Just to step in here where i think it looks to be value added:
1) Lab test that Grant mentioned can be found at a link at the bottom of the Hydra techincal page on their website: http://www.shunyata.com/HydraScopeTests.pdf
2) Grant also does live demos of these tests up-close at audio shows - I have seen them 1st hand.
3) On a more philosophical note - much of audiophilia is not captured by science - as those who have measured two power cables will see - one cannot 'hear' the cable by looking at it on a scope. No matter how much 'lab work' is done - it all goes out the window compared to the importance of empirical field analysis.
1) Lab test that Grant mentioned can be found at a link at the bottom of the Hydra techincal page on their website: http://www.shunyata.com/HydraScopeTests.pdf
2) Grant also does live demos of these tests up-close at audio shows - I have seen them 1st hand.
3) On a more philosophical note - much of audiophilia is not captured by science - as those who have measured two power cables will see - one cannot 'hear' the cable by looking at it on a scope. No matter how much 'lab work' is done - it all goes out the window compared to the importance of empirical field analysis.