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kattjakt

Re:Ask HN: Any Interesting Niche Hobbies? on Wednesday April 08, 2026 @04:16PM (#47695705)
I highly recommend getting into loudspeakers or audio reproduction in general! Without a doubt the most enjoyable, satisfying, and enriching hobby I've had so far.

A couple years ago I decided to build a pair of synergy horns (look them up!) which included all kinds of interesting stuff! For example, I had to learn CAD, the principles of CNC and how to create toolpaths, what a waveguide is, general woodworking, and lots more. There's also lots of interesting "subhobbies" one may dwelve into such as psychoacoustics, signal processing, LEM/BEM simulations, the optimization of horn geometries (look up AKABAK or Ath4 and their respective DiyAudio threads), analog crossovers, or acoustically treating a room to reduce reverb.

Building speakers and experimenting with bracing and lining/damping have been rewarding for me as determining wether I prefer A or B really requires me to _listen_ in a different way from say, listening to a conversation (or even to music!). It feels very grounding and meditative in a way, and at least in my case, indirectly trains one to notice and appreciate more sounds in everyday life.

A big bonus is that it becomes really easy to throw outdoor parties out in the woods when one doesn't have to rent gear. Loudspeakers and bringing people together is a damn good and rewarding combo.

Re:They don't make 'em like that any more: tone controls on Thursday September 18, 2025 @08:17PM (#45296576)
That's definitely a thing in portable speakers! In this case though the amplifier won't really know what it's powering, and different drivers have different sensitivity. The resulting volume will also be affected by the cabinet the driver sits in as well as the placement of the speaker in the room.
Re:Show HN: Giving a 2D grid a 3D look – part 4 on Sunday November 28, 2021 @02:12PM (#29371867)
I've actually made something quite similar a while ago which you might find interesting! 22 parameters plus a step by step visualization of how the scene is created "layer by layer" :)

https://kattjakt.github.io/mars-playground/