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What You Need to Know
What is the M33 V2, and what does it do?
The NAD M33 V2 is a Masters Series streaming integrated amplifier — an all-in-one component that combines a preamplifier, a digital-to-analog converter, a hi-res music streamer, an MM/MC phono stage, a high-current headphone amplifier, room correction, and a 200-watt-per-channel power amplifier in a single chassis.
This is the V2 — the second generation of NAD's flagship streaming amplifier. The original M33 launched in 2020 and quickly earned a Stereophile Recommended Component listing along with awards from What Hi-Fi?, Sound & Vision, AVForums, and Future Audiophile. The V2 launched at High End Munich in May 2025, building on that legacy with second-generation Purifi Eigentakt amplification, an upgraded ESS Sabre ES9039PRO DAC, a next-generation ESS ADC, and timing-focused technologies from MQA Labs.
The M33 V2 sits at the top of NAD's integrated amplifier lineup. To complete a system, add speakers. That's it. The M33 V2 already includes everything else — and where it stops short, two MDC2 expansion slots let you add capability later.
Masters-Tier Everything in One Box — Why the M33 V2 Exists
The M33 V2 takes NAD's design philosophy to its furthest reach: combine reference-grade engineering across every stage of the audio path — amplifier, DAC, ADC, phono, streamer, room correction — and deliver them in one box. NAD's brief is rooted in modern neuroscience: humans can perceive timing differences between sounds down to seven microseconds. The V2's psychoacoustically tuned signal path, MQA Labs FOQUS technology, and upgraded ESS conversion target that timing precision.
Why does it matter? How does it improve your listening?
The headline number is 200 watts per channel continuous into both 8 ohms and 4 ohms — conservatively rated, with dynamic peaks to 300 W into 8 Ω and 550 W into 4 Ω. That's flagship-tier headroom for any speaker in NAD's recommended pairings.
The ESS Sabre ES9039PRO is ESS Technology's current top-tier DAC chip — a meaningful step up from the ES9028 used in NAD's earlier Masters Series amps and the Classic Series C 389 / C 399. It supports hi-res playback well beyond what current streaming services deliver, with very low measured noise and very high linearity.
Dirac Live Limited Bandwidth comes pre-loaded with the included calibration microphone. Dirac Live corrects timing and frequency response problems caused by your room's acoustics — standing waves, reflections, bass null points. The M33 V2 also supports the optional Dirac Live Bass Control license, which adds dual-subwoofer integration with independent calibration of each sub for the smoothest possible low end.
For listeners building a serious system: the M33 V2 can be bridged with a second NAD M23 V2 power amplifier for 700 W per channel mono — a configuration that handles the most demanding speakers and largest rooms without breaking a sweat.
What's different about how it's built?
The amplifier section uses second-generation Purifi Eigentakt modules — the latest Class D modules from Bruno Putzeys' team at Purifi Audio, manufactured by NAD under license. Eigentakt's distinguishing trait is load-invariance: frequency response stays flat regardless of speaker load. The second-generation modules further reduce distortion and improve linearity compared with the original M33.
The DAC is the ESS Sabre ES9039PRO — a 32-bit, 8-channel DAC chip running in stereo mode. ESS designed it specifically for high-end audio applications, with proprietary technologies for noise shaping and clock jitter rejection. The M33 V2 pairs it with a next-generation ESS ADC for analog source conversion — a step many flagship amplifiers skip but that matters when running a turntable into a digital signal path with room correction.
NAD applies two MQA Labs technologies to the timing-critical parts of the signal chain: FOQUS (deblurs analog filters in the converters) and QRONO (improves timing precision in PCM conversion). These work with the upgraded ESS DAC and ADC to reduce time smear — the small timing errors that blur transient detail and spatial cues.
The MM/MC phono stage is rated to compete with stand-alone units: SNR over 92 dB on MM and over 76 dB on MC, with THD+N below 0.003% on MM. An infrasonic filter suppresses subsonic noise from records without compromising bass response. RIAA equalization accuracy is ±0.2 dB across the audio band.
