To make long term comparisons between amps, cables, power cords, CD
players, and tweaks make no sense. Elements not under your control will
change the apparent sound more than anything. I am referring to
temperature, humidity, atmospheric pressure, state of mind, fatigue,
alcohol consumption (I guess that IS under your control), etc., etc.,
etc. These will all swamp any subtle changes that the aforementioned
items will cause. Quick switching is the only way.


-MIKE