Since it is summer and am taking a long weekend, this post is not really overdue.
But here it is the first of many project posts, but decided to share the latest from
@ctrl. Since Amir cannot test as designed, we will likely take this version and make a passive crossover so, the can test. Until that day, if you should choose to build this speaker beforehand,
please be aware that you will need to measure and possibly adjust the filters to get a flatter response than the sim allows. We have not been able to fully explain some of the differences between the Klippel measurements and my own (crude but improving ones). The most major diff is that the sims have an upward tilt above about 10 kHz.
After we do some explaining of this design, I will do a simple walkthrough of doing your own with VituixCAD in the build thread. The attached file is compressed and contains the project file and 2 folders with Amir's measurements of the drivers.
EDIT: See following post for files. When you open the project, you are likely to get a couple of warning like this one...
This is due to the paths changing between the project and drivers measurements. To fix, you need to do the following for both drivers:
On the drivers tab, click on the driver to select it..
Click on the folder icon (next to
Frequency responses) and navigate to the folder where you extracted the driver measurements and select all the files in the folder and click Open on the dialog box. You will see another error about duplicate response, you can ignore and click OK. Repeat for each driver. If you did this correctly, the frequency response, the frequency response plot should flatten and excess phase traces will be gone. It should look like this...
Note that below the Frequency response information there is a comparable one for Impedance response. This project does not need as it uses an active crossover, but if you want to do a passive design, you will need to associate the impedance files for each driver (we will show how once Amir supplies the files).
Click on the crossover tab and this will display the crossover diagram and a full set of graphs. it should look like this...
You can double click on any the graphs and they will be show in a larger view. At this point, expect there will be questions and I will assist as I can. As this design was done by
@ctrl, he will take over from here.
Enjoy!