Hi guys, sorry if this thread already exists somewhere but I couldn't find one.
Who out there has actually tested a range of power cables with a cathode ray oscilloscope? What did you find? I mean, if you plugged a CRO into a power outlet in your house and look at the waveform and see noise or harmonics, then plug the CRO into the same powerpoint with a $1000 power cable and observed the difference in the quality of the sine wave?
As an experiment you could plug in a CRO, then plug in an air compressor or grinder or something with a big dirty motor on it into the other socket on your double powerpoint and introduce a bit of noise into the supply and note the changes to the fundamental frequency, then repeat the test with a new beaut power cable, you would either see a difference or you wouldn't, right. And that would be a difinitive result?
And also, if you have a noisy power supply does it make a difference to the sound produced anyway? I wonder if any of the people or companies that do frequency response graphs and the like are in an industrial estate - hopefully with a cabinetmaking business or something a couple of tennancies away from them that are using saws and thicknessers and sanders and the like all day. What would happen if they tested a certain system during the day when there is lots of dirty loads on the power grid then repeated the exact same test after hours when everyone had finished up for the day and gone home and the power supply was cleaner - does the system sound 'better' in the middle of the night?
Surely someone out there has done something like this.... ?