Sophisticated Power
Since moving away from old-fashioned linear power supplies and Class AB output stages, NAD has developed even better performing circuits based on switch mode power supplies and Class D output stages. Once thought to be inferior to traditional topologies, NAD’s advanced work in this area has led to some of the best performing amplifiers on the market today. These new designs are linear over a wide bandwidth and provide consistent performance into all speaker loads, delivering a dramatic advancement.
The power supply of the C 328 is able to provide over 100 watts of audio output when needed. The C 328 can operate with any AC mains voltage from 100V to 240V and provides pure DC power to all of its various stages. This extremely efficient supply also provides near perfect regulation of voltage across a wide range of conditions and provides a solid noise-free foundation for the amplifying stages.
The C 328 uses a customised version of the proven Hypex UcD output stage. This allows for massive power with nearly immeasurable distortion and noise in the audible range. Every detail of this design has been carefully crafted and perfectly executed to wring out the best performance possible. The perfect starter amp for audiophiles and music lovers alike, the C 328 will flawlessly deliver NAD’s signature flexibility and expansive power.
Analogue In/Headphone Out
- Continuous output power into 8 Ohms
and 4 Ohms - 50W (ref. 20 Hz-20 kHz at rated THD, both channels driven)
- THD (20 Hz – 20 kHz)
- <0.005 % at 1 V out
- Signal-to-Noise Ratio
- >100 dB (A-weighted, 32 ohms, ref. 2V out, unity gain)
- Frequency response
- ±0.3 dB (20 Hz – 20 kHz)
- Output impedance
- 11 ohms
Analog In/Subwoofer Out
- THD (20 Hz – 20 kHz)
- <0.005 % at 1 V out
- Signal-to-Noise Ratio
- >100 dB (A-weighted, 32 ohms, ref. 2V out, unity gain)
- Frequency response
- ±0.2 dB (20 Hz – 20 kHz)
- Output impedance
- 200 ohms
Analog In/Speaker Out
- 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)
Phono In/Speaker Out
- THD (20 Hz – 20 kHz)
- <0.03 % (200 mW to 40 W, 8 ohms and 4 ohms)
- Signal-to-Noise Ratio
- >75 dB with IHF MM cartridge (A-weighted, ref. 5mV input 1 kHz and 1W output in 8 ohms)
- Frequency response(RIAA deviation)
- ±0.3 dB (20 Hz – 20 kHz)
Note:The RIAA response is consistent with a pre-emphasis that is rolled off at 50kHz by a second order filter, such as used in Neumann cutting lathes.
Power consumption
- at ECO Standby mode
- 0.5 Watts*
- at Control Standby mode
- 0.6 Watts**
- OFF mode (Power switched OFF)
- 0 Watts
* – After 20 minutes of no user interface interaction and no active source input
** – With established wireless Bluetooth connectivity and 20 minutes of no user interface interaction and no active source input
NOTE: Bluetooth connectivity is always live when configured.
Dimensions & Weight
- 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)
