BUY CX7933 https://www.utsource.net/itm/p/1176160.html

The CX7933 is a 28-pin DIP (Dual Inline Package) integrated circuit manufactured by Sony. It is a monolithic linear IC that is designed for use in audio applications. Features: * Low distortion * Low noise * Low power consumption * High input impedance Applications: * Audio amplifiers * Audio mixing * Audio signal processing * Audio signal routing (For reference only)