SKU: 46662955877

NAD C 399 HYBRID DIGITAL DAC INTEGRATED AMPLIFIER

Sale price$1889.55 Regular price$2099.50
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Description

NAD C 399 HYBRID DIGITAL DAC INTEGRATED AMPLIFIERNAD's new classic amplifiers. Intelligent. Powerful. Efficient. Introducing the NAD C399 Perfect Power Trickled down from NADs Masters Series, the C 399s HybridDigital nCore amplifier can deliver 180 Watts per channel continuous power, and 250 Watts per channel instantaneous power. Highly efficient and remarkably powerful, the HybridDigital nCore amplifier can produce musical transients effortlessly. The design is renowned for its wide bandwidth, flat

 

NAD's new classic amplifiers. Intelligent. Powerful. Efficient.

Introducing the NAD C399

Perfect Power

Trickled down from NAD’s Masters Series, the C 399’s HybridDigital nCore amplifier can deliver 180 Watts per channel continuous power, and 250 Watts per channel instantaneous power. Highly efficient and remarkably powerful, the HybridDigital nCore amplifier can produce musical transients effortlessly. The 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. The Hypex nCore design enables the C 399 to produce neutral, distortion-free sound even at very high listening levels, with exquisite detail, superb portrayal of space, and thrilling dynamics.

Also trickled down from the Masters Series is the ESS Sabre 9028 high-resolution DAC, a design noted for near-zero levels of clock jitter, ultra-low noise and distortion, and wide dynamic range. This premium DAC enables the C 399 to reproduce all your digital sources with amazing musicality, stunning clarity, and precise soundstaging.

Future Proof

In 2007, NAD introduced Modular Design Construction, an innovative architecture for adding new functions to existing components. Many NAD products have rear-panel slots for MDC modules that perform 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 component, MDC2 opens up the future for new upgrades.

Equipped with Wi-Fi and Ethernet, the optional MDC2 BluOS-D module lets listeners play music from their favourite 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 sources connected to the C 399 to BluOS-enabled components in other rooms.

The Dirac Live function lets you measure your 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 your listening environment, Dirac Live dramatically improves bass clarity, imaging, and timbral accuracy. Thanks to its two-way architecture, the MDC2 BluOS-D performs room correction for all sources connected to your C 399.

Everything’s Connected

The C 399 can accommodate all your digital and analogue sources. Its MM phono stage delivers 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. There are two sets of line-level line inputs, with low-noise buffer amplifiers to prevent sonic degradation. 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.

In addition to two sets of speaker outputs, the C 399 has preamp output jacks and dual subwoofer outputs. Two-way apt-X 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.

A Timeless Classic

As with every NAD amplifier ever made, the C 399 gets the basics right: a precise volume control with accurate channel balance, low-noise circuits, and correct input and output impedances. But it goes far beyond the basics. With its HybridDigital nCore output stage and high-resolution ESS Sabre DAC, the C 399 can reproduce all your digital and analogue sources with a level of excitement and refinement that is unprecedented for a Classic-series integrated amplifier.

Thanks to NAD’s innovative MDC2 platform, the C 399 will keep pace with future developments. Essentially, MDC2 makes obsolescence obsolete. The C 399 can serve as the hub of a world-class music system today, and for years to come. With NAD’s C 399 HybridDigital DAC Amplifier, the legend continues.

Features & Details

  • 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 Ports 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
  • Control4, Crestron, RTI, URC, AMX, Savant, Elan certified


SPECIFICATIONS

Amplification

Line In, Speaker Out (Analog bypass on)

  • Continuous output power into 8 ohms and 4 ohms
  • >180W (ref. 20 Hz-20 kHz at rated THD, both channels driven)
  • THD (20 Hz – 20 kHz)
  • <0.02% (250 mW to 180 W, 8 ohms and 4 ohms)
  • Signal/Noise Ratio
  • >95 dB (A-weighted, 500 mV input, ref. 1 W out in 8 ohms)
  • Clipping power
  • 210W (at 1 kHz 0.1 % THD)
  • IHF dynamic power
  • 8 ohms: 217 W
  • 4 ohms: 400 W
  • 2 ohms: 506.4 W
  • Peak output current
  • >26 A (in 1 ohm, 1 ms)
  • Damping factor
  • >150 (ref. 8 ohms, 20Hz to 6.5kHz)
  • Frequency Response
  • ±0.3 dB (20 Hz – 20 kHz)
  • Channel Separation
  • >90dB (1 kHz)
  • >75dB (10 kHz)
  • Input sensitivity (for 180 W in 8 ohms)
  • Line In: 201 mV
  • Digital In: 10.25% FS

Preamplifier

Line Input, Pre Out (Analog bypass on)

