What is TA7359P?

This is Audio Dual Preamplifier.

An audio power amplifier is an electronic device that amplifies low-power audio signals to a higher power level, suitable for driving speakers or other types of loads. The amplifier takes an input signal, typically from a preamplifier or a mixer, and increases its power to drive the loudspeakers, without distorting the sound. The choice of amplifier class depends on the application and the requirements of the system.