fean,

i am one ytear older than you and do of course have high freq hearing loss but still can discern differences in components and wire. most of my wquip has captive power cables but one day, i intend to experiment with power cables as to sound diffs.

that will wait until i have iec equipped electronics. too many reviewers that i respect cant hear the diffs and i am open to the information when it presents itself to me in person. i have not been privy to demos of that type.