Trickled down from NAD’s Masters Series, the C 399’s HybridDigital nCore amplifier is highly efficient and remarkably powerful. It can deliver 180 Watts per channel continuous power, and 250 Watts per channel instantaneous power, allowing the C 399 to produce musical transients effortlessly. The HybridDigital nCore design is renowned for its wide bandwidth, flat frequency response, clean clipping behaviour with instant recovery, high current capability, and stability into demanding low-impedance speaker loads. Noise and distortion are vanishingly low under all operating conditions. The minute levels of harmonic distortion are dominated by sonically benign second and third harmonics. These refinements enable the C 399 to produce neutral, distortion-free sound even at very high listening levels, with thrilling dynamics, exquisite detail, and superb portrayal of space.
In 2006, NAD introduced Modular Design Construction (MDC), an innovative architecture for adding new functions to existing components. Many NAD products have rear-panel slots for MDC modules that perform UHD (4K) support, HDMI switching, BluOS multi-room music streaming, Dolby Atmos surround processing, and other functions.
The C 399 is the first product to feature NAD’s new MDC2 architecture. By enabling two-way communications between the module and host component, MDC2 allows for adding desirable features.
Equipped with Wi-Fi and Ethernet, the optional MDC2 BluOS-D module lets listeners play music from their favorite streaming services through the C 399, using the acclaimed BluOS Controller app for Android, iOS, macOS, and Windows. Like all BluOS Enabled products, the MDC2 BluOS-D has integrated support for dozens of streaming services; and supports Apple AirPlay 2, Spotify Connect, and Tidal Connect. Two-way communications also enable the MDC2 BluOS-D to stream music from local sources connected to the C 399 to BluOS Enabled components in other rooms.
The Dirac Live function lets users measure their room’s acoustics using a supplied microphone and intuitive app, and then upload correction curves to the MDC2 BluOS-D. By compensating for acoustic anomalies in listening environments, Dirac Live dramatically improves bass clarity, imaging, and timbral accuracy. Thanks to its two-way architecture, the MDC2 BluOS-D performs Dirac Live room correction for all sources connected to the C 399.
The C 399 has two optical and two coaxial digital inputs, plus an HDMI-eARC port for playing audio from a connected TV, while controlling amplifier output with the TV’s remote control. Analogue fans are well served with two pairs of RCA line-level inputs, plus a MM phono stage with ultra-precise RIAA equalization, extremely low noise, and high overload margins. The phono preamp also features an innovative circuit that suppresses the infrasonic noise present on all LPs, without compromising bass response. The line inputs have low-noise buffer amplifiers to prevent sonic degradation.
In addition to two sets of speaker outputs, the C 399 has preamp output jacks and dual subwoofer outputs. Two-way aptX HD Bluetooth allows 24-bit streaming from mobile devices, and high-quality output to Bluetooth headphones. Also built-in is a dedicated headphone amplifier with low output impedance and high output voltage capability, enabling the C 399 to drive demanding high-impedance studio monitor headphones.
Key Features of the NAD C 399 HybridDigital DAC Amplifier:
- Hybrid Digital nCore Amplifier
- Continuous Power: 180 Watts per channel into 8/4 ohms
- Instantaneous Power: 250 Watts per channel
- Vanishingly low harmonic and intermodulation distortion
- Dual MDC2 Slots for expanded functionality
- Optional MDC2 BluOS-D module adds BluOS multi-room streaming and Dirac Live room correction
- Jitter-free 32-bit/384kHz ESS Sabre DAC
- Ultra-low-noise MM phono stage with infrasonic filtering circuitry
- Two optical, two coaxial digital inputs
- HDMI-eARC input
- Two pairs of line-level analogue inputs with low-noise buffer amplifiers
- Speaker A/Speaker B outputs
- Two-way aptX HD Bluetooth
- Dual subwoofer outputs
- Dedicated headphone amplifier
- IR remote
- 12V Trigger in/out
- IR in/out
- RS-232 Serial port for control integration with home automation systems
- Seamless integration with Control4, Crestron, RTI, URC, Lutron, iPort, Elan, PUSH and KNX smart home control systems
NAD MDC2 BluOS-D Module
DIRAC LIVE ROOM CORRECTION
he MDC2 BluOS-D is the first expansion module offered by NAD that adds Dirac Live room correction* to a two-channel component. Owners use the supplied calibrated microphone and intuitive Dirac Live app to analyze their room’s acoustics, and then upload correction filters to the MDC2 BluOS-D module. The MDC2 BluOS-D module can store up to five Dirac profiles for different listening positions and room conditions—for example whether the drapes are open or closed.
As well as correcting peaks and dips in frequency response, Dirac Live optimizes impulse response by learning how sounds reflect off various surfaces in the listening space. The result is dramatically improved bass clarity, imaging, and timbral accuracy, on music and movie soundtracks.
BLUOS MUSIC STREAMING
The MDC2 BluOS-D module also features BluOS high-resolution music streaming. Available for iOS, macOS, Android, and Windows, the flexible BluOS Controller app provides access to hundreds of internet radio stations and more than 20 streaming services. Like all BluOS products, the MDC2 BluOS-D module supports high-resolution playback up to 24- bit/192kHz, as well as MQA. With the MDC2 BluOS-D module, users can share music from any source connected to the host component with up to 63 BluOS-enabled components on the same network. Playback can also be controlled by Alexa or Google voice commands, and from smart home control systems from Crestron, Control4, Lutron, RTI, and others.
Not only does the MDC2 BluOS-D module include the latest Wi-Fi and Ethernet protocols, but it also supports Apple AirPlay2, Spotify Connect, and Tidal Connect, and incorporates two-way Qualcomm aptX HD Bluetooth. There’s also a USB port for playing music from a connected USB drive. With an MDC2 BluOS-D module installed, MDC2-capable components can play music from a vast range of local, networked, and cloud-based sources. And thanks to its bidirectional communications architecture, MDC2 is ready for technology upgrades that have yet to be conceived. Key Features of the NAD MDC2 BluOS-D Module
- Dirac Live Room Correction*
- Calibrated microphone included for Dirac setup
- Wi-Fi and Ethernet networking
- BluOS music streaming to up to 63 zones
- Support for hundreds of internet radio stations and over20 streaming services
- High-res audio to 24-bit/192kHz
- MQA decoding and rendering
- Apple AirPlay 2 and Siri voice control
- Amazon Alexa and Google Assistant voice control
- Spotify Connect and Tidal Connect
- Two-way (send/receive) Qualcomm aptX HD Bluetooth
- *The module includes a license for Dirac Live with the option for advanced users to upgrade to the Dirac Live Full Frequency version.