I have been searching relentlessly for a decent portable(preferrably handheld) true Impedance Meter.
I have found the ZM1 from Gold-Line, but I've never used their equipment before so am uncomfortable with spending $380 on a piece of equipment I haven't used before.
(I have used the several thousand dollar ESI Video Bridge which does the same thing, among other things, but is too bulky and not very road-rugged for using in the field).
Any other models/recommendations are greatly appreciated!

Dave

PS: For those who don't understand, an Impedance Meter sends out an actual audio signal (usually sweeps or offers several audio frequencies) then measures the actual AC audio impedance of the speaker or speaker/volume control network. It is an invaluable troubleshooting tool when trying to locate autoformer or speaker shorts in large Audio Systems.
A regular multimeter or one that measures Resistance is not effective or accurate for this task because inductors (transformers or speaker coils) have different characteristics to DC which is what a Resistance meter uses as its test signal.