For those undecided whether colors of the room make a difference or whether darkness or light is best for SQ can I suggest using a variable strobe light, you know, like one of them 3 million candlepower disco jobs whilst playing music? Vary the frequency of the strobe to see if and how it impacts the sound. Who knows, you might notice the SQ change with each pulse. Good sound, bad sound, good sound. Keep a log. I would be very interested in your results. If you have any kind of history of epileptic episodes this experiment is probably not a good idea for you.
