Originally Posted by NuSoardGraphite
I thought +3 dB increase was a doubling of volume.
uh uh nope nada they say generally it takes twice the wattage say 100 watts increased from 50 watts to gain 3dB in loudness on a given speaker ,that is barely noticeable if even at all at higher levels especially if you have room gain
Bills the expert here some of the other folks seem to have a good handle on things also .I belive reference level for THX movie sound tracks in theater is something like ~ 85dB average level?
ofc there is more to THX than that but that will kinda will give you an idea 3dB is not much gain or loss of loudness barely perceptible I think.
someone might want to ad to that .
Google says .............. Barely Perceptible Change @ 3dB http://www.gcaudio.com/resources/howtos/loudness.html
Luckily the resident double blind listening test hearing perception all knowing 'Phd's ' have not appeared yet , must be past their bed time
Some times it gets ugly when they try to postulate and the folks disagree threads can go off on a wild tangent for days although there are one or two possibly more here that aren't so bad and quite knowledgeable and actually contribute some useful dialog.Edited by tubetwister - 10/13/13 at 1:07pm