I am using a macbook and the internal sound card for calibration. I have the settings as indicated in the macbook primer post. I am running a stereo cable from the line out to line in. I don't have any Y connecters of anything just the one cord going from in to out.
Below is the calibration file.
I thought this looked ok. So to check I ran a 0-20000hz measurement and got this...
That's not right, right?
Below is the calibration file.

I thought this looked ok. So to check I ran a 0-20000hz measurement and got this...

That's not right, right?