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In Reply to: RE: Fist DIY cables finished. posted by madisonears on November 06, 2009 at 07:17:20
and good questions BTW. I would describe it as a double-helix. If you take two pos/neg pairs and twist the pos from pair with the neg from the other, and then weave the two outside legs back through in an over-under-under, under-over-over fashion you end up with the two pos and two negative in a twist but with overlapping strands.I actually should not talk about where I got the idea, but I will say that I am comfortable using it for my own work but could never take it into commercial production.
Musical yes.
Detailed—very yes.
There is much more detail than with any other cable I have used save the JPS. However, the sound is, as you say musical, with a velvety ease of presentation. There is a taughtness to the bass and an airy extension in the mids and highs that allows more extended decay than I have ever heard. There are layers and layers of notes in slow decay that just hand out there. The very small details that are revealed are not forward, but audible and in what sounds to be the proper priority.
I will do some more listening. Finish up the termination, and get the final changes made to my phono stage and attempt a proper evaluation.
If you do some searching for Litz braid and Litz weave you may be able to uncover the iformation, including research, that I borrowed for this little home-brew experiment.
Edits: 11/06/09
Clear as mud, but thanks for trying to explain it. If you "borrowed" the geometry from a manufacturer, I can understand your reluctance to divulge that and direct others accordingly. If not, then I don't understand your coyness. Oh, well...your choice. Even a simple braid is very effective if good materials are employed, and I encourage others to try it.
I also have braided my own speaker cables from individual OCC solid copper/teflon wire. I think they're better in the mids and highs than all the commercial stuff I've tried, including some upper-middle priced stuff such as AZ, AQ, and Cardas, at one-quarter the cost. I use braided stranded silver for the bass, and it is superb. Most people do it the other way around, which makes no sense to me.
I've never tried the crazy expensive wires, but I have heard some VERY expensive Siltech's in a friend's system. Can't remember the model because I knew it would never be important to me ($3000 for speaker wire is beyond rational, to me). They do sound very nice, but I'm not sure they're better than what I made. He has lots of money to spend; I don't.
Peace,
Tom E
Where did you get the wire?
Dave
Nice work on the cables Jupiterboy.
Do you know of any information discussing the pros/cons between braiding and a more simple twisted pair, or a star quad twist where the two opposite wires are connected together to reduce inductance? I have seen the insides of several well-known cables, and advertisments for others, and quite a few seem to be twisted pairs, maybe with multiple insulated strands bundled together for each polarity. The only true braided speaker cables I have used are a double run pair of HGA SC-16 braided silver I am trying now, although I know Kimber is into it with their 4,8 & 12TC. I suspect the braiding would lower inductance by keeping + and - in close proximity, and I understand it is also supposed to reduce potential for RFI and EMI. Are there downsides to braiding compared to more conventional design configurations?
I have read a bit, and some of it seems to contradict, so weighing primary vs secondary and tertiary factors becomes a guessing game.Read up on Litz braiding and you will learn much, specifically away from the audio field. I have a messy spider in the back of my system so RFI/EMI was high on my list of priorities. I also took heed of warnings of mechanical issues and used a full length run of super tight heat shrink to hold it all very tightly together.
This technique is time intensive, and without a dedicated machine to weave the wire it would not be commercially viable. It is also tailored to lighter gauge wire. To pull it off with a heavier gauge just takes a long jig and careful, slow work.
The research stated related to the weave I used stated somewhere around an 80% reduction in EMI/RFI vs. twisted pair. Whether I am achieving this in my implementation is open to debate.
Edits: 11/07/09
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