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Fantastic DIY Speakers for less than $30!

Tech IngredientsRecommended by 2 HN commenters across 2 months, 2018–2023
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tutorial · intro · evergreen · 2018–2023 on HN

Tech Ingredients shows how to build cheap, high-performance flat-panel speakers using audio exciters on sheet materials such as foam-core board. It explains how distributed-mode speakers work and walks through experiments to find good designs.

Pointed to by hobbyists interested in building flat-panel DIY speakers from cheap materials.

Audio & video engineering3D printing, CNC & maker projects#diyaudio#exciters#distributedmodeloudspeakers#foamcore

4 comments from Hacker News

@staindk2022-04 · in “MIT researchers develop a paper thin loudspeaker”

Yeah was going to say, this reminded me of this[1] video (series of videos actually, but this is the first in the series). Interesting stuff. [1] ▶ this video

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@linsomniac2018-11 · in “Build Your Own Professional-Grade Audio Amp on the Sort-Of Cheap”

I kind of want to build one of these amps and connect it to a set of speaker built with these cheap exciters... One of the Youtube channels I follow messed around with them link but he got that from this other video ▶ this video where he goes into all sorts of experiments he ran on the exciters to find the right design.

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@linsomniac2023-11 · in “Ask HN: Comment here about whatever you're passionate about at the moment”

What sort are you thinking about building? I keep toying with building either the flat panel speakers made out of foam-core board from Tech Ingredients on YouTube, or the big giant speakers he made. ▶ this video link edited: Thought DIY Perks did the big speakers, found them on Tech Ingredients.

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@stcredzero2018-09 · in “E-Ink Monitors: Ready for Prime Time?”

A 40 Hz model is already down to $1000. We may be on the cusp of some kind of sea change here. How insanely light could an E-Ink flatscreen monitor get? You don't need a backlight, so the power requirements would be much smaller and that would be a huge advantage to making something light. I could imagine an updated version of a "Sunflower" iMac built using one. MacOS resembling a magazine seems to be what Steve Jobs envisioned and what Apple is aiming for right now. Could they be made in such a way as to resemble good sheet material for acoustic exciters? ▶ this video

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