For the IN8 using the sheet that @MZKM shared with me I can, more or less, reproduce his score
@MZKM NBD_ON = 0.7159592857 vs 0.7160
@MZKM NBD_PIR = 0.3775553044 vs 0.3941
@MZKM NBD_LW = 0.4736059742 vs 0.4736
@MZKM SM_PIR = 0.880 vs 0.8752
@MZKM LFX = 1.55 vs 1.572 (probably first vs closest point lower / higher)
@MZKM Score= 5.12 vs 5.06 or 1.2% lower
I just can’t see why the NBD_PIR deviate beyond rounding error, not sure…
For what it's worth, Loudspeaker Explorer calculates NBD_ON=0.715959, NBD_PIR=0.394079, NBD_LW=0.473604, SM_PIR=0.875163, LFX=1.554958, score=5.057476 for the Kali IN-8. Do note, though, that Loudspeaker Explorer uses the original PIR from the Amir's (Klippel) zipfile, which is known to be slightly wrong. (For details, see this, this, this, and this.) My understanding is that @MZKM is in process of fixing that in his spreadsheets, which might explain the differences on PIR.
for the SM_PIR the target slope it given in chapter 077 in the Patent and should be -1.75
I does not seem to affect the score though?
Keep in mind the target slope is only used to compute SL. SL did not make it into the final Olive model. Therefore the target slope is not used in the final model at all and is for illustrative purposes only. This is a common source of confusion. (In practice the final model scores are quite consistent with the target slopes, but that's somewhat coincidental.)
Last edited: