18 W hi-fi amplifier and 35 W driver The TDA2030A is a monolithic IC in a Pentawatt package intended for use as a low-frequency class-AB amplifier. With VS max = 44 V it is particularly suited for more reliable applications without regulated supply and for 35 W driver circuits using low-cost complementary pairs Features Output power 18 W at VS = 16 V / 4 with 0.5% distortion High output current Very low harmonic and crossover distortion Short-circuit protection Thermal shutdow Referensi: http://atoomnet.net/tda2030a-amplifier-diy-kit-schematic-and-soldering-howto/