Tech Ingredients
2 HN recommenders · recommended in 4 months, 2018–2023
31:06 · 2.2M views · Jan 30, 2018
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.
4 comments from Hacker News
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.
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
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
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.