NAD Electronics M33 Integrated Amplifier with BluOS Streaming DAC

$4,999.00 OR

Regular Price: $5,999.00

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Model: M33 UPC: 786357001395 Item: 174989

Product Information

The Bar has been Raised with the Masters M33 BluOS Streaming DAC Amplifier

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.


  • BluOS Streaming DAC Amplifier
  • HybridDigital Purifi Eigentact™ Amplifier Technology
  • Continuous Power: 200W into 8/4 Ohms
  • 32-BIT/384kHz ESS Sabre DAC
  • Dirac Live Room Correction
  • Colour TFT touch display
  • BluOS multi-room Integration
  • 2 x MDC Slots for Future Expansion
  • Wireless control with AirPlay 2 and aptX HD Bluetooth Integration
  • Comprehensive digital and analog connectivity including HDMI eARC
  • Integrates seamlessly with leading smart home control systems
  • MDC (Modular Design Construction) offers the ability to upgrade to future digital formats as they become available. Two MDC slots provided.
  • CI friendly- RS232 Serial Control Port. Trigger In/Out.
  • IR In with learning function

Builds On Remarkable Success with Advanced Features, Cutting-Edge Technology and High Power

Part of a growing ecosystem of compatible products, BluOS tightly integrates hardware and software for an exceptional user experience. The only true wireless High-Resolution multi-room system available today, BluOS supports the new standard for High Res streaming, Master Quality Authenticated (MQA). BluOS also supports over 20 free and paid subscription services as well as supporting locally stored music libraries. With BluOS, the M33 retains all the audiophile features and further adds a range of facilities that will expand its capabilities yet simplifies ease-of-use at the same time. Operable with the BluOS app, the supplied remote control or through hands-free control with any Amazon Alexa or Google Assistant device, the M33’s front panel never needs to be touched.

DIRAC Live Room Correction On Board

Experts agree that room acoustics are the weakest link in most sound systems with room reflections deteriorating tonal balance and dynamics. Dirac, one of the most highly regarded Room Correction systems available, not only adjusts for frequency response but unlike other room correction systems, it also optimizes the impulse response. By optimizing the speaker/room interface, music sounds more natural and lifelike. Supplied with the M33 is a precision microphone to measure the room at and around the listening position so your system can be precisely calibrated for optimum performance. Even the most sophisticated loudspeakers can be markedly improved using Dirac calibration. Each of the 5 Dirac memory slots can store a unique room measurement or different frequency target curves to suit a particular musical taste or genre. The M33 also supports Dirac’s advanced ‘Bass Management’ feature with two independent subwoofer outputs.

Flexibility Meets Long-Term Value

In its standard form, the M33 is very complete with a wide range of in/outputs, BluOS, Dirac, HDMI and more already fully integrated. It will meet the requirements of the most demanding users. To minimize the risk of future obsolescence, the M33 comes with two MDC (Modular Design Construction) slots that allow for further expansion. NAD introduced the MDC platform well over a decade ago and allowed updating products with new technologies which didn’t even exist at time of introduction

Connection and Wireless Flexibility

Whether looking to connect digital or analog sources, the M33 comes well equipped to accommodate for all of these: 6 digital inputs and 3 analog inputs, including MM phono. Around back, 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 from a phone or tablet.

Phono and Headphones Are Not Forgotten

The M33 has a high-quality MM Phono Input that rivals specialized outboard units. Accurate RIAA equalization, a clever phase canceling infrasonic filter, and a huge overload margin combine to bring out the best in LPs. Furthermore, 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 possible to enjoy wireless headphones. too.

Attractive Design With Outstanding Ergonomics

The all-alloy casework is elegant yet practical. The 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. The M33 employs a completely modern and fresh take on the traditional stereo amplifier, with features and performance from the future.

Smart Home Integration Made Easy

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. 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. All integrations are certified for reliable operation. The custom BluOS Apps for iOS and Android tablets and phones, as well as desktop control from Windows and Apple OS are available free-of-charge and are updated regularly.



