BUY STK402-270 https://www.utsource.net/itm/p/1274262.html
Three-Channel Class AB Audio Power Amplifier IC 40 W + 40 W + 40 W
Description: SIP-ZIP, SANYO Features: 2-Channel Audio Power Amplifier Output Power: 2 x 25W (8Ω) Low Distortion Low Noise High Efficiency Low Power Consumption High Reliability Small Package Applications: Home Audio Systems Car Audio Systems Portable Audio Systems Professional Audio Systems Musical Instruments Audio Mixers (For reference only)