Yeah I hear that too. (Not the 8db part) I do know that I done a blazer with (12) 15's a "while back" and it was metered at the world series of sound in Greenville,SC and did a 157.4 and won the show. That was when the record was 156.9, Ultimate Audio had done a 157.8 but it was protested and they didn't back it up. Anyway I mention that because the meter I used today was the same and that is good for me. I am not trying to break any records here, it is just a toy.