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Stealth Audio's VR -Vacuum Ribbon (Pair)
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Stealth Audio's VR -Vacuum Ribbon (Pair)

Speaker Cables by Stealth Audio

Manufacturer's Description:

The flat solid core VR conductors are made of custom 99.997% pure silver (certified purity silver). This silver material is custom made for us, then tested for purity and certified. A stereo set (not bi-wire) of these cables consists of 4 separate cables: two go to the right loudspeaker, and two go to the left one. Using two separate cables per speaker is better than using two cables in one common jacket because for a given type of cables, this configuration offers MUCH lower capacitance, and thus increased bandwidth, and the stability of power amps (unstable amplifiers sound harsh).

The "wire" used to make VR cables is solid 99.9% pure silver, flat single core conductor 1/8 inch wide and 0.01 inch thick. In VR, no real dielectric is used - at least, in the conventional sense: the silver ribbon is just inserted into a flexible (but strong) transparent outer jacket 1/4 OD, and covered with semitransparent black mesh for strength; the tube is filled with Helium* and then hermetically sealed, so the flat silver wire is surrounded by very light and absolutely chemically inert gas.  When such construction is measured, the dielectric constant is equal to approximately 15-fold vacuum (1.001 versus pure vacuum 1.000 and (the closest up) solid Teflon being 2.2 to 2.5 depending on the Teflon type (all other known solid dielectric have higher constants; the closer the dielectric constant to 1.000 - the better for the sound because low dielectric constant means low energy storage, which offer fast transients and the lowest distortion).  Standard termination is Ultra light gold plated beryllium copper Z-banana plugs or well-known Cardas Rhodium-plated copper spade lugs (6.4 mm or 8 mm). Optional (and recommended) termination is Stealth brand solid silver spade lugs: just $25 extra per lug ($200 extra per a stereo set of cables) over the standard termination.  


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