  • THD (20Hz-20kHz)
  • <0.002 % at 2 V out
  • Signal/Noise Ratio
  • >106dB (IHF; A-weighted, ref. 500 mV out, unity gain)
  • Channel Separation
  • >100dB (1 kHz); >90 dB (10 kHz)
  • Input Impedance (R and C)
  • 56 kohms + 100 pF
  • Maximum Input Signal
  • >4.6 Vrms (ref. 0.1 % THD)
  • Output Impedance
  • Source Z + 320 ohms
  • Input Sensitivity
  • 65mV (ref. 500 mV out, Volume maximum)
  • Frequency Response
  • ±0.3 dB (20 Hz – 20 kHz)
  • Maximum voltage output – IHF load
  • >>5 V (ref. 0.1 % THD)

Phono

Phono Input, Pre Out (Analog bypass on)

  • THD (20Hz-20kHz)
  • <0.01% at 2 V out
  • Signal to Noise Ratio
  • >84dB (200 ohms source; A-weighted, ref. 500 mV out)
  • Input Impedance (R and C)
  • 46 kohms/100 pF
  • Input Sensitivity
  • 1.08mV (ref. 500 mV out, Volume maximum)
  • Frequency Response*
  • ±0.3 dB (20 Hz – 20 kHz)
  • Maximum Input Signal at 1kHz
  • >80 mVrms (ref. 0.1 % THD)

Headphone

Line Input, Headphone Out (Analog bypass on)

  • THD (20Hz-20kHz)
  • <0.005% at 1V out
  • Signal/Noise Ratio
  • >107 dB (32 ohms loads; A-WTD, ref. 1V out, unity gain
  • Frequency Response
  • ±0.3 dB (20 Hz – 20 kHz)
  • Channel Separation
  • >62 dB at 1kHz
  • Output Impedance
  • 2.2 Ohms

General Specifications

  • Supports bit rate/sample rate
  • up to 24 bit/192 kHz
  • Frequency band
  • 2.402G- 2.480G
  • Maximum transmit power (dBm)
  • 7 dBm ± 2 dBm

Weight & Dimensions

  • Gross dimensions (W x H x D) **
  • 435 x 120 x 390mm
  • (17 1/8 x 4 3/4 x 15 3/8)”
  • Net Weight
  • 11.2kg (24.7lb)
  • Shipping Weight
  • 13.6kg (30lb)

