How to Build a DSP-Enabled Network Audio Amplifier with W5500 on Louder-ESP32-Pro?

Louder ESP32 Pro

viktor

Published July 28, 2026

168 UCC

20 WCC

42 VAR

Original author: sonocottaOriginal source (new tab)

Components

Hardware components

WIZnet - W5500

x 1

WIZnet parts

W5500 Datasheet

Project description

Summary Louder-ESP32-Pro is an ESP32-S3-based network audio and amplifier board designed to drive passive speakers while performing audio processing inside a TAS5825M smart amplifier. Its main audio path uses I2S for digital audio, I2C for amplifier control, and onboard DSP for equalization, dynamic-range control, limiting, and speaker protection. An optional WIZnet W5500 module adds wired Ethernet for installations where stable network streaming is preferable to Wi-Fi. What the Project Does The Louder-ESP32-Pro combines an ESP32-S3, external PSRAM, a TAS5825M digital-input Class-D…

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