The Sony TA-N 86 B is a power amplifier that was produced in the 1980s as part of Sony's component audio systems. It features a robust, discrete design and is targeted primarily at home audio applications, providing flexibility in various setups. The amplifier is characterized by its high power output, delivering around 100 watts per channel into 8 ohms and approximately 160 watts into 4 ohms. It includes a wide frequency response, typically extending from 20 Hz to 20 kHz, ensuring that it can reproduce a range of audio frequencies with clarity. The construction includes large heat sinks for effective thermal management and a solid build quality that enhances durability. The TA-N 86 B operates in both stereo and monaural modes, giving users options for configuration based on their needs. Input options include RCA connectors, making it compatible with most audio sources. Additionally, it is designed with various protective circuits to prevent damage from overcurrent, overheating, and speaker short circuits, enhancing its longevity and reliability in audio setups.