BUY AN7550NZ https://www.utsource.net/itm/p/980400.html

Description: The AN7550NZ is a monolithic integrated circuit designed for use in audio power amplifiers. Features: High output power: 2 x 25W (8Ω) Low distortion: 0.2% (1kHz, 8Ω, 25W) Low noise: -90dB (A-weighted) High efficiency: 80% Low quiescent current: 20mA Low standby current: 0.5mA Standby switchable Thermal protection Applications: The AN7550NZ is suitable for use in audio power amplifiers, such as car audio systems, home audio systems, and portable audio systems. (For reference only)