Active subwoofer amp designed for use in the car cabin floor TDA7294 2SC5200 and 2SA1943 used, but the addition of an integrated output power to the output of this circuit is upgraded patlaşıl previously had different PCB drawing ;... Electronics Projects, Active Subwoofer Amplifier Circuit TDA7294 VU Meter DC to DC Converters "audio amplifier circuits, dc dc converter circuit, ic amplifier, tda7294 amplifier circuit, tl494 circuit, " Date 2019/08/03