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several DC umbilicals

Posted by paco (A) on June 21, 2015 at 06:48:57

hi there,

i'm experimenting with different materials and geometries for a DC cable feeding
my M2tech DSD DAC from a Teradak 15V, 1.5A PSU; these are my results so far:

1. stock cable, stock connectors (Aviation Plug GX12-2P, standard crappy jack):
about 18-20ga, stranded copper, PVC, twisted: not so terribly bad

2. 12ga, stranded, silver plated copper, PVC, twisted, stock connectors: much better,
great dynamics, not much clarity, rather harsh

3. 16ga, stranded, silver plated quality copper (Chord Rumour 2), twisted, stock
connector on the PSU side, Oyaide jack on the DAC side: better all around, more
clarity, though not satisfactory, better bass, though not very articulated, a little
harsh with some recordings after 150 hours

4. 18ga (2 x 21ga), solid enameled 6N OCC copper, four-braided, same connectors
as above; difficult to braid, difficult to solder, BUT big jump in sound quality over
former one; more natural, no harshness at all since the first minute! no loss of dynamics;
more clarity and detail, but very smooth; great bass; the best so far...

next steps: i'll try 2 more models: 18ga solid in teflon, twisted, and Oyaide18ga IC wire,
stranded 102 copper, twisted, screened

i'll post final results with pics of each model

best, paco

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