Hdm...I don't think that it is valid to compare a 115 vac wiring change with the Underwood mod to the Denon player. The mod involves replacement of a lot of active circuitry, and it is entirely to be expected (on a purely scientific basis) that the sound characteristics will change, for the better we hope.
When I tested the cryo'd outlet I put on my objective experimenter's hat. Believe me it would have been much more interesting if the test results had come out the other way. If anything, I was biased towards hearing an effect.
When I tested the cryo'd outlet I put on my objective experimenter's hat. Believe me it would have been much more interesting if the test results had come out the other way. If anything, I was biased towards hearing an effect.