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.

FEATURES

• BluOS Streaming DAC Amplifier
• HybridDigital™ Purifi Eigentakt™ Amplifier Technology
• Continuous Power: 200W into 8/4 Ohms
• Dynamic Power: 300W into 8 Ohms, 550W into 4 Ohms
• 32-Bit/384kHz ESS Sabre DAC
• Dirac Live Room Correction
• Colour 7” TFT touch display
• 2 x MDC Slots for Future Expansion
• Wireless control with Apple AirPlay 2 and aptX HD Bluetooth Integration
• Comprehensive digital and analogue connectivity including MM/MC phono and HDMI eARC
• Wide variety of music services integrated and supported by BluOS, including Tidal, Amazon Music HD, Deezer, Qobuz, Spotify and TuneIn – the world’s music is available at your fingertips
• BluOS growing ecosystem of compatible brands that tightly integrate hardware and software for an exceptional user experience
• BluOS apps for iOS, Android, MacOS, Windows
• Seamless integration with leading smart home control systems including Crestron, Control4, RTI, URC, Elan, Lutron, iPort and others

TECHNICAL SPECS

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 SPECIFICATIONS

• 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: ±10dB at 10kHz Bass: ±10dB 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
• aptX HD 5.0
• 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 <0.5W
• Idle Power <40W

• DIMENSIONS AND WEIGHT
• Dimensions WxHxD:  435 x 133 x 396 mm (17 1/8 x 5 1/4 x 15 5/8”)
• Net Weight: 9.7kg (21.4lb)
• Shipping Weight: 18.4kg (40.6 lb)