  • Continuous output power: >200W (ref. 20 Hz-20 kHz at rated THD, both channels driven)
  • THD (20 Hz – 20 kHz): <0.002 % (250 mW to 200 W, 8 ohms and 4 ohms)
  • Signal-to-Noise Ratio:
    • >100 dB (A-weighted,  ref. 1 W out in 8 ohms)
    • >125 dB (A-weighted,  ref. 200 W out in 8 ohms)
  • Clipping power 8 Ohms: >210 W (at 1 kHz 0.1 % THD)
  • IHF dynamic power: 8 ohms: 300 W, 4 ohms: 550 W
  • Damping factor: >800 (ref. 8 ohms, 20Hz to 6.5kHz)
  • Frequency response: 20 Hz – 60 kHz ±3 dB
  • Input Impedance (r and c): 47kΩ/180pF
  • Input Sensitivity: 280mV (ref. 500mV out, Volume Maximum)
  • Input Max Input Signal: 2Vrms (at 1 kHz)
  • Tone Controls: Treble: ±10dB at 10kHz Bass: ±10dB at 100Hz
  • Max Output Signal: 4Vrms (ref. 0.1% THD)
  • Preout Signal/Noise ratio: 108dB (ref 500mV out)
  • Output Impedance: 100Ohms
  • Input Sensitivity: MM: 1.2mV MC: 500 uV
  • Input Impedance (R and C): MM: 56KΩ /100pF MC: 100Ω /120pF
  • Dimensions WxHxD: 17 1/8" x 5 1/4" x 15 5/8”
  • Weight: 9.7kg (21.4lb)



What's in the Box

What's in the Box

  • M33 Streaming Integrated Amplifier
  • Power Cord
  • Warranty
  • Setup Instructions


We'd love to hear your thoughts! Please leave a review.

Customer Reviews for NAD Electronics M33 Integrated Amplifier with BluOS Streaming DAC

4.5 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 4 out of 5
Two-month review
So far so good. I'm powering KEF ls50metas. I also have a REl t9i sub. Sound is great and the system is easy to use. I've tried Spotify and Tidal and both work well.

Now here is the bad. I took a star off because my remote seems to be busted. It takes me at least two presses of the volume, up or down, to actually change the volume. It's pretty frustrating and feels like a problem from the '80s. Seriously, I'll probably reach out to NAD for a replacement. Feelsbadman.
April 23, 2021
Rated 5 out of 5
Absolutely Terrific In All Areas Except One
Pros: The NAD M33 is a pretty amazing piece of audio gear. The amplifier section is open, airy and clean from top to bottom. The streaming section, using BluOS supplies an enormous range of sources and they all work as they should. There are 12 inputs selectable from the front touch-panel that cover just about any analog or digital input imaginable (except for a USB-B input). The Dirac room correction is very useful but NAD/Dirac don't do a very good job explaining the relationship between what is hardwired into the M33 and the software needed to run it (Dirac Live vs. Dirac Full-Range).

Cons: The IR remote supplied with the M33 is massive (44 buttons), but it only controls a limited subset of function on the M33. For example, it does not allow you to select some of the 12 inputs (e.g. HDMI ARC). Also, the IR codes for the M33 are not available at the Logitech site, so if you want to control the M33 from a master remote that also handles other input/output devices (e.g. a disk player) you are out of luck. (Personal example: I run my Oppo-205 through my TV and from the TV to the HDMI ARC input on the M33. I can turn the TV, Oppo and the M33 on/off with a Logitech remote, but I cannot select the HDMI ARC input on the M33 for audio from the TV. The only way to select the HDMI ARC input is by using the touch-panel or from BluOS running on a computer/phone/tablet.)

Summary: Absolutely worth the money but plan for a few growing pains as NAD works out the kinks in their latest integrated amp.
This review was collected as part of a promotion
September 21, 2020
over 3 years ago


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