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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    4.5 ★★★★★
    Based on 303 reviews
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    K
    Verified Purchase
    KatAC
    Boise, US
    ★★★★★ 5
    Best fix for flats that I've ever used
    I have a large zero turn mower that is 10 years old and had a slow leak in the front tire. I tried fix a flat but even a full can would barely get any of the product into the tire and would end up oozing around the valve. After a long search, I found FlatOut. I was reluctant at first because it required removing the valve core, which I had never done. (I'm a 60+ year old female.) But the ratings were so high and the fact it was made with Kevlar, changed my mind. And I am so glad!! The instructions were so simple, core valve came right out (and the tool and new core valve is included), the tube that you pull from the bottle, fit snuggly on the valve stem yet was not difficult to put on. I elevated the bottle, added the amount I thought it needed, removed the tube, pushed it back in the bottle, replaced the cap, and then put the new valve stem back in. It only took a few minutes. And no mess! I had put on rubber gloves, expecting some to spill but it's a thick liquid and does not seep out anywhere it's not supposed to! I filled the tire with air and checked it each day for a week to make sure there was no leak before I used it. I then mowed some rough ground that is hilly and rocky and when I was done, the tire was perfect. I was so pleased I did the same thing to the other tire that never lost any air because I didn't want to wait for a leak. BUY THIS PRODUCT if you are tired of messing with slow leaks or flat tires! I will never use anything else. I purchased a package of core valves and taped them on the bottle so I'll have them when needed! I would give this product 10 stars if I could. It states on the bottle this product was used in the military, so it really has been tested. Thank you FlatOut for a product that actually does what it says!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 15, 2023
    G
    Verified Purchase
    Gabriel
    Massapequa, US
    ★★★★★ 5
    IT JUST WORKS!
    Size: 1-Pack (32 oz), Size: 1-Pack (32 oz)
    I recently found a piece of wire stuck in the side wall of my Zero Turn mower's rear tire. The tire has less than a full season of use, so I was looking for an alternative to "FIX" my sidewall puncture instead of removing it and patching or replacing. After looking up several different products, I decided to try Multi Seal. After reading the directions, I removed the valve tool that was included with the bottle. It was a little confusing, but the tool is basically a "stopper" for the clear hose that's in the bottle. Once I removed the valve from the stem, I connected the clear hose to the stem and proceeded to squeeze the product into the tire. I was surprised as to how easily it flowed into the tire. It was much easier than other tire sealants I've used. Although, its recommended to use half of the bottle in a rear tire, I used significantly more. I wanted to make sure the sealant would get to the sidewall. When I was finished adding the product, I replaced the valve in the stem and inflated the tire to the recommended pressure. It was at this time I pulled the wire from the tire. I started the mower and drove it for a few minutes. When i stopped, the product had started to escape the tire through the puncture. In fact, I had another unknown puncture that showed signs of the Multi Seal product. After a few minutes, air was still escaping from the punctures so I ended up driving the mower for about 10-15 minutes. This seemed to do the trick. Over a week later and 1.5 hours of operation later, the tire is still holding air pressure. This product is the BEST tire sealant I have ever used. I will be adding it to all my non-highway tires that I own.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 22, 2019
    M
    Verified Purchase
    MasterTarl
    San Leandro, US
    ★★★★★ 4
    Works with effort
    Size: 1-Gallon (128 oz)
    I was skeptical about buying this. However, after installing the recommended ozs per tire, it seems to have fixed the two flats on my zero-turn lawnmower. I will continue to monitor the pressure, but it's held for four days at the time of this review. Caution. Even with a flat tire and no air, pumping the product into the tire builds backpressure, and the internal two-piece pump shaft blew apart on me; afterward, the hose connecting to the value stem blew off. In short, a lot of fluid was lost. Finally, the bottleneck of the pump collapsed when the bottle was only half empty. It's not as smooth an install as you are led to believe. It is a good concept, but the pump bottle is cheaply made and does not hold up well to deliver all the product to the tires. It fatigues after around 50 - 60 pumps, and you wind up struggling to get the job done.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 31, 2023
    F
    Verified Purchase
    Frances
    Omaha, US
    ★★★★★ 5
    It did work
    Size: 1-Pack (32 oz)
    Sealed a small nail hole in a front tractor tire. Better than taking to shop for inside patch or making the 3x bigger for a rope patch.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    J
    Verified Purchase
    Jim
    Grantham, US
    ★★★★★ 5
    Fixed a Bead Sealing Issue
    Size: 1-Gallon (128 oz)
    For traction in snow, I recently installed new "agricultural" style lugged front tires on a Simplicity garden tractor from around 1980. The tractor looks like it's survived a war, evidently having had a hard life as a workhorse owned by a school district. The front rims are rusty, and I naively thought the beads of these thick tires would seal properly anyway. They didn't. The jug of sealant ships with a valve core removal tool. Removing and reinstalling the cores is a piece of cake if you've never done it. I pumped a generous amount of the product into each tire and then did a few fast laps in a grassy paddock. It's a Kohler 19HP twin and it's a bit of a rocket. 😎 One tire sealed, the other didn't, and there was still a faint hiss. I added more product to that side and repeated the process. It seemed to hold. The next day that side was flat again, so I added more sealant and this time it held. Based on this experience, I'd say that instead of strictly following what the instructions recommended as an amount per tire, keep adding product in increments until the tire holds air. It's good stuff and it works. Will the tire self-heal if I puncture it? I don't know yet. It saved me the headache of having to remount these small tires or install tubes.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 24, 2026

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