Audio Segment

NAD 160

The NAD 160 is a solid-state stereo receiver from the mid-1970s, known for its classic design and warm, natural sound. It offers a clean front panel with straightforward controls, reliable tuner performance, and a respectable power output suitable for a wide range of speakers. A favorite among vintage audio enthusiasts, it's admired for its understated style and musical character.

General Specifications

Maximum power (8Ω): 45W
Frequency response (±0.5dB): 20Hz-20kHz
THD: 0.3%
IMD: 0.4%
Signal to noise ratio (Line): 80dB
Signal to noise ratio (Phono): 60dB
Input sensitivity (Line): 140mV
Input sensitivity (Phono): 2.2mV
Damping factor: 45
Speaker load impedance: 8Ω-16Ω

Dimensions (WHD): 450×140×360mm
Weight: 16kg
Produced: 1974-1975
Initial price: 1498DM

Measured Values

Maximum power (8Ω): 60W
Frequency response (20Hz-20kHz): <1.5dB
Channel imbalance: <0.7dB
THD (1kHz, 1W): 0.012%
THD+N (1kHz, 1W): 0.11%
THD (1kHz, 20W): 0.013%
THD+N (1kHz, 20W): 0.082%
IMD (70Hz, 5kHz, 1W): 0.031%
Noise: -59.6dB
Amplification: 134.1
DC offset L: -1.2mV
DC offset R: 1.1mV

Maximum Power

Maximum power is measured using 8Ω resistors on both channels. A 1kHz sine wave input signal is applied and gradually increased until higher harmonics rise significantly. Typically, this is the point at which output clipping occurs.

Frequency Response

Frequency response is measured using several equilizer settings. 'Flat' indicates the tone controls are either turned off or set to their neutral position. 'Max' and 'Min' refer to the maximum and minimum tone control positions, respectively. In the phono section, the expected response follows the RIAA equalization curve.

Residual Noise

These graphs display the noise levels at various volume positions. To eliminate any interference from the input signal, the input lines are shorted during the measurement. Generally, the noise is highest at the mid-point of the volume range (50%)

Distorsion

Total harmonic distortion (THD) is measured using a 1kHz sine wave input, with the output level adjusted to meet different conditions. Intermodulation distortion (IMD) is measured using 'two sine' input signal. THD versus voltage is measured with a 1kHz sine wave input, while THD versus frequency is measured at various output levels.