Originally Posted by spearfish25

I updated the original post to request A weighted values. Some meters like mine from radioshack give the option of either weighting. My understanding is that c is best for music and includes a wider frequency range that is beyond our audible range. A weighting stops at a low frequency of 500hz, and a site I saw suggested it's best for car sound readings. As an aside, my values are listed as A weighted. When I used c weighted, everything was about 10db louder.