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Ho ho ho! Belden and Blue Jeans Join the Dark Side


Jud

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One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> optical Ethernet to Fitlet3 -> Fibbr Alpha Optical USB -> iFi NEO iDSD DAC -> Apollon Audio 1ET400A Mini (Purifi based) -> Vandersteen 3A Signature.

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30 minutes ago, Jud said:

 

That time.pdf is pretty detailed.

 

This is an older powerpoint presentation I read a while ago which was good reading too:

 

iconoclast_tm__speaker_cable.pdf

 

I've spoken to a couple DAC designers before who don't like the typical audiophile cable BS in our hobby but they say the high cost of these Belden cables is due to high R&D costs and also the manufacturing cost is huge with this design.

 

So it's really expensive to buy but not for all the typical reasons (apparently)

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From the Blue Jeans Cable website...

 

Quote

The Cable: Blue Jeans Cable LC-1 Low Capacitance Audio Cable

The most important attributes of a line-level unbalanced audio cable are (1) shielding, and (2) capacitance. Heavy shielding protects audio signals from interference from outside sources. LC-1 Audio Cable uses a heavy double-braid shield, with one bare copper braid laid directly over another for extreme high coverage and high conductivity to ground; this is the identical shield configuration to Canare LV-77S, which tested best in our review of audio cable hum rejection characteristics (LC-1 hadn't been designed yet so wasn't tested at that time). By shrinking the center conductor to 25 AWG and foaming the polyethylene dielectric, we were able to get capacitance down to an extremely low 12.2 pF/ft, much better than LV-77S at 21 pF/ft. Capacitance can be important, particularly in long cable runs, because it contributes to rolloff of higher frequencies. The softer dielectric material and smaller center conductor, meanwhile, make the cable highly flexible and easy to route. LC-1 is built exclusively for Blue Jeans Cable by Belden, the leader in American communications cable, and is rated CM for in-wall installation in residential and commercial environments. For more information and specs on LC-1, read our "LC-1 Design Notes" article.

 

 

So, considering that, what I read in that pdf was a bunch of gibberish to enable them to charge more for the same cable, or cable with a teflon dielectric rather than the polyethylene one of the LC-1 cable...

No electron left behind.

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4 minutes ago, Em2016 said:

 

Same cable?

The descriptions are shockingly similar except for the material used for the dielectric. The Capacitance for LC-1 is claimed to be 12.2pF which is the same as the Iconoclast RCA cables.

 

What the hell though, they're allowed to make money!  I say go for it, people will buy them so they may as well.

No electron left behind.

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5 minutes ago, AudioDoctor said:

The descriptions are shockingly similar except for the material used for the dielectric. The Capacitance for LC-1 is claimed to be 12.2pF which is the same as the Iconoclast RCA cables.

 

In the links above it does say:

 

"it is still possible for cables with the same R, L and C to have different sounds. The difference comes down to time -- that some factors which are not taken fully into account in measuring overall R, L and C do affect the relative speeds of parts of the signal as they travel down the signal path."

 

But yeah I considered this cable a couple of years ago but decided to spend the same money elsewhere...

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Several years ago I purchased a 6 foot LC1 cable for connection between my DAC and Preamp. 

 They are well made high quality cables at a very reasonable price, however in my system they were  a little too HF detailed due to their much lower capacitance.

In hindsight I could have probably easily corrected this with the addition of a couple of low value capacitors across the DAC output sockets.

 

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There's a massive thread at PS Audio's site.  Galen is very active there.

 

https://forum.psaudio.com/t/belden-iconoclast-interconnects-and-speaker-cabling/2038

 

** I use standard Blue Jeans and have heard these at a friends place.  Do they sound different?  Yep.  Worth the cost?  Not to me but I need so much for my system there's no way I'll do it.  

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11 hours ago, AudioDoctor said:

not a chance...

 

 

Screen Shot 2019-03-31 at 1.03.52 AM.png

 

 

Those are for the most expensive cable stock.  The regular cable stock price is $520 and $785 for the same cable configuration.  Here is the explanation of the three types of cable stock.  Design and construction is all the same. 

 

Conductor Options:

There are three options available for the signal conductor composition (shielding is TPC on all varieties). The difference between these is purely one of material, and not of design; regardless of whether your cable is made with TPC, OFE or OCC, the internal structure is the same, and the termination methods and hardware are the same.

The conductor choices for XLR cable are TPC, OFE and OCC. TPC is Electrolytic Tough-Pitch Copper, widely used in communications cable of all sorts. OFE is Oxygen-Free Electrolytic Copper (99.99% pure); OCC is Ohno Continuous Cast copper (99.99998% pure). The outer jacket color is red for TPC, violet for OFE, and green for OCC.

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