Our Take
The NAD C 328 Hybrid Digital DAC Amplifier embodies NAD's 45-year legacy of introducing hi-fi enthusiasts to high-quality audio components. From the premium Masters Series to the budget-friendly Classic Series, NAD offers a wide range of products, and the C 328 upholds this tradition with its combination of essential features and NAD's dedication to superior sound quality. The C 328 connects wirelessly to any Bluetooth®-enabled device, including smartphones and tablets, ensuring a seamless listening experience. It features an MM phono input, revitalizing vinyl playback through NAD’s innovative Hybrid Digital™ amp technology. With an integrated headphone amplifier, users can connect their preferred headphones for an immersive and detailed sound experience. The C 328, while compact compared to other models, integrates seamlessly into existing systems, delivering exceptional audio quality.
Product Details
Getting the Basics Right
NAD leaves no detail overlooked in its Classic Series amplifiers. The C 328 showcases low-noise circuits, precise volume control, and accurate channel balance, essential characteristics for audiophiles building their dream system. It also features appropriate input and output impedance, high overload margins, and stability with difficult speaker loads. The MM phono stage offers correct RIAA equalization, high overload margins, and low noise, with an innovative circuit to suppress infrasonic noise without affecting bass response.
Versatility
The C 328’s line inputs support a variety of analogue sources, with linear, ultra-low-noise buffer amplifiers preventing any degradation in sound quality. The dedicated headphone amplifier provides low output impedance and high output voltage, capable of driving high-impedance studio headphones. The low-impedance line outputs allow for subwoofer connections, further enhancing the amplifier’s versatility.
Streaming Ready
Bluetooth support means you can stream music and playlists directly from smartphones, tablets, or computers, connecting instantly to enjoy your favorite music services. Thanks to its high-performance digital circuitry, Bluetooth streaming with the C 328 offers exceptional sound quality.
Sophisticated Power
NAD has moved beyond traditional linear power supplies and Class AB output stages, opting instead for more efficient switch mode power supplies and Class D output stages. Once thought to be inferior to conventional designs, NAD’s advancements in this field have resulted in some of the best amplifiers available today, offering consistent linear performance across a broad bandwidth and across all speaker loads.
The C 328’s power supply can deliver over 100 watts of audio output when necessary and operates on any AC mains voltage from 100V to 240V. This efficient power supply ensures near-perfect voltage regulation under various conditions, providing a stable, noise-free foundation for the amplifier.
The C 328 uses a customized version of the proven Hypex UcD output stage, enabling it to deliver massive power with virtually immeasurable distortion and noise within the audible range. Every element of the design has been carefully optimized to maximize performance. The C 328 is the perfect starter amplifier for both audiophiles and music lovers, offering NAD’s signature flexibility and powerful output.
Tech Specs
| THD (20 Hz – 20 kHz) | <0.03 % (100 mW to 40 W, 8 ohms and 4 ohms) |
| Signal-to-Noise Ratio | >95 dB (A-weighted, 500 mV input, ref. 1 W out 8 ohms) |
| Frequency Response | ±0.3 dB (20 Hz – 20 kHz) |
| ECO Standby Mode | 0.5 Watts* |
| Control Standby Mode | 0.6 Watts** |
| OFF Mode (Power Switched OFF) | 0 Watts |
| Note | * After 20 minutes of no user interaction and no active source input. ** With established wireless Bluetooth connectivity and 20 minutes of no user interaction and no active source input. Bluetooth connectivity is always live when configured. |
| Gross Dimensions (W x H x D) | 435 x 70 x 285 mm (17 1/8 x 2 13/16 x 11 1/4″) |
| Net Weight | 4.9 kg (10.8 lbs) |
| Shipping Weight | 5.9 kg (13.0 lbs) |
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