HOLMImpulse tweeter

[wtnsmk]

I'm trying to measure my drivers in the enclosure with HOLMImpulse. If I start the measurement from 20Hz, then everything looks fine, but when I try to measure the tweeter and set the start freq to 400Hz my curve doesn't look usable.

I found nothing about this so far. Anyone knows what could be the problem?

 

[wtnsmk]

Ok I think I found the issue, I tried to change the start freq on the first (device & signal) tab rather than the highpass on the measurement tab... really confusing