For the amplifier circuit, I spent a couple of weeks researching and evaluating possibilities and settled on the EAUMT-0050-2-A class-D amplifier board from 3e Audio, in Shenzhen City, China.

You're welcome.Īn audio amplifier has two basic components: a power supply and an amplifier circuit. But if your heart's desire is maximum fidelity per unit cost, a better strategy is to carefully choose amplifier modules and other components from among the huge array of fine options that are readily available. Should you decide to go this route I salute you, and suggest you start with Cezar Chirila's excellent article on the All About Circuits website.

There are many class-D amplifiers on the market now, and the best of these are dominating the upper reaches of the high end.ĭesigning and building a class-D amp from scratch is a laudable undertaking. Nobody is having those arguments anymore. Learn more → Join the world’s largest professional organization devoted to engineering and applied sciences and get access to all of Spectrum’s articles, archives, PDF downloads, and other benefits. Join the world’s largest professional organization devoted to engineering and applied sciences and get access to all of Spectrum’s articles, podcasts, and special reports. For more exclusive content and features, consider Joining IEEE. Enjoy more free content and benefits by creating an account Saving articles to read later requires an IEEE Spectrum account The Institute content is only available for members Downloading full PDF issues is exclusive for IEEE Members Access to Spectrum's Digital Edition is exclusive for IEEE Members Following topics is a feature exclusive for IEEE Members Adding your response to an article requires an IEEE Spectrum account Create an account to access more content and features on IEEE Spectrum, including the ability to save articles to read later, download Spectrum Collections, and participate in conversations with readers and editors.

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