I agree with Rotary. Common sense and divide and conquer are your best tools when looking for speaker line problems. The only time I can see using an impedance meter is with an unknown system and you suspect that an improper load is causing amp problems. There, you would want to measure the total wattage required and compare it to what the amp can supply.

I suppose if you had one you would have used it to tell you that there was a short in that speaker line, but I wouldn't go out of my way to get one.You did just fine without it and your method wasn't any slower.

What would be useful is a TDR that would tell you the distance to the short but I don't think it would work very well on a line with a bunch of line transformers hung off of it.

-Hal


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