I believe Sean's correction table was for the Radio Shack (Realistic) analog SPL meter, ie not a digital version. Cheers. Craig
Rat Shack SPL meter calaibration
I understand that the Radio Shack SPL meters are not real accurate. I have the $60 digital readout unit. I have been playing around with it to try to work out a hump in the bass from my system using bass warble tones. Can anyone tell me where the problem areas are with these meters and what sort of compensation you need to do to interpret the info it gives you?