LA4440 Stereo Amplifier Circuit - ElectroSchematics LA4440 is a two channel audio power amplifier IC with inbuilt in dual channels enables it for stereo and bridge amplifier applications. In dual mode it gives 6 W per channel and in bridge mode 19 W output. Simple Amplifier Circuit-19 Watts using LA4440 IC from Sanyo 19 Watts Simple Amplifier Circuit. This is a 19-watt simple amplifier circuit diagram using IC LA4440 from Sanyo. It uses very fewer components other than the IC LA4440. A very high-quality circuit with respect to its cost and ideal for beginners. Here IC LA 4440 is wired as a bridge amplifier to deliver a 19 W RMS on a 4 Ohm speaker. John Deere 4440 Wiring Diagram - schematron John Deere 4440 Wiring Diagram. 01 01 5 Comments on John Deere 4440 Wiring Diagram. for a JD I am redoing my wiring and one of these would definte. John Deere Tractors >. JD Just wondering if anybody has come across a functional lighting schematic for a JD I am redoing my wiring.