4440 AMPLIFIER BOARD WIRING DIAGRAM
LA4440 amplifier circuit in Bridge mode – Circuits DIY
Sep 20, 2017You can modify most readymade amplifier kit to LA4440 bridge amplifier circuit by simply cutting some PCB tracks and adding some jumpers, but that may vary board to board. The image clearly shows, that a ripple rejection B.E choke transformer is added in series to the +ve supply. This is required in every audio amplifiers as any ripple in DC can cause unwanted noise.