I am trying to use the System Calibrate and System Check function to check speaker impedances. However different D20 amps are giving differing values when testing the same speaker. The D20 manual has this entry....
"A System check will only provide valid impedance values, if
the amplifier has been calibrated before the check with the
load connected or if a valid calibration file has been
loaded using R1."
Can anyone explain how to calibrate an amp with the calibration file mentioned?
Thanks in advance.
