Nad M33

In its simplest form, the M33 BluOS™ enabled DAC/amplifier is an ultra-high-performance streaming amplifier with superb audiophile sound. As a BluOS enabled component, the M33 can be combined with other players in a BluOS ecosystem of wirelessly networked music players throughout the home for an outstanding whole-home audio system. With the employment of the new Purifi Eigentakt™ Hybrid Digital amplifier technology, the M33 follows NAD’s long-standing tradition in identifying and 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.

Specifications

Amplifier Section

• Rated output power (ref. 20 Hz-20 kHz at rated THD, both channels driven):
  >200 W into 8 ohms >380 W into 4 ohms
• Rated output power, 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 (0.1 % THD 1 kHz 8 ohms)
• IHF dynamic power:
  8 ohms: 260 W
  4 ohms: 520 W
• Peak output current: ≥25 A (in 1 ohm, 1 ms)
• Damping factor: >800 (ref. 8 ohms, 20 Hz to 6.5 kHz)
• Frequency response:
  ±0.2 dB (20 Hz -20 kHz)
  -3 dB at 60 kHz

Preamplifier Section

Line In

• Input Impedance (r and c): 47kΩ/180pF
• Input Sensitivity: 280mV (ref. 500mV out, Volume Maximum)
• Maximum input level 20Hz-20Khz: 2 Vrms/8 Vrms (low sensitivity mode)
• Tone Controls: Treble: ±6 dB at 10kHz Bass: ±6 dB at 100Hz
• Max Output Signal: 4Vrms (ref. 0.1% THD)

Preout

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

Subout

• Maximum output level: 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

Phono

• 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

Headphones

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

BluOS Section

Audio

• 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

Connectivity

• 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: Support for aptX® HD
• Bluetooth connectivity: Two-Way (Receive and Headphone modes)

User Interface

• Supported operating system:
  Music playback from network shares on the following desktop operating systems: Microsoft Windows XP, 2000, Vista, 7, 8 to current Windows Operating Systems and macOS versions
• Mobile Application:
  Free BluOS Controller App available for download from the respective App stores of Apple iOS devices (iPad, iPhone and iPod), Android devices, Kindle Fire and Windows or macOS desktops
• Front panel: 7-inch full colour touch screen
• Remote control: HTRM 2 remote control

Power Consumption

• Auto Standby ON:L <0.5W
• Idle Power: <40W