New REW (Room EQ Wizard) user. Had no issues setting everything up, calibrating, measuring, adding CAL file, etc.. running with SB Live 24 USB and RS digital SPL meter.

Regardless of what I attempt to measure, and despite nearly all changes in volume, input/output levels, when I take a measurement, I receive a message in the middle of the measuring process that says "Clipping is detected. Continue or cancel.." I have to turn it down to such a degree that the test tones are inaudible to me to get a reading that doesn't give me a clipping error message.

This happens when testing all speakers, or simply the subs. I find it extraordinarly difficult to believe this is really the case, as all of my speakers are powered by their own 200 wpc monoblock, and my subs are both PB12+/2s running at 1/4 gain with a 75db reference/calibration signal.

Any idea what could be going wrong here?

Thank you.

I think it means that your sound card is clipping not your other equipment. Try turning the sound card down and the other stuff up.

Thanks. I should have done a search first - someone else had the issue, and was also using the mic-in rather than the line-in. Fixed it. Thanks for the reply.