TDA7294 Amplifier integrated in many devices are used by different companies big small popular brands of TDA7294 have sound systems based on many people engaged in electronics with this integrated amplifier circuit. In practice TDA7294 output 2SC5200, powered by 2SA1943 Power transistors. There are schema, layout and pcb drawings of the circuit.
Application pictures of TDA7294 Amplifier circuit;
PCB operation similar to the first picture