REW RTA

[nerddude]

I am currently testing a subwoofer outdoors.
I am using band limited periodic pink noise between 10hz and 200hz. I am using a focusrite and earthworks microphone.
SPL meter is measuring peaks at 106db but in rta graph its about 103db.
So i am trying to figure out why it is different

 

[John Mulcahy]

The RTA peak trace shows the highest input rms level. You can use the CEA-2020 burst signal for peak SPL measurements.