NAD M66 - Stereo BluOS Streaming DAC-Preamp

The Masters M66 BluOS Streaming DAC Preamp is a revolutionary hi-fi component that combines an audiophile-grade D/A converter with a high-resolution multi-room music streamer. Equipped with Dirac Live Room Correction and Dirac Live Bass Control, its sleek design and vibrant 7” touchscreen exude quality and class. Combine it with NAD's M23 power amplifier for a stunning system that excels technologically, sonically and visually.

NAD MASTERS M66 STREAMING DAC PREAMP

The Masters M66 BluOS Streaming DAC preamp is not only the most advanced preamp NAD has ever offered, it represents a whole new class of discrete hi-fi components. In addition to a plethora of inputs including MM/MC phono and HDMI eARC, the M66 includes an audiophile-grade DAC and high-resolution multi-room music streamer.

In addition to full-bandwidth Dirac Live Room Correction, the M66 features Dirac Live Bass Control, which allows each connected subwoofer to be independently controlled to ensure consistent playback throughout the listening room. Combining Dirac Live Room Correction and Dirac Live Bass Control, the M66 delivers more precise performance in the room than any other two-channel component ever offered.

With its sleek aluminum body, smooth digital volume control and dynamic 7” touchscreen, the M66 exudes class and quality. In terms of looks, sound and technology, it is the ideal complement to the award-winning Masters M23 power amplifier from NAD. Of course, the Masters M66 BluOS Streaming DAC preamp can be paired with any high power amplifier.

music everywhere

The M66 is a high-resolution network streamer based on the acclaimed multi-room music management system BluOS, providing access to more than 20 streaming services, including several that offer lossless and high-resolution audio. With the intuitive BluOS app on a smart device or PC, listeners can play music from their favorite streaming service, personal music library and thousands of internet radio stations in resolutions up to 24-bit/192kHz. Like all BluOS-enabled components, the M66 has full MQA decoding and rendering capability.

With BluOS, you can listen to music in just one room or share music over your home network with up to 63 other BluOS-enabled components from NAD and other hardware partners. The M66 easily integrates with home control systems from Control4, Crestron, ELAN, RTI, URC and others. Listeners can also control playback by voice using Amazon Alexa or Apple Siri.

Perfect response

Dirac Live room correction and Dirac Live bass control are integrated into the M66. Connect the supplied calibrated microphone to the M66's USB port, then launch the Dirac Live app on a smart device or a PC. The app guides you through the calibration process and then generates correction filters that compensate for acoustic problems like standing waves and unwanted reflections. You'll benefit from more structured bass, improved tonal accuracy, vastly improved clarity and focused imaging.

As the first stereo component, the M66 has four balanced and four unbalanced subwoofer outputs and is equipped with Dirac Live Bass Control, which allows independent calibration of multiple subwoofers. Dirac Live Bass Control optimizes the subwoofer output in both the frequency and time domains, ensuring a seamless fusion between subwoofer(s) and main speaker(s) and smooth, consistent bass response across the entire listening area and not just in the sweet Spot.

Top performance

At the heart of the M66's digital section are ESS Technology's Saber DAC and ADC chips. These audiophile designs are known for their exceptionally wide dynamic range, extremely low noise and distortion, and outstanding time domain performance.

The M66 is the first component to feature NAD's innovative Dynamic Digital Headroom (DDH) circuitry. When enabled in the BluOS app, DDH eliminates digital inter-sample peak clipping distortion that can occur in digital-to-analog conversion with sudden high-frequency transients. The advantages are particularly noticeable with percussion instruments: Rimshots are more powerful but less shrill; Cymbals appear more realistic and less splashy.

For volume control, the M66 uses a high-precision resistor cascade circuit. Compared to traditional analog circuitry, the M66's digital volume control significantly reduces thermal and associated distortion, maximizes dynamic range and provides more precise left and right channel matching across the volume range.

By default, analogue signals are converted to digital signals, so features such as Dirac Live Room Correction and Bass Control are available for all sources. However, the M66 features a selectable Analog Direct mode that bypasses all digital processing, as well as separate signal paths for analog and digital sources. Internally, the analog and digital sections are physically separated and shielded by dedicated power supplies, so the analog signals are not affected by digital interference when Analog Direct mode is engaged. The BluOS app even lets you disable the M66's WiFi and Bluetooth circuitry to avoid RF interference.

Connect everything

With plenty of analog and digital inputs, the M66 can accommodate all of your source components. Vinyl fans will appreciate the M66's ultra-quiet MM/MC phono stage, which features precise RIAA equalization, high overload margins, and innovative circuitry that rejects infrasonic noise inherent in vinyl playback without sacrificing bass response . For TV and movie viewing, there is an HDMI eARC port for connection to an HDTV. Other options include two coaxial and two optical S/PDIF inputs, a balanced AES/EBU digital input, two pairs of line-level RCA analog inputs and a pair of balanced XLR inputs.

In addition to the unbalanced RCA and balanced XLR outputs for connection to a power amplifier, the M66 has four unbalanced RCA and four balanced XLR subwoofer outputs. The M66's special headphone amplifier has a very low output impedance and a very high maximum output voltage, so that it can also drive demanding high-impedance studio monitor headphones. The M66 also features Bluetooth connectivity with support for AAC, LDAC and aptX HD codecs.

Forward to the future

The Masters M66 represents the pinnacle of what is technically achievable in a two-channel preamplifier today, and will continue to maintain its technological leadership for decades to come. There are two expansion slots on the rear that support MDC2, the latest generation of NAD's future-proof Modular Design Construction technology. As technologies evolve, M66 owners can add new features simply by inserting an MDC2 module into one of the slots.

Everything about the NAD Masters M66 BluOS Streaming DAC Preamp is designed to inspire pride in the owner: the gorgeous 7-inch touchscreen, the sleek aluminum body, and the silky-smooth digital volume control. With its cutting-edge technology, unmatched versatility and superb build quality, the Masters M66 is truly a masterpiece of sound.

Features & Details:

• Network connection via Ethernet or WLAN
• BluOS streaming platform with access to 20+ streaming services including some with Losless and HiRes audio offerings
• ESS flagship chips: ES9038PRO DAC and ES9822PRO ADC
• Innovative Dynamic Digital Headroom (DDH) circuitry eliminates inter-sample peak clipping distortion
• Complete MQA hardware decoding and rendering
• Supports Apple AirPlay 2, Spotify Connect, Tidal Connect
• Seamless integration with smart home systems such as Crestron, Control4, ELAN, RTI, URC and more
• Supports voice control via Amazon Alexa and Apple Siri
• Dirac Live room correction
• Four balanced and four unbalanced subwoofer outputs
• Dirac Live Bass Control allows for seamless blending between the subwoofer(s) and main speaker(s), as well as consistent bass response throughout the listening area
• Ultra-quiet MM/MC phono stage with precise RIAA equalization, high overload limits and infrasonic filter
• HDMI port with eARC support
• Two optical and two coaxial S/PDIF inputs, one balanced AES/EBU digital input, two pairs of analog RCA line level inputs, one pair of balanced XLR inputs
• Special headphone amplifier with low output impedance and very high output voltage
• High-precision digital resistor cascade circuit for volume control
• 7'' front panel touch screen
• Elegant aluminum housing
• Two MDC2 expansion bays for future upgrades
• Premium IR remote control included

*all features and details given are provisional