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.

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