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 46662955877

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    4.8 ★★★★★
    Based on 27 reviews
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    A
    Verified Purchase
    Amazon Customer
    Whiting, US
    ★★★★★ 5
    Easy Set Up and Great Sound Distribution
    Style: AVR-X3800H
    I replaced an old Onkyo 535 with this Denon. It was a significant upgrade. There is zero noise, the Bluetooth is easy to use and provides excellent sound, and the HDMI circuitry is outstanding. The eARC capability is compatible with 2.1 HDMI, and it works seamlessly. Of note, I really like the way it provides the best sound configuration automatically for each source, and I don't have to switch around to find the best sound option. For example, if the source is compatible with Atmos, it provides Atmos. If it's only compatible with Dolby surround, it switches to that. Finally, the distribution of sound is superb. I have a 7.1 speaker configuration of mostly mid-level speakers, and the Denon uses them to their fullest. Rear sounds come clearly from the rear...same with each side, etc. And most of all, I don't have to tweak the system to get that. I just used the provided microphone and ran the set up (which was really easy), and I have really great sound. This unit is a good value.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 28, 2026
    R
    Verified Purchase
    Reviewer JR
    Houston, US
    ★★★★★ 4
    Expensive, but nice
    Style: AVR-X4800H
    I previously owned a Denon AVR-2808ci since 2008. That model's remote control didn't work well, and all controls were unnecessarily convoluted, so I was hesitant to buy another Denon. The thing that made me give them another chance is that the sound quality was nice, and I was hoping their engineers learned from their mistakes. I'm glad I gave them the chance. This new model, the AVR-X4800H, also has excellent sound quality; however, unlike the old one I had, the controls on both the receiver itself, and especially on the remote control, are significantly improved. The controls are intuitive, and everything works perfectly. That alone made me happy with the purchase; however, the ability to run 4k @ 120 hz for video gaming, and with extra HDMI ports they have here, all added to that value quite a bit. Then, in addition to that, the old model I had ran super hot. In fact, so hot, from just basic usage, it fried itself three different times in the span of a couple weeks (during the winter time), and it kept being repaired under warranty, until they replaced the top grate with one that allows more ventilation. However, this new model doesn't appear to suffer from that same issue. It gets pretty warm, but nowhere near what the old one did -- and I'm using the same Bose Surround Sound system with the new one. That said, as a precaution, I went ahead and ordered an AC Infinity AirCom to put on top of it, to assist with cooling/ventilation, which has worked wonderfully as well. No the tempts on this Denon AVR have never gone above 87 deg, even on a warm room on the third floor during the late spring / summer time. The other hesitancy I had was the price tag. I only purchased it because it was on a "25% discount", from $2500 down to around $1850. Granted, it was similar when I purchased the other one 15 years ago, but it's just an awful lot of money, in my humble opinion. I would say it was borderline on whether I would buy it for this amount, and if it went up at all, I wouldn't have purchased it. I may not purchase it again for this price, especially if I have one already that is working well -- it was only the wonky one that I already owned, that I just wanted to get rid of, that put more pressure to give them one more chance. With a working device, I probably wouldn't pay these prices again. But, if it were a few hundred dollars cheaper, then I probably would buy it again. Hopefully this helps someone. It's a great device, just a bit expensive. And, if you get it, I would still recommend getting a top cooling fan for it.
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    Reviewed in the United States on June 13, 2024
    B
    Verified Purchase
    B. Husher
    Houston, US
    ★★★★★ 5
    Solid Next-Generation AVR.
    Style: AVR-X2800H
    I bought this for my 2.1 system used for TV (4K with 120 Hz), movies, video games (4K with 120 Hz), turntable, and digital audio. I have previously used Denon, Marantz, and NAD AVRs. I was using an old NAD without HDMI, and I really wanted everything to synch up. I tried out a stereo receiver since I am only running a 2.1, but I didn't mesh for me. It was fine, but I felt it was lacking especially around multi-channel audio and the lack of an LFE output for the sub. The 2800H was very intuitive and easy to set up right out of the box. Hooked up to a TV, it runs through everything step-by-step. After the initial setup, I downloaded and ran a firmware update. When I finally got to use my ears, the sound was already superior to what I had from the mid-2000s 60-watt-per-channel NAD AVR with an external Bluetooth/DAC and PCM cable from the TV AND the brand-new, 2023 model HDMI-equipped stereo receiver (that cost me more than the 2800H). After running Audyssey, the sound only got better. Then, I set up my 2 front speakers on a bi-amp setting, utilizing two of my unused channels to drive my woofer and tweeter with discrete power sources. The eARC and settings makes turning on my TV, PS5, and AVR easier and quicker. I enjoy the fact that I can use any remote to fix the volume so there is always a remote close when we need a quick mute or change in the volume. I find the HEOS app to be a little clunky, but I am loving it anyway. I can run high-definition audio through streaming, which is a huge improvement from using Apple Airplay 2 or Bluetooth. It also lets me talk on the phone, send and receive messages, etc. without interrupting the music. Right now, I am still tweaking my settings, but I can definitely say that the sound is really good. Have I heard better? Sure. This isn't an 11-channel receiver with Dirac, a 200 watt-per-channel, high-end "audiophile"-grade component, or a tube amp. It is best at multi-channel audio and does really well for music, especially with a good set of speakers and quality sub with parametric EQ. My speakers have are low sensitivity (84dB), and the 2800H puts out enough grunt to listen give nuance and life to music in listening position, to bump the music to listen in my kitchen two rooms over, or watch at theater-level volume in my medium-sized living room with 8-foot ceilings. This thing is getting daily use, and it is more than enough to get the job done in style. For what I need, the 2800H is spot on.
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    Reviewed in the United States on November 9, 2023
    S
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    superx1
    Phoenix, US
    ★★★★★ 5
    High-Quality Wire That’s Worth Every Foot
    Size: 14/2 AWG-200 FT, Color: White
    The GEARit 14 Gauge Speaker Wire (200 ft, CL2 rated) has been a great addition to my home audio setup. The 14 gauge thickness feels solid and gives me confidence that I’m getting good signal transfer without unnecessary loss, even over long runs. The CL2 rating is a big plus — it’s reassuring to know this cable is safe and approved for in-wall installation if I ever decide to run speakers through the walls rather than on the surface. What I like most: Flexible yet strong — easy to pull through studs and around corners Clear polarity markings — no guesswork when wiring speakers Smooth insulation — doesn’t snag or tangle while measuring and cutting Good value for 200 ft — plenty to cover multiple rooms or channels Whether you’re doing a DIY install or upgrading your audio system, this speaker wire delivers solid performance and peace of mind. Highly recommended!
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    Reviewed in the United States on February 21, 2026
    Y
    Verified Purchase
    Yusuf Burns
    Phoenix, US
    ★★★★★ 5
    Quality wires
    Size: 14/2 AWG-200 FT, Color: White
    My speakers 🔊 are working much better and the sound is a lot better
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