@snacks makes me appreciate how the drivers in my headphones are just PU foam sheets stuck to flex PCB coils. could literally refresh them for under 2 bucks

@snacks it’s actually better to use the lowest density foam you can get because you need it to be very flexible. at 3mm it doesn’t matter that it’s very porous

@snacks i assume the acoustic properties of low-density foam are also better because there’s less reflection

@snacks with the ploopy’s the helmholtz resonator actually does a lot of work in terms of acoustics. you don’t get sound quality like that with just digital filters

@snacks kinda funny that the most expensive part by far is the DAC PCB (which is cheap as far as quality DACs go), and it would be the case even if it were mass-produced and cost half as much

@snacks like, you can make the headphone parts out of recycled PET bottle filament, cut up tights and bare wires, and your only worry would be sourcing the right neodymium magnets

wouldn’t sound the same but you’d still get some pretty good headphones even though they’re made out of literal garbage