If you want build hi-fi power amplifier about 30watt to 50Watt or 75 watt. Recommend use TDA2050 below, builds by the i… | Diy amplifier, Amplifier, Audio amplifier
PCB power amplifier stereo TDA2050 | Shopee Indonesia
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tda+2050+amplifier - Search - EasyEDA
70W Stereo HI-FI Power Amplifier - High Fidelity with two TDA2050 + PCB