This circuit uses an LA4440 and some supporting components to give you much more power, while retaining a small package that you can use. The IC is a dual channel audio power amplifier, with low ...

It turns out, this is a pretty little BTL (bridge tied load) mini subwoofer power amplifier circuit which’s quite capable of producing a sensible bass kick on the car subwoofer. In this bridge ...

The SA-150 uses a Sanyo LA4440 amplifier chip. After downloading the spec sheet from www.datasheetarchive.com I found out the chip could deliver 19W in bridging mode instead of the as-designed 6W. And ...