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Cable Asylum Interconnects, speaker wire, power cords. Ask the Cable Guys. |
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Cable Asylum Interconnects, speaker wire, power cords. Ask the Cable Guys. |
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In Reply to: Thanks for the explanation, Al :-)) ... posted by andyr on December 9, 2006 at 13:02:04:
The common design approach for audio interfaces is low impedance in the source and higher impedance in the load, with negligible power loss in the cable. The high resistance Van Den Hul interconnect cables are a notable exception. The common approach guarantees mis-matched impedances and resonant behavior in the cables unless other damping measures are employed.Since the resonances are in the UHF band and far away from the audio band, it is possible to provide damping through an old trick called "dynamic loading." This approach loads the cables with resistors and uses capacitors in series to prevent the resistors from drawing power from the audio band. This is how Walker Audio High Definition Links work for speaker cables.
The complex behavior of shielded interconnect cables presents significant challenges for damping resonances, and the sizes of the connectors make DIY dynamic loading difficult. This is all I'm going to say about the technology, as I do have some information that is proprietary to others. IME there is considerable audio benefit to damping electrical resonances in cables, and I believe that a large part of the "synergy" of cable matching to audio gear has to do with differences in resonant behavior among cable designs.
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Follow Ups
- Dynamic loading. - Al Sekela 11:06:46 12/10/06 (0)
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