Crossover Modeling Help Needed

[greg7]

Could someone help a newbie out by modeling the Seas A26 crossover to determine what the correct values are (inductance and resistance) for the inductor in series with the tweeter to define a second order roll off?

https://www.diyaudio.com/forums/multi-way/297976-seas-a26-kit-modelled-xsim-7.html#post5166695

It was postulated here but for a lower series resistance value on the tweeter. Could someone model this for 18 ohms, 15 ohms and 12 ohms series resistance? I know for 10 ohms it is 1 mH and 0.5 ohms but what about for 18, 15 and 12 ohms series resistance?

 

[AllenB]

This might give you a rough idea of the kind of change needed. I offset the upper reference circuit so it would overlay, 1.5dB when going to 15 ohms and 2.5dB for 18 ohms.

 

[greg7]

Thanks, AllenB