NAD M33 BluOS Streamng DAC Amplifier

Pin It

The M33, a BluOS™ enabled DAC/amplifier that can serve as the heart of a reference whole-home system. Or it can be combined with other players in a BluOS ecosystem of wirelessly networked music players throughout the home for an outstanding whole-home system.

With the employment of the new Purifi Eigentakt™ (self-clocking) Hybrid Digital amplifier technology, the M33 follows NAD’s tradition in developing cutting-edge amplification technology. With a minimum of 200W per channel on tap, the result is lifelike performance, exemplified by ultra-low distortion and noise. It fully caters to the modern world where the majority of music is delivered over the internet.

BluOS supports High Res streaming, Master Quality Authenticated (MQA) and over 20 free and paid subscription services and locally stored music libraries. Operable with the BluOS app, supplied remote control or through hands-free control with any Amazon Alexa or Google Assistant device, the M33’s front panel doesn’t actually need to be touched.

Dirac adjusts for frequency response but unlike other room correction systems, it also optimizes the impulse response. Dirac comes as standard on the M33 with corrections possible up to 500Hz. Supplied with the M33 is a precision microphone to measure the room at and around the listening position so your system can be calibrated for optimum performance. Each of the 5 Dirac memory profiles can store a unique room measurement (think different acoustics with curtains open or closed, different listening position), or to suit a particular musical taste or genre.

The M33 is very complete with a wide range of in/outputs, BluOS, Dirac, HDMI eARC and more already fully integrated. To minimize the risk of future obsolescence, the M33 comes with two MDC slots that allow for further expansion.

Another feature of BluOS is its multi-room and high-res streaming capabilities with full MQA decoding support from a local NAS or shared drive, but also from internet streaming audio services such as Tidal, Deezer, Qobuz and more. Music services such as Spotify, Amazon Music, Slacker, TuneIn, are also supported.

The M33 comes well equipped: 5 digital inputs and 3 analog inputs, including XLR Balanced, MM and MC phono. The rear panel hosts two sets of speaker outputs capable of bi-wiring and a stereo Subwoofer Output with a fully configurable Digital Crossover. Airplay 2 and Bluetooth AptX-HD allow for local wireless streaming.

The M33 has a high-quality MM/MC Phono Input that rivals outboard units. Accurate RIAA equalization, a clever phase cancelling infrasonic filter and a huge overload margin combine to bring out the best in LPs. Headphone enthusiasts will delight at the sound of the discrete headphone amplifier, which is able to drive even planar and high impedance studio phones. With high voltage and low output impedance, headphones will sound their best. For those who wish to enjoy their headphones but not be tethered to a cable, the integrated Bluetooth AptX-HD module makes it simple to enjoy wireless headphones, too.

The all-alloy casework and a single control knob for volume is supplemented by a color TFT touchscreen display. Rigid panels with magnetic iso-point feet provide a solid foundation for the multi-layer circuit boards and intricate internal construction.

BluOS provides hands-free control with full integration of any Amazon Alexa or Google Assistant device. Through Airplay 2, control is also possible with Siri. Considerable effort has been spent to make the M33 fully compatible with all the leading smart home systems from leading companies like Apple, Crestron, Control4, Lutron, KNX and many others. The M33 is also compatible with the Roon music platform.* This means that along with lighting, shades, HVAC, and security, the integrator or user can seamlessly control the BluOS multi-room music system from a common interface.