Two MDC2 expansion slots on the back let the M33 V2 evolve with new technologies — MDC2's two-way architecture means future modules can integrate cleanly with the rest of the signal path. The aluminum chassis with magnetic iso-point feet completes the build.
Who is this best for?
You want a single-box, no-compromises system that handles streaming, room correction, phono, headphones, and 200-watt amplification — without buying separates.
You stream music as your main source — Tidal, Qobuz, Amazon Music HD, Spotify, Apple AirPlay, internet radio — and want hi-res audio with Roon endpoint support.
You want Dirac Live applied to every source — streams, optical, coaxial, HDMI, analog — with the option to add full-frequency Dirac Live Bass Control for dual-subwoofer integration.
You play vinyl seriously and want a built-in MM/MC phono stage that performs at the level of a stand-alone unit.
You watch a lot of TV through your stereo and want HDMI eARC so the TV remote controls volume.
You may want to scale up later — bridging the M33 V2 with a second M23 V2 in bridged mode creates a 700 W per channel system.
You're integrating into a custom smart home — Control4, Crestron, Lutron, KNX, RTI, URC, iPort, Josh.ai, and Nice integration are all certified.
How does it connect to your system?
Analog inputs: MM/MC phono (RCA), one balanced XLR line input, one AES/EBU XLR digital input, plus line-level RCA inputs.
Digital inputs: two optical (Toslink), two coaxial S/PDIF, HDMI eARC for the TV, USB Type A for thumb drives or external storage, AES/EBU XLR for high-end transports.
Streaming and wireless: Gigabit Ethernet, dual-band Wi-Fi 5, two-way aptX HD Bluetooth, AirPlay 2, Spotify Connect, Tidal Connect, Qobuz Connect, Roon Ready, BluOS multi-room (up to 64 zones).
Preamp outputs: balanced XLR stereo pair and stereo RCA — let you bypass the internal power amp and run the M33 V2 as a streaming preamp into a separate power amplifier. Two subwoofer outputs (RCA) with selectable crossover frequency support 2.1 or 2.2 configurations; with Dirac Live Bass Control, the subs are independently calibrated.
For speakers: one pair of binding posts that accept bare wire, banana plugs, or spades. A dedicated high-current headphone amplifier with 2.2 Ω output impedance drives demanding planar-magnetic and low-impedance studio headphones.
Control: IR input, 12V trigger input plus two 12V trigger outputs for system sequencing. Apps for iOS, Android, Windows, and macOS. Voice control via Amazon Alexa, Google Assistant, and Apple Siri (through AirPlay 2).
Need help building a system around the M33 V2? Call us at 800-942-0220.
Professional Reviews
Ed Selly, AVForums, February 24, 2026
AVForums published the first major V2-specific review of the M33 V2. Ed Selly framed the V2 as a considered revision rather than a wholesale change — and on balance, that was the right call, given how strong the original was. The Class D weight reduction got attention, as did the seamless transition from music listening to TV audio via HDMI eARC. The publication's overall verdict: a true bargain at its price, capable of outperforming amps at much higher prices, with streamer, DAC, preamp, and Dirac included.
Sound-Advice.online, February 12, 2026
Sound-Advice.online's V2 review framed the M33 V2 as a tremendously clever device — but praised it most for never letting you sit admiring the cleverness, only the music. The publication highlighted the Eigentakt modules as the best Class D NAD currently offers, calling out the combination of self-oscillating Class D technology with novel feedback algorithms that eliminate harmonic and intermodulation distortion.
Dutchiee.tv, January 30, 2026
Dutchiee.tv reviewed the M33 V2 as a masterful "do-it-all" streaming amplifier — succeeding the original 2020 model with advanced circuitry and refined audio features. The reviewer credited the ESS Sabre-based DAC and advanced ADC combination for pure, distortion-free playback, and singled out the new FOQUS and QRONO technologies from MQA Labs as updates that reflect how humans actually perceive sound.
Pairs Well With
Building your system around the M33 V2? Here are some great companions.
