..so you think there's no need.......

I have Vandersteen 5A speakers which have a sub section that's powered by its own class D amp....very efficient...needs little power. The power cords look like Home Depot specials.  Yesterday, I found an old Transparent brand power cord....what the heck.   I substituted the HD left cord with the Transparent, the result is a major sonic improvement, not only in the lows where you'd expect, but in the soundstage mids/highs.  Although I can't pinpoint a difference in sound from the 2 speakers, I now have to explore a 2nd power cord for the right one....I don't expect I'll ever find a Transparent power cord after all these years.