The NAD C 399 HybridDigital DAC Amplifier is the flagship of the brand’s Classic Series integrated amplifiers, legendary since 1972 for blending technical sophistication with unparallelled value. The C 399is the first Classic Series device to benefit from the nCore amplification platform used in the Masters Series and is also the first to carry the MDC2 platform to ensure lasting performance.

FEATURES

HybridDigital 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 Hi-Res multi-room music streaming and Dirac Live room correction
Jitter-free 32-bit/384kHz ESS Sabre DAC (same as in C 658, M10 V2, M33: ES9028)
Ultra-low-noise MM phono stage with infrasonic filtering circuitry
Two optical, two coaxial digital input
HDMI-eARC input
Two pairs of line-level analogue inputs with low-noise buffer amplifier
Speaker A/Speaker B output
Two-way Qualcomm aptX HD Bluetooth
Dual subwoofer output
Dedicated headphone amplifier
CI-Friendly – IR remote, 12V Trigger in/out, IR in/out, RS-232 Serial port
Seamless integrations with Control4, Crestron, RTI, URC, Lutron, iPort and Elan smart home control systems

BluOS FEATURES

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 MDC2 BluOS-D module will include a license for Dirac Live with the option for advanced users to upgrade to a Dirac Live Full Frequency version

TECHNICAL SPECS

LINE INPUT, PRE-OUT (ANALOG BYPASS ON)
THD (20Hz – 20kHz) <0.002% at 2V out
Signal-to-Noise Ratio >106dB (IHF; A-weighted, ref. 500mV out, unity gain)
Channel separation >100dB
(1 kHz) >90 dB (10 kHz)
Input Impedance (R and C) 56 kohms + 100 pF
Maximum input signal >4.6Vrms (ref. 0.1% THD)
Output impedance Source Z + 320 Ohm
Input sensitivity 65mV (ref. 500mV out, Volume maximum)
Frequency response ±0.3dB (20Hz – 20kHz)
Maximum voltage output -IHF load >5V (ref. 0.1% THD)
PHONO INPUT, PRE-OUT (ANALOG BYPASS ON)
THD (20Hz – 20kHz) <0.01% at 2V out
Signal-to-Noise Ratio >84dB (200 Ohm source; A-weighted, ref. 500mV out)
Input sensitivity 1.08mV (ref. 500mV out, Volume maximum)
Frequency response ±0.3dB (20Hz – 20kHz)
Maximum input signal at 1kHz >80mVrms (ref. 0.1% THD)
LINE INPUT, HEADPHONE OUT (ANALOG BYPASS ON)
THD (20Hz – 20kHz) <0.005% at 1V out
Signal-to-Noise Ratio >107dB (32 Ohms loads; A-WTD, ref. 2V out, unity gain)
Frequency response ±0.3dB (20Hz – 20kHz)
Channel separation >62dB at 1kHz Output impedance 2.2 Ohms
LINE IN, SPEAKER OUT (ANALOG BYPASS ON)
Continuous output power into 8 ohms and 4 ohms 180W (ref. 20 Hz-20 kHz at ratedTHD, both channels driven)
THD (20 Hz – 20 kHz) <0.02% (250 mW to 180 W, 8 ohms and 4 ohms)
Signal-to-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
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
DIMENSIONS AND WEIGHT
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)