NAD C 399 HybridDigital DAC Amplifier is the flagship model of NAD’s Classic series, built to deliver Masters-level performance and future-ready design in a powerful, integrated form. Featuring the advanced HybridDigital nCore amplifier and a reference-grade ESS Sabre 9028 DAC, the C 399 delivers a stunningly detailed and transparent soundstage. Its two MDC2 expansion ports support BluOS multi-room streaming and Dirac Live room correction, making it one of the most versatile and enduring amplifiers in its class.
| Amplification (Line In, Speaker Out) | |
|---|---|
| Continuous Output Power (8/4 Ohms) | 2 x 180W |
| THD (20Hz–20kHz) | <0.02% |
| Signal-to-Noise Ratio | >95 dB (A-weighted) |
| Clipping Power | 210W |
| IHF Dynamic Power | 8Ω: 217W, 4Ω: 400W, 2Ω: 506.4W |
| Peak Output Current | >26A |
| Damping Factor | >150 |
| Frequency Response | ±0.3 dB (20Hz–20kHz) |
| Channel Separation | >90 dB (1kHz), >75 dB (10kHz) |
| Input Sensitivity | Line: 201 mV, Digital: 10.25% FS |
| Preamplifier (Line In, Pre-Out) | |
| THD | <0.002% at 2V out |
| Signal-to-Noise Ratio | >106 dB (A-weighted) |
| Channel Separation | >100 dB (1kHz), >90 dB (10kHz) |
| Input Impedance | 56 kohms + 100 pF |
| Maximum Input Signal | >4.6 Vrms |
| Input Sensitivity | 65 mV |
| Frequency Response | ±0.3 dB (20Hz–20kHz) |
| Maximum Voltage Output | >>5V |
| Phono Input (MM) | |
| THD | <0.01% at 2V out |
| Signal-to-Noise Ratio | >84 dB (A-weighted) |
| Input Impedance | 46 kohms / 100 pF |
| Input Sensitivity | 1.08 mV |
| Frequency Response | ±0.3 dB (20Hz–20kHz) |
| Maximum Input Signal | >80 mVrms (1kHz) |
| Headphone Output | |
| THD | <0.005% at 1V out |
| Signal-to-Noise Ratio | >107 dB (32Ω load) |
| Frequency Response | ±0.3 dB (20Hz–20kHz) |
| Channel Separation | >62 dB (1kHz) |
| Output Impedance | 2.2 Ohms |
| General | |
| Supported Sample Rate | Up to 24-bit / 192 kHz |
| Bluetooth Frequency Band | 2.402GHz – 2.480GHz |
| Max Bluetooth Transmit Power | 7 dBm ± 2 dBm |
| Dimensions | |
| Net Dimensions (W x H x D) | 435 x 120 x 390 mm |
| Net Weight | 11.2 kg |