- Floorstanding speakers — The M33 V2 has the power and refinement for high-end floorstanders in medium-to-large rooms. Browse our floorstanding speakers.
- Demanding bookshelf speakers — Strong dynamic headroom and stability into low-impedance loads make the M33 V2 a good fit for current-hungry monitors. See our bookshelf speakers.
- A NAD M23 V2 Power Amplifier for bridged-mono operation — Bridge the M33 V2 with an M23 V2 for 700 W per channel — flagship Masters Series performance at the highest power level NAD offers in stereo.
- A turntable — The M33 V2's MM/MC phono stage matches the level of stand-alone phono units. Browse our turntables.
- Two subwoofers — Dual sub outs with selectable crossover let you run two subs; with Dirac Live Bass Control, each is independently calibrated for the smoothest possible low end. Browse our subwoofers.
- Reference headphones — The high-current headphone amp drives planar-magnetic and low-impedance studio designs with authority. See headphones.
- Premium speaker cables and interconnects — At this performance level, cable runs deserve attention. See speaker cables, RCA interconnects, and XLR interconnects.
- A power conditioner — Clean AC at the wall preserves the M33 V2's low-noise performance. Browse our power conditioners.
Features & Specifications
Second-Generation Purifi Eigentakt Amplification — 200 W Per Channel
NAD's implementation of the latest Eigentakt Class D modules from Purifi Audio. Continuous output is 200 W per channel into both 8 ohms and 4 ohms, with dynamic peaks to 300 W into 8 Ω and 550 W into 4 Ω. Eigentakt's load-invariant frequency response keeps the amplifier composed across any speaker.
ESS Sabre ES9039PRO DAC + Next-Generation ESS ADC
The M33 V2 uses ESS Technology's current flagship DAC chip — the ES9039PRO — paired with a next-generation ESS ADC for analog source conversion. The result is clean, low-noise conversion across all inputs, with timing precision NAD engineers specifically for psychoacoustic accuracy.
MQA Labs FOQUS and QRONO Timing Technologies
Two signal-processing technologies licensed from MQA Labs work alongside the ESS DAC and ADC to reduce time smear — the small timing errors that blur transient detail and spatial cues. NAD frames this as bringing the listener closer to the original recording.
Dirac Live Limited Bandwidth Pre-Loaded — Bass Control Optional
Dirac Live Limited Bandwidth license (room correction up to 500 Hz) comes pre-loaded with the included calibration microphone. The M33 V2 also supports the optional Dirac Live Bass Control license — independently calibrates two subwoofers for the smoothest possible low end. Five customizable Dirac memory profiles let you save configurations for different rooms or seating positions.
BluOS Streaming Built In — Hi-Res Multi-Room
BluOS hi-res streaming runs natively on the M33 V2: Tidal, Qobuz, Amazon Music HD, Spotify, Apple AirPlay 2, Spotify Connect, Tidal Connect, Qobuz Connect (added September 2025), internet radio, and 20+ other services. Up to 64 BluOS zones for whole-home multi-room. MQA decoding and rendering for hi-res streaming.
7-Inch Color Touchscreen Display
A bright color LCD touchscreen handles source selection, volume, settings, and BluOS browsing right from the front panel — no smartphone required.
HDMI eARC for TV Audio
HDMI eARC connects the M33 V2 directly to your TV with a single cable. Once configured, the TV remote controls volume on the M33 V2 — so casual TV listening doesn't need a separate remote.
Reference-Tier MM/MC Phono Stage
Built-in MM/MC phono input with accurate RIAA equalization (±0.2 dB), high overload margin, and an infrasonic filter that suppresses subsonic noise without compromising bass response. SNR >92 dB MM, >76 dB MC. Performance NAD specifies at the level of stand-alone phono units.
High-Current Headphone Amplifier
A discrete, high-current headphone amplifier with 2.2 Ω output impedance and over 100 mW into 32 Ω drives demanding planar-magnetic and low-impedance studio designs with authority.
Dual MDC2 Expansion Slots
Two MDC2 expansion slots on the back let the M33 V2 evolve as new technologies arrive. MDC2's two-way architecture means future modules integrate cleanly with the rest of the signal path.
