@auxinput Thanks for this info. In past projects I have build DC umbilicals with 10-11awg silver wire, Furutech connectors, and tinned copper braid shielding. I'll keep all options in mind.
Dreaming of a DIY 8W Class A amp designed by Nelson Pass?
I've never built one, or heard them but this kit looks fun as hell, and includes everything you need:
https://diyaudiostore.com/collections/frontpage/products/amp-camp-amp-kit?variant=7072933085218
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@dgarretson - What Furutech connectors did you use? I don't see any DC connectors made by Furutech. The best I have seen is the Oyaide ones below: https://www.vhaudio.com/connectors-rcaxlr.html#OyaideDC But they are gold-plated, which slows down and warms up the sound. I chose the switchcraft ones because of this. As far as wire, I prefer pure copper (my preference) because silver can be a little to fast/sterile for me. I can't imagine trying to solder 10-11awg wire to these tiny DC connectors! lol. |
@auxinput - Woops, the connectors are indeed Oyaide-- for the ACA, 2.5 ID x 5.5 OD (based on the Meanwell data sheet spec.) I do a custom build to 10-11awg with a twist of 20awg .999 dead soft silver strands from Rio Grande on-line. IME, with DC the higher the gauge and shorter the length the better. For terminations to small connector tabs, extend 2-3 strands out of the bundle to make the solder junction. |
I've been experimenting with a bunch of sources and preamps over the last few months. @jayh - I built these with my kids as well. Our second or third project. Even my 7 year old participated. System photo: https://drive.google.com/file/d/1RG7oFzBtF1pH-ViMwFv83GhkWPTNIU6-/view?usp=sharing |
Upon returning from the CAF audio show with good sounds freshly implanted in the memory bank, I was greeted by two Zerozone 24V/5A linear supplies from Hong Kong. Even without break-in they improve on the stock Meanwell SMPS. Increased dynamics. Weighty and extended LF. The slight opaqueness, politeness, and soft-focus of the stock unit is gone. Soundstage is larger and more dimensional. Resolution is increased across FR. Mids are supple and SET-like. There is a vivid tactile quality as heard with top echelon amps. Well worth the $450. |
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