Re: Virtual SMAART training: Tell the crossover frequency and type
Hey Rasmus,
In German we say "Wer viel misst, misst viel Misst"
this is a pun, which I cannot translate to English, but the meaning is "measure a lot and you will measure a lot of shit"
on the other side measuring a lot really helps, you get to know your speakers, how they behave on axis/off axis in the vertical and horizontal plane
and if you made every mistake in very small field, you are an expert 
~~:smile:
Faulty speaker could mean a) polarity problem like others in the thread suspected or b) transducer still operating but not like it should ( half cooked or worn out )
for a) in my example polarity of the 12" seems to be the same in both phase diagramms, for polarity of the HF driver I would look at the impulse response
for b) I think listening to the speakers and compare the supposed left to right is the easiest way
The "off axis" part:
comparing the supposed left and right means trying to measure under the same conditions or as close as possible.
From "auto delay" or "peak" like it is called in Systune I can compare distance to left/right
that would leave in my example different downtilt, here moving the microphone up and compare the results in FR helps
important is:
at that microphone position, which produces the green trace, the speaker will not sound good,
and EQ will not improve that, but maybe changing downtilt, thereby moving this problem area elsewhere
Uwe
