TDA1514 stereo previously had shared 2 × 50 amp circuit, see: TDA1514A high performance HiFi 2X50W amp circuit This circuit can be used for single-channel 50w output printed circuit sizes quite small and symmetrical placement of smooth supply voltage... Electronics Projects, 50W Amplifier Circuit TDA1514 "audio amplifier circuits, ic amplifier, " Date 2014/06/22