BUY M57918L-02 https://www.utsource.net/itm/p/1536203.html
HYBRID IC FOR DRIVING TRANSISTOR MODULES
M57918L-02 is a ZIP-6 integrated circuit manufactured by MIT. It is a low-power, low-voltage, low-noise, low-distortion amplifier. It is designed for use in audio applications such as portable audio players, car audio systems, and home theater systems. It features low distortion, low noise, low power consumption, and wide dynamic range. It also has a high slew rate and low output impedance. The M57918L-02 is suitable for use in both single-ended and differential audio applications. It is also suitable for use in power amplifiers, preamplifiers, and other audio applications. (For reference only)