NAD Masters Series M32 DirectDigital D/A integrated amplifier Specifications

Sidebar 1: Specifications

Description: Remote-controlled, network-connected D/A integrated amplifier. Standard: Analog inputs: 2 pairs RCA (line), 1 pair RCA (phono). Digital input: USB Type B. Analog outputs: 1 pair unbalanced (RCA), 1¼" stereo headphone jack, 4 pairs speaker binding posts. Digital outputs: 1 TosLink, 1 coaxial S/PDIF. Optional modules included on review sample: MDC DD S/PDIF provides AES/EBU, 2 TosLink, 2 coaxial S/PDIF; MDC DD-BluOS provides Bluetooth, Ethernet, 2 USB Type A. Supported file formats: MP3, AAC, WMA, OGG, WMA-L, FLAC, ALAC, WAV, AIFF, MQA. Supported cloud services: Classics Online, Deezer, HDtracks, HighResAudio, Juke, KKBox, Microsoft Groove (with OneDrive), Murfie, Napster, Qobuz, Slacker Radio, Spotify, Tidal, WiMP. Maximum continuous output power: >150Wpc into 8 ohms (21.8dBW) and 4 ohms (18.8dBW). Clipping power: 165Wpc into 8 ohms (22.2dBW). IHF dynamic power: 190W into 8 ohms (22.8dBW), 380W into 4 ohms (22.8dBW), 440W into 2 ohms (20.4dBW). Maximum output current: >18A. Frequency response: 20Hz–96Hz, 0.5dB at 192kHz sample rate. Channel separation: >90dB (ref. 10kHz at 1/3 rated power into 4 ohms). Signal/noise: >95dB (A-weighted, ref. 1W), >124dB (A-weighted, ref. 150W). Damping factor: 800. THD: <0.005% (20Hz–20kHz, 500mW-rated power, with AES17 and AP passive 20kHz LP filters). Power consumption: 40W idle, <0.5W standby.
Finish: Silver & Black.
Dimensions: 17.125" (435mm) W by 5.25" (133mm) H by 15" (380mm) D. Weight: 21.6 lbs (9.8kg) net, 40.7 lbs (18.5kg) shipping.
Serial number of unit reviewed: H69M3201215; "Designed and engineered in Canada, custom manufactured to NAD specifications in China."
Price: $3999, including MDC DD S/PDIF module; MDC DD-BluOS module, $399; MDC DD-HDMI-1 module, $299. Approximate number of dealers: 100. Warranty: 3 years, parts & labor.
Manufacturer: NAD Electronics International, 633 Granite Court, Pickering, Ontario L1W 3K1, Canada. Tel: (905) 831-6555. Fax: (905) 831-6936. Web:

NAD Electronics International
633 Granite Court
Pickering, Ontario L1W 3K1
(905) 831-6555

Scintilla's picture

Reviewing your test results, John, it is hard to argue this is a better solution than using an M51/C510 paired with a good-quality conventional amplifier. Your tests of the M51 noise-floor revealed approximately 21 bits of resolution and pairing that with a high-current, low noise class A-A/B power amp with a high S/N ratio looks like a significantly better solution to me. All you gain here is some convenience with BluOS and maybe the potential for in-built 2-channel Dirac processing on an MDC board. Frankly, I'd rather have my Krell delivering the current than this class-D amplifier and I think NAD has objectively taken a step backwards with this product vs. the now-discontinued M51. Booo.

Long-time listener's picture

In answer to the above, I think it's likely that combining the $2000 M51 (or any other good DAC with a volume control) with, say, a $2000 amp, so as to roughly equal the price of the NAD M32, would likely equal or exceed its performance. I've used an old NAD power amp (C252), like the M32, rated at 150 watts, with the M51. The C252 cost $600 when I bought it. I found the highs with this combination to be slightly smoother and perhaps more detailed than the M32's, which have a tendency under some conditions to become a little harsh when you push the volume.

cundare's picture

There's an easy way to do this. Tell your head you're tapping in 12/8. The rhythm abruptly becomes obvious, like when a hidden Magic Eye 3D image snaps into place.

Long-time listener's picture