It was more of a curiosity since, as I mentioned before, I have access to the TDR. I'll try to test my headphones on next week just to see what happens.

The TDR I have at work is a HP54754A module for a HP54750A oscilloscope. It belongs to the lab, so access to it depends on availability.

First post in Head-fi (been lurking for about a year). I've been wondering if a time-domain reflectometer (TDR) be used to measure the impedance of headphones. I know it is used to measure the characteristic impedance of cables, PCB traces and connectors.   I have no need to measure the...