Bridgeable with M23 V2 for 700 W Per Channel
Pair the M33 V2 with a NAD M23 V2 stereo power amplifier in bridged-mono mode to create a 700 W per channel system — flagship Masters Series output for the most demanding speakers and largest rooms.
Smart Home Integration
Voice control via Amazon Alexa, Google Assistant, and Apple Siri (through AirPlay 2). Certified for Control4, Crestron, iPort, Josh.ai, KNX, Lutron, Nice, RTI, and URC integration. IR input, 12V trigger input, and two 12V trigger outputs for system sequencing.
Masters Series Build Quality
Beautifully machined aluminum chassis with magnetic iso-point feet. Free apps for iOS, Android, Windows, and macOS with regular firmware updates.
Quick-Reference Specifications
| Amplifier Performance | |
| Amplifier Class | HybridDigital Purifi Eigentakt (Class D, second-generation modules) |
| Continuous Power Output | 200 W into 8 Ω and 4 Ω (both channels driven) |
| Dynamic Power | 300 W into 8 Ω; 550 W into 4 Ω |
| Bridge Mode | Bridgeable with NAD M23 V2 for 700 W per channel |
| DAC, ADC & Digital | |
| DAC | ESS Sabre ES9039PRO (32-bit) |
| ADC | Next-generation ESS |
| Signal Processing | MQA Labs FOQUS and QRONO timing technologies |
| MM/MC Phono Stage | |
| SNR (A-weighted, ref. 2 V preout) | >92 dB MM; >76 dB MC |
| THD+N (ref. 2 V preout, 1 kHz) | <0.003% MM; <0.02% MC |
| RIAA Accuracy | ±0.2 dB (20 Hz – 20 kHz) |
| Headphone Amplifier | |
| Output Power | >100 mW into 32 Ω |
| Output Impedance | 2.2 Ω |
| Streaming & Connectivity | |
| Third-Party Integrations | BluOS, AirPlay 2, Spotify Connect, Tidal Connect, Qobuz Connect, Roon Ready, Alexa, Siri, Google Assistant |
| Network | Gigabit Ethernet, dual-band Wi-Fi 5 (a/c/n) |
| Bluetooth | Two-way aptX HD |
| Multi-Room | Up to 64 BluOS zones |
| Room Correction | Dirac Live Limited Bandwidth (up to 500 Hz) included; calibration microphone in box; Dirac Live Bass Control license available separately |
| Inputs / Outputs | |
| Analog Inputs | Line-level RCA, balanced XLR line, MM/MC phono (RCA) |
| Digital Inputs | HDMI eARC, AES/EBU XLR, 2 × optical (Toslink), 2 × coaxial S/PDIF, USB Type A |
| Preamp Outputs | Balanced XLR stereo pair, stereo RCA |
| Subwoofer Outputs | 2 × RCA with selectable crossover frequency |
| Speaker Outputs | 1 × stereo pair binding posts |
| Expansion | 2 × MDC2 slots |
| Control | IR input, 12V trigger in, 2 × 12V trigger out; drivers for Control4, Crestron, Lutron, KNX, RTI, URC, iPort, Josh.ai, Nice |
| Physical & Display | |
| Display | 7-inch color LCD touchscreen |
| Chassis | Machined aluminum with magnetic iso-point feet |
| Warranty | 2 years, parts and labor |
Frequently Asked Questions
What else do I need to use the M33 V2?
Just speakers, speaker cables, and Wi-Fi or Ethernet. The M33 V2 includes the streamer, DAC, ADC, MM/MC phono, headphone amp, Dirac Live room correction, and 200-watt power amp. Plug in your speakers, network, and any sources, and you're playing music.
Is the M33 V2 a good match for my speakers?
The M33 V2 delivers 200 W per channel continuous (300 W dynamic into 8 Ω, 550 W into 4 Ω) using load-invariant Eigentakt amplification. That suits a very wide range of demanding speakers in medium-to-large rooms. The right pairing depends on your specific speakers and listening tastes. Call us at 800-942-0220 and we'll help you dial it in.
