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In Reply to: Recommendation may be too strong of a word (long) posted by Jon Risch on April 17, 2004 at 10:14:03:
Hello John,I have a few question's for you if you dont mind.The first is what makes a cable a glorified zip cord?Any cable that uses PVC maybe?What are the compromises of the CC89259 speaker cable?I notice you discribe PVC as having a sonic signature that add bass and smoothes out the high's,what is your view on the sonic's of Teflon?Maybe the opposite of PVC?Less bass and brighter high's?Also how does say the cross connected 89259 compare to 12awg zip cord in term's of inductance?
Follow Ups:
[ The first is what makes a cable a glorified zip cord? ]The basic geometry and the materials. A simple twisted pair is not that different than a straight untwisted parallel run (zip cord) in terms of the overall inductance.
[ Any cable that uses PVC maybe? ]
Nope, that would only be a portion of the reason, as noted above.
[ What are the compromises of the CC89259 speaker cable? ]
Stranded wire, ETP copper, and the total amount of copper, as well as FEP instead of TFE teflon, and finally, flexibility.
It would be better if the center wire was a solid wire instead of stranded, and better if the braid were a foil, however, this is not a huge thing, see:
http://www.AudioAsylum.com/forums/t2/messages/415.html
about half way down, for the reason. The small radius involved keeps any strand jumping forces (whatever you wish to ascribe the to) down to a minimum compared to a 12 ga. stranded wire.It would be nice if the CC89259 cable had some 6 nines copper, but the ETP Belden uses is a good grade of ETP, and runs toward the bottom limits of that grade for purity.
Two 89259 coaxial cables Cross-Connected equal approx. 13 1/2 ga. This is not as low in DCR as some cables, but the easy solution is to double up, or Quad Cross Connect a set of 4 coaxial 89259 cables, for even lower inductance, and a total equivalent ga,. of approx. 10 1/2 ga.
TFE has even less sonic signature than FEP, and so would be more ideal.
[ I notice you discribe PVC as having a sonic signature that add bass and smoothes out the high's, what is your view on the sonic's of Teflon? ]
The errors that teflon commits, it's 'sonic signature', is much smaller than any other solid dielectric I am aware of, including PE of any type. The foamed variety has even less than the solid type, and so, has very little deviation from neutrality. What little there is, is along the following lines: a very slight bloom in the midbass, and a small touch of upper range brightness. However, it needs to be kept in mind that these are a fraction of the apparent amplitude of the deviations of most other dielectrics.
[ Also how does say the cross connected 89259 compare to 12awg zip cord in term's of inductance? ]
I have posted this before many times, a search wouldn't have been that difficult.
The best 12 ga. zip cord I know if in terms of inductance has approx. 0.23 uH per foot, the CC89259 has less than 0.067 uH per foot, thus it has less than 29% of the inductance of 12 ga. zip cord.
Thank's John,I appreciate your insight.
Earnest...my interest was peaked when I looked at the "M" after your handle.You can look at Jon's posts on teflon vs PVC and form your own conclusions but I'm curious as to a response you made to a a user's comments regarding your own ELF Custom cables.
Are you seriously thinking about changing your thermoplastic covered cables to teflon ? Have you tried ? Last, is HDPE (high density polyethylene) used in your cable the same as PVC as you called it thermoplastic in your post ?
Hello PeAk,I used teflon in my first generation silver product's,but found teflon to bright.I later moved to a thermoplastic insulation called HDPE(High Definition Polyethylene).I find my HDPE to offer a nice blend of detail without brightness,and also keep bass in tact.It is also less exspensive than Teflon,allowing me to keep prices low.There are several form's of Thermoplastic insulation including,PVC,PE,Polypropylene,and Teflon,they are all form's of plastic.
Thank's,Ernest Farley.
HDPE is typically High Density Poly Ethylene, not High Definition.BTW, the combination of silver and teflon requires a LOT of burn-in, until it fully settles in, it would have been on the bright side.
(HDPE IS TYPICALLY HIGH DENSITY POLY ETHYLENE,NOT HIGH DEFINITION POLY ETHYLENE)
John you are partly correct,HDPE is typically high density polyethylene,but I have a propriety version designed specifcally for my cables that I call HDPE*(High Definition PolyEthylene).Ernest Farley.
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