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NAD C 399 BluOS-D Integrated amp with DAC, Bluetooth®, and pre-installed MDC2 BluOS-D module

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  • $2,599

About the NAD C 399 BluOS-D

A classic amplifier for the digital age


NAD's C 399 BluOS-D integrated amplifier gives you pristine power and multi-room streaming with forward-thinking flexibility.

The C 399, NAD's flagship integrated amplifier in its Classic line, will give you the fantastic sound we've come to expect from NAD. It gets the basics right, including a precise volume control with accurate channel balance and low-noise circuits. And it also features a high-performance DAC and future-ready expansion slots — one of which contains the new MDC2 BluOS-D network streaming module.

Masterful power

This amp will render your digital and analog sources in sparkling, authoritative detail. Previously featured only in NAD's Masters Series, the C 399's HybridDigital nCore amplifier is super-efficient and effortlessly powerful. It can deliver 180 watts per channel continuous power, and 250 watts per channel instantaneous power. That means it can handle crazy dynamic peaks, from hard-hitting electronic dance tracks to explosive Marvel movies. And it'll drive demanding low-impedance speakers with cool-running high-current power and vanishingly low noise and distortion levels — even when cranked.

High-end digital decoding

The high-performance built-in ESS Sabre ES9028 DAC previously only came in NAD's Master Series components. It's capable of decoding high-res music files at up to 32-bit/384kHz, and it's known for its wide dynamic range, ultra-low noise and distortion, and near-zero levels of jitter (timing errors that can smear musical detail).

Flexible connections

The C 399 has two optical and two coaxial digital inputs for taking advantage of its great internal DAC. You also get an HDMI eARC port for playing TV sound and controlling the amplifier volume with the TV's remote control. Analog connections include two pairs of RCA line-level inputs, plus a moving magnet phono stage that gives you precise, natural sound with extremely low noise. The phono preamp's circuit design cuts down on frequencies below the threshold of human hearing — that inherent turntable rumble — without conceding fantastic bass response.

In addition to two sets of speaker outputs, the C 399 has preamp output jacks and dual subwoofer outputs. Two-way Bluetooth with aptX® HD Bluetooth allows 24-bit streaming from mobile devices, and high-quality output to compatible Bluetooth headphones. A front-panel 1/4" jack connects you to a built-in headphone amplifier that can drive even demanding high-impedance cans.


BluOS connectivity with NAD's new two-way MDC2 architecture

The C 399 is the first component to feature NAD's next-generation MDC2 architecture. MDC (Modular Design Construction) is a concept NAD introduced in 2006 to "make obsolescence obsolete," and this new version allows two-way communication between the module and the amp.

The pre-installed MDC2 BluOS-D module gives you 24-bit high-res music playback from sources on your local network or from the web. Stream music from personal drives or from internet streaming services. The selection of supported services — including TIDAL, Spotify®, Qobuz, and Amazon Music, among others — is one of the most impressive we've seen. Apple users can easily stream from their devices using AirPlay® 2.

New two-way communication also lets this module stream music from your connected sources — even a turntable — to BluOS components in other rooms.

Dial in perfect sound for your space

It's rare that you find an acoustically perfect space for your system. The BluOS-D module's Dirac Live function lets you compensate for your room's acoustics to get clear and accurate bass and a balanced soundstage across the audio spectrum. Use the supplied mic and free user-friendly app to measure your room's acoustic response, then upload correction curves to the module. Thanks to its two-way architecture, the Dirac Live room correction works for all sources connected to the amp.

Product highlights:

  • 180 watts x 2 channels into 8 or 4 ohms (20-20,000 Hz) at 0.02% THD

  • 4-ohm stable for use with a wide range of speakers

  • high-performance HybridDigital nCore Class D amplifier design

  • jitter-free 32-bit/384kHz ESS Sabre DAC for high-performance playback of digitally connected sources such as a CD player

  • dual MDC2 slots for expanded functionality (one slot has the pre-installed BluOS-D module)

    • these slots only accept MDC2 modules; they will not work with previous MDC modules

  • built-in two-way Bluetooth with high-quality aptX HD audio coding

    • stream to the C 399 from your phone, computer, tablet, or other device with Bluetooth

    • stream from the C 399 to Bluetooth headphones or speakers

  • independent built-in high-output headphone amplifier

  • remote control

  • compatible with leading third-party control systems like Control4, Crestron, RTI, and URC

BluOS-D module features:
  • BluOS compatibility for expanding your system with Bluesound multi-room wireless speakers and components

  • connects to your home network via wired Ethernet or Wi-Fi for music streaming

    • free BluOS controller app for iOS®, Android™, Windows®, and Mac® OS X®

    • support for over 20 streaming services including Spotify, Deezer, TIDAL, Qobuz, Amazon Music, and more

    • support for hundreds of free internet radio stations

  • Apple® AirPlay® 2 lets you stream easily from an iPhone® or iPad®

  • compatible file types: MQA, MP3, AAC, WMA, OGG, WMA-L, FLAC, ALAC, WAV, and AIFF

  • Dirac Live room correction

    • calibrated microphone included for Dirac setup

  • 4 digital audio inputs (2 optical/2 coaxial)

  • HDMI eARC port for playing TV sound

  • 3 stereo RCA audio inputs, including a phono input (for use with a moving magnet cartridge)

  • stereo RCA preamp output for connecting a separate amplifier

  • two mono RCA subwoofer outputs

  • RS-232C port for use with external controllers

  • IR and 12-volt trigger inputs and outputs

  • 1/4" front-panel headphone jack

  • 2 pairs of binding post speaker connectors for A and B speakers

  • USB (Type A) input for service only

  • Ethernet port for wired connection to a home network

  • USB (Type A) input for connecting USB thumb drives and compatible external hard drives

  • USB mini (Type B) input for service only

  • signal-to-noise ratio: 95 dB

  • detachable power cord

  • Wi-Fi and Bluetooth antennas included

  • 17-1/8"W x 4-13/16"H x 16-7/16"D (6-3/8"H w/antennas)

  • weight: 24.7 lbs.