branson gcx ultrasonic generator circuits
technicalaudio.com has useful information relating to various technical aspects encountered in music and sound recording and production. there are links to some companies and people who often work together building and maintaining various gear and infrastructures that support these activities. this site would probably be at least marginally interesting to anyone working in music recording, production, and sound design as artists, producers, and engineers as well as studio techs and those doing audio diy
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