Silencers have NEVER been illegal !
Hello, I am in dfw Texas the Plano Garland area. Annyone know where to look for a list of class 3 dealers in my area?
ccgardwick said:One thing that many people don't realize about the noise reduction in decibels is that it is a logrithmic scale. So compared to a -10db reduction, -20db is ten times the reduction. -30db would be 100 times as quiet as -10db. So if you compare a -30db to a -35db, it doesn't seem like that much of a difference on paper but the -35 is five times quieter!
You both are partially correct, logarithms are involved -- as are many quantities when great ranges are involved. However you fell into a common trap. We're familiar with the logarithmic (base10) Richter Scale of earthquake magnitudes -- for each whole number you go up, the amplitude of the ground motion recorded by a seismograph goes up ten times. This is a typical scale that's expressed logarithmically.RAnb said:The change in noise intensity can be expressed as 10^(dB/10). So reducing noise by a third is 2 dB, a 5x reduction is 3.2 dB, 10x is 10 db, 100x is 20 db, 1000x is 30 db and so on.