Anyone know how to use the SPL meter for measuring subwoofer?
I am using the SPL meter with a needle (analog) and not a digital. I have the Range set to "70 dB
". I have the Weighting set to "C
" and I have the Response set to "Slow
I was able to measure at 75 dB for all my speakers. But when it come to measure the subwoofer, the needle keeps on bouncing at 75 dB and even higher. Measuring the subwoofer is a little more difficult than I thought.
I guess I don't know where the needle should hit to get 75 dB? When the white noise or the rumbling noise (MCACC Calibration
) is coming out of the subwoofer, I tried to get it at 75 dB but the needle keeps on bouncing over 6+ dB on the SPL meter.
It's kind of hard to explain. The needle seems to stay at 75 dB but if you wait a little longer, the needle will bounce pass the 6+ dB on the SPL meter. It's difficult to read because the needle will not stay at 75 dB. It just stay at 75 dB for a short seconds and the needle will bounce way pass the 6+ dB.
It's pretty hard to get an accurate reading using the SPL meter for subwoofer.