The Sansui C-2105 is a stereo preamplifier recognized for its solid construction and rich sound quality. It features a sleek design with a brushed aluminum front panel, providing both aesthetic appeal and durability. The unit is equipped with multiple input options, allowing for the connection of various audio sources, including turntables, CD players, and other components. The C-2105 includes tone controls for adjusting bass and treble frequencies, as well as a loudness button for boosting lower-level signals. Additionally, it has a separate power supply to minimize noise and interference. The output stage of the C-2105 is engineered to deliver a clean audio signal to the power amplifier. Overall, the Sansui C-2105 is designed for users seeking quality sound reproduction and versatility in their audio setups.