NAD is a brand that specializes in high-fidelity audio equipment and electronics.

The NAD 3140 is an integrated amplifier that debuted in 1980. It is often compared to the NAD 3020, with both amplifiers sharing a similar preamp section, but the 3140's design is more complex and robust. The amplifier is rated at 40 watts per channel into an 8-ohm load, but its dynamic power and ability to drive lower impedance loads effectively give it the performance equivalent to 80-100 watts per channel. The NAD 3140 includes a unique Bass EQ circuit which allows for a +12dB boost at 45 and 70 Hz, enhancing the bass response for smaller speakers. It also features an infrasonic filter, mono switch, loudness filter, and a low-level mode that reduces gain by 20 dB. The amplifier is equipped with LED indicators for power output and offers various connectivity options, including two phono inputs, tape loops, and the ability to be bridged for mono operation. It boasts a claimed damping factor of 100 and has a solid build, weighing just under 8 kg (17 lbs). Its sound signature is characterized by a warm high range, punchy bass, and a broad soundstage, making it suitable for a variety of music genres. Despite its strengths, the 3140 can become hot when pushed hard, but it includes thermal protection features. As an older model, it may require servicing or recap depending on condition. Prices for the NAD 3140 typically range from 150 to 250€, depending on its condition and maintenance history.

3140

by NAD

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