La4440 Subwoofer Circuit Diagram Pdf Download ((new)) May 2026

The (often referred to as CD4440) is a legendary monolithic dual-channel audio power amplifier IC from Sanyo, widely celebrated in the DIY community for its high-fidelity sound and robust protection features. While a single IC provides a clean 6W+6W stereo output , its true power for a subwoofer application is unlocked in Bridge Tied Load (BTL) mode , where it can deliver up to 19 Watts of deep, distortion-free bass. Why Use LA4440 for Subwoofers?

To build a dedicated subwoofer amplifier, the IC is typically wired in a bridge configuration. You can find detailed LA4440 Circuit Board Layouts online for PCB fabrication. la4440 subwoofer circuit diagram pdf download

Using the LA4440 Bridge Amplifier configuration is ideal for subwoofers because it increases the output power significantly and offers several built-in safety mechanisms: The (often referred to as CD4440) is a

The IC maintains low harmonic distortion across a wide frequency range (20Hz to 20KHz), ensuring clean bass reproduction. To build a dedicated subwoofer amplifier, the IC

A typical 46dB ripple rejection helps eliminate hum or noise from the power supply. LA4440 Subwoofer Circuit Diagram & Components

Delivering 19W in bridge mode is sufficient to drive woofers up to 12 inches for home or car audio setups.