Google around and you will find this explanation, in various wordings around the net.
A change of 1dB(A) is the smallest difference one can hear within an acoustically controlled environment A change of 3dB(A) is a just noticeable change in level difference in an external environment A change of 5dB(A) is a clearly noticeable difference in level A change of 10dB(A) is heard as a doubling in loudness of the noise I liked this wording the best, even though it came from an article about the noise effects of windmills !!! Nice thing about the web, is it can be used to back up things you knew from reading real books before the web was created - yep I am that old, and I even built a set of Gilbert Briggs speakers from his book :))) Back to the main point however, does anybody really think 3dB is enough headroom for real music? No, I thought not. -- bigfool1956 David Ayers Music is what counts, hifi just helps us enjoy it more ------------------------------------------------------------------------ bigfool1956's Profile: http://forums.slimdevices.com/member.php?userid=13782 View this thread: http://forums.slimdevices.com/showthread.php?t=43045
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