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In Reply to: RE: Where can we find the clone recipe? posted by rickmcinnis@dogwoodfabrics.com on November 05, 2010 at 08:43:52
Look for posts by B. Purvine, then follow-ups. I know this is a lot to read through, but it's highly informative, and later you'll see illustrations and read about various ways to use this tweak. You can skip the theoretical speculations and just zero in on the construction technique posts.
I do not pretend that this is easy, nor that it is better than the commercially produced ones.
But it is extremely easy to test the concept using just some zip cord, as suggested in this thread. If that works, then making up a real set is worth the effort. Took me about an hour or two to do the set of 10 for my system.
I had to: buy the right Litz wire, cut to 6" lengths, strip the insulation from both ends of each strip using a candle to burn it off and a Dremel to sand off the residue (not easy!), then heat shrink as described and cut the tubing afterwards, then solder to my desired terminations (YMMV in this case). So it's a multi-step process but not complicated once you see the pix.
Works within 20 minutes and improves as it burns in.
I use them on both speakers, sub, amp, DAC, CDP. The more the merrier!
Follow Ups:
bartc, thanks for the diyaudio link. I just went to Radio Shack and bought some 100 microhenry, 2 watt chokes, crimped the wires to a spade connector and hooked them up to the negative terminals of my speakers. Subtley outstanding(or better). Like one of the others said, "Like turning the lights on in a dark room."
kendo
I'm sorry, but I don't recall the choke tweak on that thread. Where did you read this?
Thanks.
bartc I don't remember exactly what page is was on, but I would guess that on pages 4-6 of the posting. The gentleman stated that he had used what I thought were torrodial chokes and that they bested the DIY ones that were being discussed. I decided to use the ones that I chose only because they seemed easier to work with.
kendo
On page 8 of that DIYaudio.com thread on 'groundside electrons'. He doesn't specify anything other than "common mode chokes" with lots of wire.
You got stuff off the shelf at RS, huh? OK, I might try that one. I'm assuning you did the same thing: make a single lead from the two ends and put that onto the negative post of your speakers, right?
bartc, yes I simply crimped the two ends of the choke wires onto a spade connector. BTW, I later made another set on attached them to positive speaker terminals and got slightly more improvement. Maybe a little wider sound stage, definitely more pronounced and tighter bass response, slightly better transparancy, and more gain at the same setting.
kendo
Not better, not worse, on either pole. Too bad....
thought I would hear what a good implementation sounds like.
Luckily I have a small solder pot but have no idea where one goes to get the Litz wire.
Would you reveal your source?
Thanks, AGAIN!
See if you can find a loal place that sells surplus electrical/industrial parts. Here in Colorado Springs we have place in an old supermarket. I found an entire shelf of spools of magnet wire ranging in size from 20ga - 42ga. Quantities from Small (2 lb) spools up to large 16 lb spools. I paid $14 for 3 pounds of 36ga wire - more than I'll ever use. Or, you can buy it from Ebay and pay shipping.
While it is good to read the whole thread, the drawing in post #230 at the bottom of pg. 23 will show you what you want to achieve in the end.
the old picture being worth one thousand words ....
Thanks, again,
Rick McInnis
thought I would include the link
Mr. Purvine is quite a fellow.
I haven't tried his ENABL speaker cone treatment. But I suspect he knows whereof he speaks, even if some doubt his theoretical underpinnings. Fact is that his ground tweak does work very well in my system and in a friend's too, so I'm sufficiently convinced it's valuable.
I do not mind reading it over.
...and these things really work. Very good tweak. I think my stranded wire was/is 18 gauge or so. I may try the EVS (because they're cheap and I believe litz).
Hi,
You will like the litz wire versions a lot I more I suspect. I was an early experimenter with Bud's idea and tried all sorts of versions. I found that fine magnet wire litz of at least 100 strands per loop brought the best results.
on the cics thread.
I saw that you had been onto this for awhile.
Can't wait to hear what they will do.
The fellow who made my DAC and linestage found that it does work and he is a very sober and sensible fellow. If there was nothing to it he would not equivocate.
Not different from when I saw that you had posted to the thread at DIY. I knew there was something to this. (I trust your ears!)
I love these little discoveries! I mean Mr. Purvine's discovery!
Now I want to try the ENaBL dots.
I probably should have but many here think this stuff is nuts. I get a bit weary also of the innuendo that I overstate effects of tweaks and new versions of cplay so I shied away from it. But this one is a keeper.
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