Wid, you are absolutely correct, as is Jakeman (John). I have misread his post as I am so accustomed to setting the sub around 2db lower on the meter. We are all in aggrement; the meter underestimates at low frequencies so the correction is +2.0dB for the sub for 40-100Hz. By the way, my Velodyne SMS-1 actually shows a flatter response when everything is set to 75dB without corrections.
John

John
Our HT