Resource
Humble Homemade Hifi
Independent Dutch DIY loudspeaker resource offering measured kits, crossover design and assembly, and downloadable cabinet drawings.
Verification sources
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British full-range driver maker offering official horn-speaker cabinet plans and matched DIY kits for home builders.
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Canadian loudspeaker-parts supplier offering designed speaker kits, crossover components, subwoofer kits, and cabinet plans or flat packs.
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