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How to Build Flat-Panel Speakers from Exciters and Foam Board

Tech Ingredients · Tutorial · YouTube title: World’s Best Speakers!
Why it's here

HN commenters point to it as a build guide for cheap DIY speakers that sound as good as expensive ones.

What it covers

Tech Ingredients shows how to build flat panel speakers from exciters and foam board, with construction guidelines, measured SPL comparisons and a complete system playing music.