I purchased a UCA202 before reading about the issues with it. I've been using my PC's line in/line out and thought I'd give it a try.
I'm using it to test my crossover build, and get a puzzling result. I created a calibration file, and the orange plot is the voltage across the amplifier output. The blue plot is the high pass voltage across the driver. As you can see, the voltage from 20 hz to 160 hz measures "backwards". It's as if the UCA202 has trouble measuring low voltages at low frequencies. Is this a normal issue with the UCA202, or is there a setting on it's line in that I can't seem to find?
If this is normal with the UCA202 I'll go back to the line in on my PC.