

The heart of an amplifier is its output stage.

As well as the headphone output, there are line-level output jacks that can be set to full-range preamp mode, or to output a low-passfiltered signal to a subwoofer amplifier. This module was installed in my review sample of the M32 another MDC module, the DD-HDMI-1 ($299), is available but was not supplied to this home-theateraverse reviewer. The optional MDC DD-BluOS module ($399) provides Bluetooth aptX and Roon Ready Ethernet connectivity.

While the M32 comes with a USB port and digital outputs, the usual AES/EBU and optical and coaxial digital inputs are hosted on the MDC S/PDIF module. The M32 features NAD's Modular Design Construction, in which a back-plane topology allows up to four extra modules to be installed for additional functionality. It even has the same eight ventilation grilles inset in the black top panel. The M32 is the same size as the M50.2, and its smart-looking combination of matte black and gray-anodized aluminum panels make it look identical to the player, except for the black volume-control knob to the right of the front panel's four-color touchscreen, and the ¼" headphone jack at bottom left. Costing $3999, the M32 offers a continuous power output of >150W into 8 or 4 ohms. When I asked NAD for a sample of their Masters Series M50.2 digital music player, which I reviewed in the December 2017 issue, they also sent me a Masters Series M32 DirectDigital integrated amplifier, which had also been introduced at the 2017 Consumer Electronics Show.
