The Sansui AU-α 707 KX is an integrated amplifier that was part of Sansui's high-performance AU series, blending advanced technology with a focus on audio fidelity. It features a power output of 100 watts per channel into 8 ohms, facilitating dynamic sound reproduction suitable for various audio environments. The amplifier incorporates multiple inputs for versatility, including phono, line, and tape, allowing users to connect different sources with ease. Additionally, the AU-α 707 KX includes a built-in equalizer and tone controls that enable users to fine-tune their listening experience. The design showcases a robust build quality, characterized by a stylish aluminum front panel and solid chassis that contributes to reduced resonance and improved sound clarity. Its signal-to-noise ratio is impressive, measuring around 110 dB, which helps to minimize background noise and enhance audio detail. The amplifier also supports A/B speaker switching, facilitating connection to multiple sets of speakers, and is compatible with various impedances. Overall, the Sansui AU-α 707 KX represents a significant achievement in integrated amplifier design, delivering powerful performance and versatility for audio enthusiasts.