Question about QLS crossover

chef free

Super Member
The QLS has an adjustable crossover for the EMITs. I assume that the middle setting crosses the tweeter at 4000Hz as listed in the specs. Has anyone calculated the crossover points for the "high" and "low" settings? The caps in the adjustable plug are 2.5uF, 1.75uF and 1.25uF.
 
Does anyone know the impedance of the tweeter array? Does it change when I switch on the rear tweeter?
 
Does anyone know the impedance of the tweeter array? Does it change when I switch on the rear tweeter?

Mine each measured 2.9 ohms and I believe around 3 is normal.
I didn't measure with the rear engaged but I imagine the value changes.
 
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