What are the differences between Class A, Class A/B, and Class D amplifiers? Which one is this?
The M33 V2 uses HybridDigital Purifi Eigentakt — a second-generation Class D design. Class A runs the output transistors fully on (clean, but hot and inefficient). Class A/B blends both modes — the traditional analog approach, common in many expensive amps.
Class D switches the output transistors rapidly. The benefit is very high efficiency and very low heat. Eigentakt is a modern Class D module from Bruno Putzeys' team at Purifi Audio, known for measurable performance at or beyond the best Class A/B designs.
What's different about the V2 versus the original M33?
The V2 brings second-generation Purifi Eigentakt modules (further reduced distortion compared with the original M33), an upgraded ESS Sabre ES9039PRO DAC (replacing the ES9028), a next-generation ESS ADC for analog source conversion, MQA Labs FOQUS and QRONO timing technologies, refined bass management, and Dirac Live Bass Control support (optional license). The dual subwoofer outputs now have higher output than the original M33.
How does Dirac Live work on the M33 V2?
Use the included calibration microphone and the Dirac Live app to measure your room's acoustics. The app uploads correction filters to the M33 V2. The included Dirac Live Limited Bandwidth license corrects timing and frequency response up to 500 Hz — the range where the room's effect is largest. Five customizable Dirac memory profiles let you save configurations for different rooms or seating positions. An optional upgrade to Dirac Live Full Frequency is available from Dirac. The optional Dirac Live Bass Control license independently calibrates dual subwoofers.
Does this have a built-in phono stage? What cartridges does it support?
Yes — the M33 V2 has both moving-magnet (MM) and moving-coil (MC) phono inputs. SNR is over 92 dB MM and over 76 dB MC. Accurate RIAA equalization (±0.2 dB) and a built-in infrasonic filter suppress subsonic noise on records without compromising bass response. NAD specifies the phono stage at the performance level of stand-alone units.
How do I connect my TV?
Use the HDMI eARC input. Run a single HDMI cable from your TV's HDMI ARC/eARC port to the M33 V2. Once paired with the TV's settings, the TV remote will control volume on the M33 V2 — no separate remote juggling for TV listening. Dirac Live applies to HDMI eARC audio too, since the M33 V2's MDC2-class signal path runs corrections on every input.
Can I bridge this for more power?
Yes. Pair the M33 V2 with a NAD M23 V2 stereo power amplifier (or two M23 V2s) in bridged-mono mode. The configuration delivers 700 W per channel into 8 Ω — flagship Masters Series output for the most demanding speakers and largest rooms.
What music services and streaming protocols does it support?
BluOS has integrated support for more than 20 services, including hi-res lossless from Amazon Music HD, Deezer, Idagio, Qobuz, and Tidal. The M33 V2 also supports Apple AirPlay 2, Spotify Connect, Tidal Connect, Qobuz Connect (added September 2025), Roon Ready, MQA decoding and rendering, and aptX HD Bluetooth.
How does this compare to the M23 V2?
The M23 V2 is a pure stereo power amplifier — it needs a preamp to feed it a signal. The M33 V2 is an all-in-one streaming integrated that includes everything (preamp, DAC, streamer, phono, headphone amp, room correction) plus a 200-watt power amp section. Pick the M33 V2 if you want one box that does everything; pick the M23 V2 if you already have a preamp (like the NAD M66) and want NAD's flagship stereo amp on its own. The two can also work together — M33 V2 + M23 V2 in bridged mode = 700 W per channel.
What's in the Box
- NAD M33 V2 Master Series BluOS Streaming DAC Amplifier
- Two detachable mains power cords
- HTRM 2 remote control with batteries
- Measurement microphone (with USB MIC Sound adapter and phone jack adapter)
- Quick Setup Guide
- Owner's manual
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Want to learn more about Purifi Eigentakt amplification, BluOS streaming, Dirac Live room correction, or NAD's Masters Series? Visit our Learning Center for guides, tips, and expert advice.
