Nad C 399

As the new flagship of NAD’s Classic series of integrated amps, the C 399 HybridDigital DAC Amplifier takes NAD’s commitment to lasting value and sonic excellence to a whole new level.

The C 399 employs NAD’s Hypex HybridDigital nCore amplifier circuitry, which until now has been available only on Masters Series amplifiers. Its digital section is built around a 32-bit/384kHz ESS Sabre DAC, the same chip used in NAD’s acclaimed M10 and M33 Masters Series amplifiers.

The C 399 is the first amplifier to incorporate the latest generation of NAD’s Modular Design Construction (MDC) technology. MDC2 lets users add optional modules that provide functions such as BluOS multi-room music streaming and Dirac Live room correction.

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 

• 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