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Re:Low THD PWM audio amp, DIY friendly by amelius on Sunday January 15, 2023 @01:23AM (#34387197)
Perhaps it's a measure against failure? Do these capacitors fail open?

Or price, although that would raise new questions. Another is availability of components. Or perhaps the form factor (these capacitors seem slightly less tall than the ones on the other board in the picture).

Re:Low THD PWM audio amp, DIY friendly by klodolph on Sunday January 15, 2023 @06:03AM (#34388520)
Designing for failure seems unlikely here. I think they just wanted lots of capacitance and a low ESR. Lots of capacitors is a cheap way to get that.