Turn the lights way down and simply listen, our visual system is designed for high signal to noise ratio, which diverts attention, as it should, so lower the signal by reducing the ambient light level.
Does your music sound better in a dark room?
Have you ever noticed a very perceptable improvement in the quality of reproduction at night when the lights are turned off. Every playboy knows that he can make more beautiful music when the lights are out. Take this simple test; at night play some music with the ceiling lights on and then while listening carefully to the sound turn the lights out, you should notice an immediate and definite improvement in the quality of sound you hear; more mids, improved dynamics, more definition,less perceived noise. Its like an upgrade in better cables. Can anyone explain this phono-menon? Do the photons have an effect on the sound waves, or is this effect strictly psychological? Possibly decreasing input of one sense (vision) improves another (hearing).