538 delivers a fixed output level of 2.2 V. Volume control is handled by the amplifier or preamplifier it’s connected to. This purist approach avoids introducing gain control circuits that could degrade the signal.
The C568 adds a front USB input for playing files from a flash drive, uses higher-grade operational amplifiers, and features a more sophisticated toroidal power supply. Its signal-to-noise ratio reaches 118 dB versus 110 dB for the C538. These improvements result in a more refined sound presentation, but the C538 retains the essential NAD qualities.
The removable power cable allows for replacement with a higher-quality model. A stable, vibration-isolated support optimizes the mechanism’s operation. Using an external DAC via the digital outputs can also enhance sound quality according to your preferences.
Jean-Yves
Quality product.
Comment from March 10, 2025 — Experience from July 22, 2023
Philippe
Having owned a 325 BEE for many years, the C538 is the perfect companion.
Comment from December 28, 2024 — Experience from December 16, 2024
Stéphan
Good turntable for an audiophile.
Comment from January 05, 2024 — Experience from September 30, 2023