DIY speakers Visaton BG 20 full-range speaker no tweeter dome + tweeter SC 10 N

DIY speakers Visaton BG 20 full-range speaker no tweeter dome + tweeter SC 10 N / making a crossover for acoustics
Hello friends.
in this video I will make a notch filter for a full-range speaker BG 20.
I removed the tweeter dome from this speaker. 
now you see the frequency response of the full-range speaker BG 20 with tweeter dome and without tweeter dome .
I will select a notch filter empirically to remove this hump in the frequency response of the speaker.
and I will also add a tweeter Visaton SC 10 N to the speaker.
we will all see and try to hear the difference in sound. 
housing for acoustics made according to the drawing of visaton solo100.
let's see together how I selected the notch filter.
First, let's look at the frequency response of the speaker without a filter.
I have a filter for B 200 High-end full-range loudspeaker from SOLO 100, let's try to connect it and see how the frequency response changes. 
new filter from the components that I have. 
I will use a filter from Visaton solo 100 as the basis for the circuit. 
diy 2 way speakers

Friends if you want to support my channel https://www.paypal.me/MihailMischenko/
thank you very much