NAD 160
The NAD 160 is a solid-state stereo receiver from the mid-1970s. At that time, the company used the full name New Acoustic Dimension, written in a Marantz-like font on the front panel.
The power amplifier is based on 2SD339 output transistors in a quasi-complementary configuration. Two pairs of speakers are supported, and protection is provided by 4A fuses in series with the outputs. The power supply uses two 8000µF filter capacitors.
The tuner section uses a 4-gang tuning capacitor and a fully discrete design, except for the TA7061 FM-IF amplifier IC.
The NAD 160 features a vintage silver design and a warm, pleasant sound character. On the faceplate, there are Tape In and Tape Out connectors, which can still be useful today.
Manufacturer: NAD
Status: Active company
Official website: nadelectronics.com
General Specifications
Maximum power (8Ω): 45WFrequency 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): 60WFrequency 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
Factory Specification Sheet
Factory specification images are sourced directly from the device's original service manual or user manual. These documents are produced by the manufacturer and provide authoritative information on the product's specifications.
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.
