The Sansui B-2102 is a power amplifier that was part of Sansui's product line during the 1980s. This model employs MOSFET technology, which is known for its capability to provide high efficiency, low distortion, and a wide frequency response. The B-2102 is designed to deliver a powerful output while maintaining sound clarity across various audio frequencies. Its output performance is typically rated at around 100 watts per channel into 8 ohms, and it can drive loads down to 4 ohms with increased power output. The amplifier features a classic, sturdy build quality with aesthetically pleasing design elements that appeal to audio enthusiasts. In terms of specifications, the input sensitivity is usually around 1V, with a signal-to-noise ratio exceeding 100 dB, which ensures a quiet background for playback. Additionally, it includes various input options including RCA connectors for easy integration into an audio system. Overall, the B-2102 is appreciated for its musicality and reliability in various audio setups.