Impedance Measurement Error

immortal

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Preamp, Processor or Receiver
Behringer dcx2496
Main Amp
T.Amp d4-500
Front Speakers
EV ELX112
Subwoofers
12" 6th order bandpass
Hello, I seem to be having some issues measuring impedance.

I have followed the instructions on the REW site.

I get this error:

1737568088430.png


However the levels match within 1db when doing a 1khz sine wave

Levels.png


Do you know what the issue could be?
 
How do the levels look while making the open circuit calibration measurement? Are you making any change other than leaving the leads not connected to a load when making that measurement?
 
Thanks for your quick reply!

Those levels were when doing the open circuit calibration
 
I have had a go using Arta Limp and successfully calibrated and measured the impedance.

This is with exactly the same sound card settings and hardware
 
Which REW version? Note that with REW there is no calibration mode for the measurement jig, it stays the same as for measurement.
 
I was on an older version but then upgraded to the latest version
 
I have installed that, i will give it a go.

Also the API looks great!
 
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