4 ms·

To give some context, All of this stuff is actually easy to build: 41Hz Amp32, energy-efficient 2x25W hifi amp, sounds amazing, 17 grams, fits in a matchbox wit

To give some context, All of this stuff is actually easy to build: 41Hz Amp32, energy-efficient 2x25W hifi amp, sounds amazing, 17 grams, fits in a matchbox with room to spare: http://shop.41hz.com/shop/item.asp?itemid=38 http://shop.41hz.com/shop/item.asp?itemid=38 41Hz Amp4, similar but higher power and sounds ridicullusly good - looks like a hard SMD build maybe, but absolutely isn't: http://shop.41hz.com/shop/item.asp?itemid=6 http://shop.41hz.com/shop/item.asp?itemid=6 41Hz PS4, tiny switching voltage regulator - modern 780x/LM317 replace ent that is 90% power efficient and can handle a ~90V in/out differential: http://shop.41hz.com/shop/item.asp?itemid=317&catid= http://shop.41hz.com/shop/item.asp?itemid=317&catid= GrubDAC, pretty small and nice usb powered audio out: http://diyforums.org/GrubDAC/GrubDACoverview.php http://diyforums.org/GrubDAC/GrubDACoverview.php None of them are really feasible through-hole; Similar is possible but noticeably bigger and less performant. (Not affiliated with any vendors listed above, no commercial interest, just like the stuff.)

AnthonBerg 14y ago
The editing of the jumble up above was precluded by the HN anti-procrastination feature kicking in. Here it is - along with my apologies - in a more presentable form: — 41Hz Amp32, energy-efficient 2x25W hifi amp, sounds amazing, 17 grams, fits in a matchbox with room to spare: http://shop.41hz.com/shop/item.asp?itemid=38 http://shop.41hz.com/shop/item.asp?itemid=38 41Hz Amp4, similar but higher power and sounds ridiculously good - looks like a hard SMD build maybe, but absolutely isn't: http://shop.41hz.com/shop/item.asp?itemid=6 http://shop.41hz.com/shop/item.asp?itemid=6 41Hz PS4, tiny switching voltage regulator - modern 780x/LM317 replacement that is ~90% power efficient and can handle a ~90V in/out tension differential: http://shop.41hz.com/shop/item.asp?itemid=317&catid= http://shop.41hz.com/shop/item.asp?itemid=317&catid= GrubDAC, pretty small and nice usb powered audio output: http://diyforums.org/GrubDAC/GrubDACoverview.php http://diyforums.org/GrubDAC/GrubDACoverview.php

AnthonBerg 14y ago

The editing of the jumble up above was precluded by the HN anti-procrastination feature kicking in. Here it is - along with my apologies - in a more presentable form: — 41Hz Amp32, energy-efficient 2x25W hifi amp, sounds amazing, 17 grams, fits in a matchbox with room to spare: http://shop.41hz.com/shop/item.asp?itemid=38 http://shop.41hz.com/shop/item.asp?itemid=38 41Hz Amp4, similar but higher power and sounds ridiculously good - looks like a hard SMD build maybe, but absolutely isn't: http://shop.41hz.com/shop/item.asp?itemid=6 http://shop.41hz.com/shop/item.asp?itemid=6 41Hz PS4, tiny switching voltage regulator - modern 780x/LM317 replacement that is ~90% power efficient and can handle a ~90V in/out tension differential: http://shop.41hz.com/shop/item.asp?itemid=317&catid= http://shop.41hz.com/shop/item.asp?itemid=317&catid= GrubDAC, pretty small and nice usb powered audio output: http://diyforums.org/GrubDAC/GrubDACoverview.php http://diyforums.org/GrubDAC/GrubDACoverview.php