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Tech Ingredients · tutorial · Watch on YouTube

Audio & video engineering3D printing, CNC & maker projects

What it is

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.

Why Hacker News recommends it

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

  • 3 people recommended it
  • 3 different months
  • 1 strong recommendations
  • first 2020, last 2025

What HN commenters said

  1. “I built my own speakers for under $200 and I honestly think they are some of the best I've ever heard for a personal setup.”

    Foam board speakers that sound excellent for under $200.

    fasteddie31003, 2022-09 · Strong recommendation · in ““Secrets” about the consumer audio business you may find interesting”

  2. “If you want an affordable, good sounding speaker that you can build yourself, you might wanna take a look at Tech Ingredients”

    Affordable, good-sounding speakers you can build yourself.

    sandreas, 2023-06 · Recommendation · in “Classic components could be replaced by rubber in next-gen loudspeakers”

  3. “attaching $6 bass kickers to XPS foam to make flat panel speakers about as good as expensive bookshelf speakers”

    Flat panel speakers from $6 bass kickers on XPS foam.

    westurner, 2025-01 · Recommendation · in “Show HN: Design/build of some parametric speaker cabinets with OpenSCAD”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: flat panel speakers, exciters, audio, foam board, diy

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