For anyone interested, my dear colleague Torsten has written a very detailed explanation on the differences between decibels and Sone some time ago. Sone is the loudness and decibels is the sound pressure level, both can not be converted one to one, because at the loudness and so what plays a role as the frequency spectrum, that is how much perceived the noise source is actually. To what extent disturbing now is, for example, a value of one sone, is subjective, because we all listen and evaluate in different environments different. A value of 0.6 to a Sone can be described as quiet and still 0.2 to 0.5 Sone are already really very quiet. At 0.1 and below we were already practically in imperceptible area. When you consider that most gamers probably sit with headset in front of the monitor, it is not surprising that very few setups ever come under a Sone under load and that it is not really all interested. If you want it really almost imperceptible that were supposed to either complete...