OK... I have the 1124p hooked up to my computer. The analog output of the new digital RS SPL meter is plugged into the RCA Auxillary 2 input (on the front of the computer) of the Creative Audigy 2 Platinum sound card. The ouput (line out on the back of the computer) is directly hooked up to the input of the BFD. I successfully set the measurement level (75dB at -38), but am having difficult setting the input level. The Creative Sound Mixer seems to be correctly set up since when I adjust the input volume on REW the Auxillary volume on the Creative Sound Mixer changes accordingly. The problem is that as the Pink Noise plays at 75dB (according to the SPL meter) when going through the "Set Input Volume" menu, the RMS is around 90dB and will only go as low as 85dB. Nothing I do changes that. What am I doing wrong? Please help!!!!!!!!!! I've gone through every thread on this site and this is the first dealing with this specific sound card. I've applied what I could from the others, particularly those dealing with other Creative sound cards, but none address my specific problems. Thanks in advance.