The Sansui AU-D 707 X is an integrated amplifier that belongs to the X-Balance Series, manufactured in Japan between 1984 and 1986. It features a stylish design available in black or silver and is equipped with a remote control. The amplifier employs an advanced X-balanced configuration that enhances its audio performance by integrating balanced inputs and outputs, alongside a balanced power supply for reduced distortion and improved sound quality. This model has a power consumption of 320 W and is capable of driving speakers with impressive output power ratings: 130 W per channel at 8 Ohm, 150 W at 6 Ohm, and 200 W at 4 Ohm, all while maintaining low total harmonic distortion (THD) at 0.003%.
The amplifier also features a wide frequency response of 20 Hz to 300 kHz with a deviation of ± 0.2 dB, making it capable of reproducing a broad range of audio signals with clarity and precision. For inputs, it supports two MM phono inputs, high and low MC phono inputs, CD, tuner, and auxiliary connections, with adjustable sensitivity levels for optimal performance.
The tone control allows for customization of bass and treble with ± 10 dB adjustments, further enhancing user experience with multiple crossover frequency options. Additional features include a subsonic filter, loudness control, and audio muting capabilities. The amplifier is built with high-quality components, employing toroidal transformers and specialized capacitors designed for excellent transient response.
With dimensions of 466 x 161 x 431 mm and a weight of 17.5 kg, the Sansui AU-D 707 X is both a powerful and elegant addition to any audio setup, offering a blend of advanced technology and aesthetic appeal.