NAD M33 V2

The stereo integrated amplifier combines second-generation Eigentakt™ Class D amplification, advanced digital-to-analogue conversion and the BluOS® streaming platform to precisely handle audio signals from both digital and analogue sources. It delivers 200 W per channel and provides dynamic power of up to 560 W into 4 ohms, ensuring stable control even with demanding loudspeakers. Its amplification architecture is designed to minimise distortion and noise while preserving the dynamic variations and fine details of recordings.

The digital conversion section is based on the ESS ES9039PRO DAC, complemented by a next-generation ADC architecture for handling analogue signals. MQA Labs FOQUS and QRONO technologies address signal timing accuracy during the conversion process, helping maintain coherence, spatial definition and natural musical reproduction.

The BluOS platform provides access to major music streaming services and allows the amplifier to be integrated into high-resolution multi-room systems through the BluOS Controller app. AirPlay 2, aptX HD Bluetooth and Roon compatibility are also available, offering flexible source management and listening options. The 7-inch touchscreen provides direct control over playback and system settings.

Connectivity includes balanced XLR inputs and outputs, an HDMI eARC input for integration with televisions and audiovisual systems, and two dedicated subwoofer outputs with adjustable crossovers. The phono stage supports MM and MC cartridges and incorporates accurate RIAA equalisation and an infrasonic filter. The M33 V2 can also be connected to a NAD M23 V2 power amplifier in bridged mode, delivering up to 700 W per channel into 8 ohms.

The Dirac Live room correction system, supplied with a Limited Bandwidth licence and calibration microphone, allows the room's acoustic characteristics to be addressed up to 500 Hz, improving tonal balance and playback accuracy. For more advanced low-frequency management, an optional Dirac Live Bass Control licence is available, enabling subwoofer integration with the main loudspeakers to be optimised.

Technical specifications:

• Rated output power: >200 W per channel into 8 ohms; >380 W per channel into 4 ohms
• Bridged output power: >700 W into 8 ohms
• IHF dynamic power: 280 W into 8 ohms; 560 W into 4 ohms
• Clipping power: >210 W into 8 ohms (0.1% THD at 1 kHz)
• Peak output current: ≥25 A (0.1 ohm, 1 ms)
• Total harmonic distortion (THD): <0.003% (20 Hz–20 kHz, 1 W to 200 W into 8 and 4 ohms)
• Amplifier signal-to-noise ratio: >98 dB (A-weighted, 1 W into 8 ohms); >120 dB (A-weighted, 200 W into 8 ohms)
• Damping factor: >800 (8 ohms, 20 Hz–6.5 kHz)
• Frequency response: 20 Hz–20 kHz (±0.2 dB)
• Amplifier input sensitivity: 1.5 V (200 W into 8 ohms, volume at maximum)
• Preamplifier input impedance: 53 kohms / 280 pF
• Line input sensitivity: 460 mV (500 mV output, volume at maximum)
• Balanced input sensitivity: 250 mV (500 mV output, volume at maximum)
• Maximum preamplifier input level: 3.5 Vrms
• Tone controls: Treble ±6 dB at 15 kHz; bass ±6 dB at 40 Hz
• Maximum preamplifier output level: 3.6 Vrms unbalanced; 7.6 Vrms balanced (0.1% THD)
• Preamplifier signal-to-noise ratio: >120 dB (A-weighted, 2 V output)
• Preamplifier output impedance: Source impedance + 49.9 ohms
• Phono input sensitivity: 5 mV MM; 370 µV MC
• Phono input impedance: MM 25.6 kohms / 180 pF; MC 100 ohms / 280 pF
• Phono signal-to-noise ratio: MM >93 dB; MC >73 dB (A-weighted, 500 mV output)
• Phono total harmonic distortion plus noise (THD+N): MM <0.003%; MC <0.03% (500 mV output at 1 kHz)
• RIAA response accuracy: 20 Hz–20 kHz (±0.2 dB)
• Phono infrasonic filter: Included
• Maximum phono output level: 3 Vrms (0.1% THD at 100 Hz)
• Preamplified output signal-to-noise ratio: >88 dB (20 Hz–20 kHz, 1 V output)
• Total harmonic distortion plus noise (THD+N): <0.005% (20 Hz–200 Hz, 3 V output)
• Output impedance: Source impedance + 220 ohms; source impedance + 3.3 ohms
• Headphone output power: >300 mW into 32 ohms
• DAC: ESS ES9039PRO
• Analogue-to-digital converter (ADC): Next-generation architecture
• Signal processing technologies: MQA, FOQUS and QRONO
• BluOS supported audio formats: MP3, AAC, WMA, OGG, WMA-L, ALAC, OPUS
• High-resolution audio formats: FLAC, MQA, WAV, AIFF
• Maximum sampling rate: 192 kHz
• Bit depth: 16–24 bit
• Network connectivity: Gigabit Ethernet RJ45; Wi-Fi 5
• USB port: 1 × USB-A for FAT32 or NTFS USB storage devices and supported peripherals
• Bluetooth: Bluetooth 5.0 aptX HD; two-way operation for receiving and headphone modes
• Music streaming: BluOS multi-room; AirPlay 2; Roon; support for major online music services
• Voice control: Compatible with Amazon Alexa and Apple Siri through supported devices and applications
• Room correction: Dirac Live Limited Bandwidth up to 500 Hz, including licence and calibration microphone
• Bass correction: Compatible with Dirac Live Bass Control via optional licence
• Subwoofer outputs: 2 dedicated outputs with adjustable crossovers
• Audio connectivity: Balanced XLR inputs and outputs; HDMI eARC
• Phono input: Compatible with MM and MC cartridges
• Display: 7-inch full-colour touchscreen
• Remote control: SRM 1
• Control application: BluOS Controller for iOS, Android, Windows and macOS devices
• Home automation compatibility: Control4, Crestron, ELAN, Lutron, Push, RTI, URC
• Operating system compatibility: Windows 10 or later; macOS 10.3 or later for playback from network shares
• Dimensions (W × H × D): 435 × 133 × 396 mm
• Weight: 9.7 kg