vincei
aka MasterControlMedia
Not sure if this has been brought up before, but does anyone else do it? I was first brought to this practice at a high end audio show about 15 years ago and have since been doing it from time to time when I do critical listening. It seems to lessen distractions, and in my case, cut down on the extra heat generated by the lighting in my listening room. Another positive side effect of "dark room" listening is the lovely light from glowing tubes or meters in my system! 

