The Sansui AU-X 701 is an integrated amplifier manufactured between 1987 and 1990 in Japan. This model features a distinct black piano finish and offers various connectivity options, including six line inputs, one adapter input, and one phono input suitable for both moving magnet (MM) and moving coil (MC) cartridges. It has the capability to drive two pairs of speakers and includes a headphone output. The AU-X 701 has a powerful performance, with a continuous power output of 2x100 W at 8 Ohms and 2x120 W at 4 Ohms. The impulse power ratings are impressive as well, with 2x175 W at 8 Ohms and up to 2x320 W at 2 Ohms. Distortion remains low with a total harmonic distortion of just 0.005%. The frequency response ranges from 1 Hz to 300 kHz, and it boasts a signal-to-noise ratio of 110 dB for line inputs. Tone control is available, featuring adjustments for bass and treble of +/- 5 dB. The integrated amplifier also includes a loudness function that enhances lower frequencies. Additional features include a low filter for subsonic frequencies and a direct/line-straight switch for unaltered signal output. With a power consumption of up to 720 W, the AU-X 701 has dimensions of 448 x 160 x 441 mm and weighs approximately 17.1 kg. This combination of specifications suggests a focus on delivering high-quality audio performance while providing flexibility in terms of input sources and sound customization.