I bought a pair of power cords and a Pass and Seymour LP1 outlet from kevperro. The outlet stands above most tweaks I have tried in terms of improved imaging and cleaner, not softer, treble. The PC's made a subtle but audible improvement, the effect of the outlet was not subtle, probably because the one I replaced was so old and worn. One often hears the phrase "holographic mid-range"; but we also know that higher frequencies are more directional. Shouldn't it be true that improvements that are made to the highs are more important to imaging? There's a thread!