| Measurement difference between RS meter and Outboard Mic
I thought I'd try something today. I used REW to measure my sub using the RS meter technique outlined in the REW help files, then I did it again using a Behringer Calibration mic and a studio-grade mic preamp. The constants were the computer, the soundcard (external Creative USB), the measurment postion and the reference level (75db). Using the RS analog meter the C-weighting compensation was ON and with the mic/preamp the compensation was off. When the filters were applied both sets looked pretty close to one another. The top graph is with the mic and preamp and the bottom is with the RS meter.
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