[Mr Speirs]

Originally Posted by ophic

Personally I would never be able to say that something is "twice" as loud as something else, as its so subjective. Even the same sound at different volume levels - if someone said "turn it up so its twice as loud" i'd have only a very vague idea. Its just not quantifiable to me. And I'm a trained sound engineer

I understand what you are saying I couldn't tell you when something was twice as loud as something. However the comparison is more to illistrate that a doubling of actual power would read on an unweighted meter as a 3db increase. However if the Meter was A-weighted like most decibel meters must be, as this is the way human actually hear things, it wouldn't register as much of an increase and in effect the power would have to double again to reach the same reading as the unweighted meter which was reading half the power.