NAD MDC USB DSD Module – USB DAC Upgrade

The NAD MDC USB DSD module is a DAC expansion card that adds an asynchronous USB input for high-res PCM (up to 24-bit / 192kHz) and DSD to MDC-capable NAD devices.

The clean bridge between computer and system – turning your PC into a proper music source.

Why the MDC USB DSD module?

Because the USB port on many computers is wasted sonic potential. The module brings an asynchronous USB-B input into your NAD: instead of the computer's imprecise clocking, the module's precise clock takes over – eliminating jitter and delivering clear, stable playback. It plays PCM up to 24-bit / 192kHz and native DSD directly.

What you get

An internal upgrade with no external box and no additional power supply: you connect a PC or Mac via USB-B to your NAD and use its system as a high-quality computer DAC. Windows needs a driver install, macOS runs driverless. The short, internal signal path keeps the setup tidy.

Who is the MDC USB DSD module for – and who isn't it for?

Right for anyone who manages their music collection on a computer and wants to use their MDC-capable NAD as a high-res USB DAC. Bottom line: the module fits the MDC generation (e.g. C368, C388, M32, M12, C390DD) – not the newer MDC2 devices like C399 or M33. If you're after network streaming rather than a PC connection, the BluOS module serves you better.

Our verdict

The MDC USB DSD module is the targeted upgrade for PC-HiFi fans: an asynchronous USB DAC with DSD right in the NAD, no cable clutter. Your computer becomes a serious source.

Technical specifications

• Module type: MDC (Modular Design Construction)
• Function: USB digital-to-analog converter
• Input: 1× asynchronous USB-B (PC/Mac)
• PCM: up to 24-bit / 192kHz
• DSD: native playback
• Clocking: asynchronous (jitter reduction)
• Drivers: Windows requires a driver, macOS is driverless
• Compatible with: MDC-capable NAD amplifiers and preamps (e.g. C368, C388, M12, M32, C390DD)

Frequently asked questions

What does the asynchronous USB input on the MDC USB DSD do?

In asynchronous USB operation, the module – not the computer – sets the clock. This prevents timing transmission errors (jitter) that make the sound hard and imprecise. The result is cleaner, calmer playback of your digital files, including high-resolution PCM and DSD formats.

Does the MDC USB DSD module also play DSD files?

Yes. Alongside PCM up to 24-bit / 192kHz, the module plays back native DSD – the high-resolution format used by many audiophile downloads and SACD rips. Simply connect your PC or Mac via USB-B to your NAD and play your high-res collection directly through the system.

Why buy the MDC USB DSD module at HD Zürisee?

With a retrofit, what matters is the right module and a clean install. At HD Zürisee in Wädenswil we check whether your device is MDC-compatible, fit the module professionally and help with driver setup on your computer. Authorized NAD dealer with an in-house technician, warranty and service.

Goes well with: integrated amplifiers, DACs, streaming amplifiers and floorstanding speakers.