  • BluOS Streaming DAC Amplifier
  • HybridDigital™ Purifi Eigentact™ Amplifier Technology
  • 200W into 8/4 Ohms
  • 32-BIT/384kHz ESS Sabre DAC
  • Dirac Live Room Correction
  • Color TFT touch display
  • Multi-room Integration
  • 2 x MDC Slots for Future Expansion
  • Wireless control with AirPlay 2 and aptX HD Bluetooth
  • Digital/analog connectivity including HDMI eARC
  • Integrates with leading smart home systems
    • Rated output (ref. 20 Hz-20 kHz at rated THD, both channels driven): >200 W into 8 ohms >380 W into 4 ohms
    • Rated output, Bridge mode (ref. 20 Hz – 20 kHz at rated THD): >700 W into 8 ohms
    • Input sensitivity: 865 mV (ref. 200W 8 ohms, Volume maximum)
    • THD (20 Hz – 20 kHz): <0.003 % (1W to 200 W, 8 ohms and 4 ohms)
    • Signal-to-Noise ratio:
      • >98 dB (A-weighted, ref. 1 W out in 8 ohms)
      • >120 dB (A-weighted, ref. 200 W out in 8 ohms)
    • Clipping power: >210 W
    • IHF dynamic power: 
      • 8 ohms: 260 W
      • 4 ohms: 520 W
    • Peak output: ≥25 A
    • Damping factor: >800
    • Frequency response: 
      • ±0.2 dB (20 Hz -20 kHz)
      • -3 dB at 60 kHz
                                    PREAMPLIFIER SPECIFICATIONS

                                    LINE IN

                                    • Input Impedance (r and c): 47kΩ/180pF
                                    • Input Sensitivity: 280mV
                                    • Maximum input 20Hz-20Khz: 2 Vrms/8 Vrms
                                    • Tone Controls: Treble: ±10dB at 10kHz Bass: ±10dB at 100Hz
                                    • Max Output: 4Vrms (ref. 0.1% THD)


                                    • Maximum output: 3.9 Vrms (ref. 0.1% THD)
                                    • Signal-to-Noise ratio: >120 dB (A-weighted, ref. 2 V out)
                                    • Output impedance: 100 ohms


                                    • Maximum output: 1.1 Vrms (ref. 0.1 % THD 100Hz)
                                    • Signal-to-Noise ratio: >102 dB (20 Hz-20 kHz, ref. 1V out)
                                    • THD+N: <0.005 % (refer 1.1 V 20 Hz-200 Hz)
                                    • Output impedance: 680 ohms


                                    • Input sensitivity:
                                      • MM: 1.2 mV
                                      • MC: 100 µV
                                    • Input impedance (R and C)
                                      • MM: 56 kohms/100 pF
                                      • MC: 100 ohms/280 pF
                                    • Signal to noise ratio (ref. 2 V Preout A-weighted):
                                      • MM: >92 dB
                                      • MC: >76 dB
                                    • THD+N (ref 2V Preout 1kHz):
                                      • MM: <0.003 %
                                      • MC: <0.02 %
                                    • RIAA response accuracy MM/MC: ±0.2 dB 20 Hz -20 kHz


                                    • Output Impedance: 2.2ohms
                                    • Output power: >100 mW/32 ohms
                                    BLUOS SECTION


                                    • Supported audio file format*: MP3, AAC, WMA, OGG, WMA-L, ALAC, OPUS
                                    • Supported high- resolution audio file format*: FLAC, MQA, WAV, AIFF
                                    • Sampling rate: up to 192 kHz
                                    • Bit depths: 16 – 24


                                    • Network connectivity
                                      • Gigabit Ethernet RJ45
                                      • Wi-Fi 5
                                    • Supported network file share protocol: Server Message Block (SMB)
                                    • USB: 1 x Type-A port for connection to USB memory stick (FAT32 or NTFS formatted) and supported peripherals
                                    • Bluetooth quality: aptX HD 5.0
                                    • Bluetooth connectivity: Two-Way


                                    • Supported operating system: Music playback from network shares on desktop operating systems: Microsoft Windows XP, 2000, Vista, 7, 8 to current Windows OS and macOS versions
                                    • Mobile Application: Free BluOS Controller App available for download from the App stores of Apple iOS devices, Android devices, Kindle Fire and Windows or macOS desktops
                                    • Front panel: 7-inch full color touch screen
                                    POWER CONSUMPTION
                                    • Auto Standby ON: <0.5W
                                    • Idle Power: <40W
                                    DIMENSIONS AND WEIGHT
                                    • Dimensions WxHxD: 17 1/8 x 5 1/4 x 15 5/8”
                                    • Net Weight: 21.4lb
                                    • Shipping Weight: 40.6 lb

                                    Related Items