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NAD C 399
The NAD C 399 HybridDigital DAC Amplifier stands as the flagship of the Classic Series, bringing Masters Series technology and refined engineering to a wider audience. Its HybridDigital nCore amplifier delivers 180 Watts per channel of clean, effortless power, while refined digital processing reveals fine musical detail with clarity and control. Widely recognized by reviewers and honoured with multiple Product of the Year awards, the C 399 has become one of NAD’s most trusted and popular amplifiers. With optional BluOS streaming and Dirac Live Room Correction (Limited Bandwidth) through MDC2, the C 399 adapts as your system evolves and helps deliver balanced listening in any room. HDMI eARC, a precise MM phono stage, and versatile digital and analogue inputs make it easy to enjoy music from all your favourite sources.
Includes Dirac Live® Limited Bandwidth licence and calibration microphone for room correction up to 500Hz - MDC2 BluOS-D card required
- 180 Watts per channel of HybridDigital nCore amplification
- Refined digital architecture for detailed, low-noise playback
- Dual MDC2 expansion slots for future upgrades
- Optional MDC2 BluOS-D module adds BluOS high-resolution streaming and Dirac Live Room Correction (Includes Dirac Live® Limited Bandwidth licence and calibration microphone for room correction up to 500Hz - MDC2 BluOS-D card required
- HDMI eARC input for seamless TV audio integration
- Ultra-low-noise MM phono stage with infrasonic filtering
- Two optical and two coaxial digital inputs
- Two sets of analogue inputs with low-noise buffer amplifiers
- Dedicated headphone amplifier and Bluetooth with aptX™ HD support
- Dual subwoofer outputs and two sets of speaker terminals
High-Current Power and Precision (Section 1 of 4)
The C 399 uses NAD’s HybridDigital nCore amplifier platform to deliver 180 Watts into 8 ohms per channel of clean, effortless power. Known for its wide bandwidth, stable performance, and exceptionally low distortion, the nCore design maintains composure even with demanding speakers. The result is detailed, dynamic playback that preserves the energy and expression of your music — performance that continues to earn praise from listeners and reviewers alike.
Clear, Dynamic Digital Performance (Section 2 of 4)
A refined digital architecture ensures low noise, accurate imaging, and wide dynamic range across all sources. This precision reveals greater texture, definition, and openness in your favourite recordings. Whether streaming high-resolution files or listening to digital sources, the C 399 delivers a natural, transparent presentation.
Built for the Future with MDC2 (Section 3 of 4)
With two MDC2 expansion slots, the C 399 adapts as new technologies emerge. Adding the optional MDC2 BluOS-D module enables high-resolution streaming, whole-home audio integration, and Dirac Live Room Correction (Limited Bandwidth) through the BluOS Controller app. Thanks to MDC2’s two-way design, room correction benefits apply to all connected sources, ensuring consistently balanced performance in any space.
Versatile Connections for Every Source (Section 4 of 4)
HDMI eARC, digital and analogue inputs, and a precise MM phono stage make it simple to connect all your music and entertainment sources. Two sets of speaker outputs, dual subwoofer outputs, and a dedicated headphone amplifier offer flexible system configuration. Bluetooth with aptX™ HD support adds the convenience of high-quality wireless listening,rounding out a system noted for its long-term value and reliable performance.
Dealers selling NAD near you
Authorized dealers for NAD C 399
- Holt Hill — online and in-store — Andover, Massachusetts, United States (website)
- Resolution A/V — in-store — New York City, New York, United States (website)
- The Music Room — online and in-store — Erie, Colorado, United States (website)
- Aalen Hifi — in-store — Schwäbisch Gmünd, Baden-Wurtemberg, Germany (website)
- Absolute Audio - Canada — in-store — Calgary, Alberta, Canada (website)
- Abt Electronics — online and in-store — Glenview, Illinois, United States (website)
- Acoustic Technologies — online and in-store — Montréal, Québec, Canada (website)
- AES — in-store — Mitte, Hessen, Germany (website)
- Ahead Stereo — in-store — Los Angeles, California, United States (website)
- Alex Audio Video — in-store — Sofia, Sofia City Province, Bulgaria (website)
and 279 more verified dealers
Compact power with reference-class detail
The NAD C 399 packs 180W of nCore power into a compact, well-engineered chassis and delivers an exceptionally clean, neutral presentation. Reviewers consistently praised its ultra-quiet noise floor, wide dynamics and precise imaging, and its ESS Sabre–based DAC and robust headphone stage extend its versatility (HomeTheaterHifi, The Absolute Sound).
Construction and ergonomics feel premium for the price, with tidy I/O and a satisfying volume control; the MDC2 BluOS-D option adds streaming and Dirac Live room correction for integrators seeking DSP and multiroom capability (Audioholics, SoundStage Solo).
Ideal for two-channel listeners who want reference-level sonics, flexible connectivity, and the option to expand into streaming/room correction without stepping up to NAD’s Masters price tiers.
Pros
- Robust, high-current amplification that drives difficult loads with authority — delivers sustained 180W per channel and effortless transients.
- Exceptionally low noise floor and neutral, highly resolving soundstage and imaging that reveal fine detail without coloration.
- Feature-rich, modular platform: ESS Sabre DAC, excellent phono and headphone sections, plus optional MDC2 BluOS-D module for streaming and Dirac Live.
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Cons
- HDMI eARC handshake can be intermittently unreliable on some setups, requiring reboots to restore TV audio passthrough.
- Full streaming, MQA and Dirac Live require the optional MDC2 BluOS-D module (additional cost), which some users must budget for to unlock all features.
Sound Quality
92/100
Dynamics
92/100
The nCore hybrid digital amplifier and high current capability deliver strong headroom and effortless transient behavior (ecoustics: 'musical transients effortlessly'; SoundStage Solo: 'deliciously dynamic', HomeTheaterHifi: 'more than stout enough to drive any speakers'). Reviewers report the amp never running out of steam and retaining clarity at high levels, which aligns with an excellent dynamics rating for this topology and power class.
Soundstage Imaging
91/100
Multiple reviews note a spacious, three-dimensional presentation with precise, stable imaging (HomeTheaterHifi: 'dynamic and three-dimensional sound stage'; SoundStage Solo: 'excellent soundstage and imaging'; The Absolute Sound: 'Imaging and soundstaging are as solid, precise, and stable'). The C 399's low distortion and quiet background help produce convincing depth and instrument placement.
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Build Quality
88/100
Build and ergonomics are praised—tidy I/O, solid remote and attractive styling, plus a well-finished volume knob (SoundStage Solo unboxing: 'exactly as well-built as you’d expect an NAD component to be'). While reviewers acknowledge Masters-series components use even finer materials, the C 399 is described as robust and well-constructed for its class and price.
Features Connectivity
95/100
Very well equipped: high-end ESS Sabre DAC, multiple digital inputs (coax, optical, HDMI eARC), excellent headphone amp, built-in phono with selectable loading, MDC2 BluOS-D modular streaming/Dirac Live option (adds Wi‑Fi/Ethernet, AirPlay2, MQA, USB, BluOS streaming), 12V/IR integration and more. The combination of flagship DAC, modular streaming/room-correction, strong digital I/O and headphone capability places it at the top of the allowable feature score range.
Value for Money
94/100
Reviewers repeatedly call the C 399 an outstanding value—'reference level performance to a reasonable price point' (HomeTheaterHifi), 'so far off the charts' in value (The Absolute Sound), and several reviewers noted it outperformed much more expensive gear in blind comparisons. Multiple critics said NAD could have charged more and still represented excellent value, supporting a strong value score.
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