Resource
Elliott Sound Products
Australian DIY-audio and electronics resource publishing circuit explanations, schematics and projects, with PCBs sold for selected designs. Rod Elliott’s stated approach emphasizes measurements, controlled listening tests and buildable circuits, while the library extends from amplifiers and crossovers to studio equipment, speakers and general electronics.
About this resource
Elliott Sound Products, or ESP, is an Australian DIY-audio and electronics site associated with Rod Elliott. Its main index links a substantial library of projects and explanatory articles, with printed circuit boards offered for selected designs. Coverage includes power amplifiers, preamplifiers, guitar and bass electronics, studio equipment, effects, loudspeakers, subwoofers and test-related material. [1] [2]
The editorial philosophy emphasizes evidence from measurements and double-blind listening rather than unsupported claims about component sound. Elliott also describes aiming for circuits simple enough for hobbyists to build and troubleshoot. This makes the resource both a construction library and a technical reading site: the project explanations describe how circuits work, while broader articles cover electronics theory, power supplies, measurement and beginner topics. [1] [2]
The project list and numbered quick-access links are useful for finding a build, while the articles index provides background before construction. The site distinguishes freely readable material from additional construction information supplied with PCB purchases; free access does not mean public-domain content. Its homepage currently carries a notice that orders cannot be shipped to the United States, dated August 2025. US visitors can still use the educational material, but should not assume PCB delivery is available. [1] [2]
Verification sources
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