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When people design power cords they use
massive cable to reduce the noise voltage on the cable. The noise
voltage that occurs on the cable is related to L (inductance) and di/dt
(the rate of change in the current). You can reduce L by using larger
gauge wire but you don't get much bang for your buck because it is a log
function. What this means is that as you keep increasing the gauge of
the wire you do not get much improvement for your effort. This is why
you see people using very heavy and stiff wires in power cords. I have
seen some power cords that are so big and stiff that the CD player
connected to them is lifted off the ground.
What we have done at Analysis Plus is use
computer simulation to optimize the design of a power distribution
system. What we discovered is our patented hollow oval design provides a
low L cable without having to use stiff and bulky cables. Our cables
have a super low noise voltage to reduce the background noise to a
minimum. This is extremely important during quiet passages, if you want
to hear subtle details (this is very important for classical music fans
and for other lovers of live music).
The other thing people don't realize about
low frequency noise is that the thin aluminum shield found on many power
cords does nothing to reduce this problem. The best way to reduce low
frequency noise on cables is to reduce loop area. From our computer
simulation and measurements we found our patented hollow oval cables does
a great job at this. We have the lowest noise voltage we have seen with
our hollow oval design.
For higher frequencies our silver-plated
copper braided shield does a great job. We used an open braid design
that works much like the window on your microwave oven. You can see
through the window but the radiation stays where it belongs.
Terminated with WattGate
connectors, this power cable is engineered to deliver your audio/video
components the clean power they deserve. |
