So I've run into this issue during the first few phases of Reference 4 measure when it's telling me to adjust the microphone gain to the proper level for the rest of the measurements. I'm using the XREF20, but it seems like even at the bare minimum amount of gain that Reference 4 Measure deems acceptable (any lower and I can't proceed to the next step because the software is telling me to increase the mic gain), I'm getting clipping and distortion during the next phase of measurements where it asks you to hold the mic 1-2cm away from the center of the speaker driver. It only happens on the first two sine wave sweeps and then it's fine as they decrease in volume throughout the next few repetitions.
Am I missing something? I've tried different combinations of increasing/decreasing the volume of my monitors and the mic gain. Is it just supposed to clip for the first two sweeps on each speaker?
Thanks for the help.