Measuring Impedance

[pbc]

Wanted to check the system impedance of my passive radiator DIY sub. Have a UMIK-1.

Is it simply a matter of running that measurement in REW or are there different connection requirements? Can't seem to find much info for when using a UMIK.

The help section refers to using both inputs of a sound card and some sort of resistor?

 

[John Mulcahy]

The impedance is an electrical measurement which requires input and output to be from the same audio interface, using the connection setup you mentioned from the help. There are a few threads on it in the forum.