I think we should take that information with a pinch of salt.
Note that Crimsontide's crossover shown in post #6 was found to be different in terms of componentry.
It would be helpful if you should identify each of the components which populate your particular board.
This was the best description of the WEAH D222 board that I found: "The treble is a 3.3 uF blue 100V Siemens capacitor, resistor and overcurrent protector. The bass is an oxygen-free copper core inductor".
That description suggests a first order, 6 dB/octave crossover layout as shown below - with the addition of an overcurrent protector and an attenuating resistor in series with the tweeter.
I tried today adding the old 4.7uF caps to the existing 3.3uF caps on the board.
It sounds way more natural, especially voices. And it feels like the speakers now have the old stage again that they had before.
I am not sure if these are now objectively better or if it is just my old But I am happy.
Thank you very much for the quick help
I will play around with something like this: https://speakerwizard.co.uk/calcs/Crossover_Calc_v2.php
And then later replace the addon capacitors with one that matches.
Sadly I was not able to determine of the inductance is really 0.47mH on the board. From a quick google picture search it could match, but there are no markings and I do not have the equipment to measure.
It sounds way more natural, especially voices. And it feels like the speakers now have the old stage again that they had before.
I am not sure if these are now objectively better or if it is just my old But I am happy.
Thank you very much for the quick help
I will play around with something like this: https://speakerwizard.co.uk/calcs/Crossover_Calc_v2.php
And then later replace the addon capacitors with one that matches.
Sadly I was not able to determine of the inductance is really 0.47mH on the board. From a quick google picture search it could match, but there are no markings and I do not have the equipment to measure.
The calculator requires you to be certain of the order of the high pass filter and the order of the low pass filter.
As you conjectured, since there is only one inductor they can't both be electrical second order.
I traced the PCB and can confirm the layout that Crimsontide draw.
I can not verify all the values since I am currently not desoldering the components.
This means a 2nd order low pass and a 1st order highpass.
With the values provided by crimsontide the power graph has a gap around 4kHZ.
I up the value of C2 to 8uF it looks much smoother at around 3kHZ.
Ofcourse this purely theoretical and depends of a lot of other outside factors.
I can not verify all the values since I am currently not desoldering the components.
This means a 2nd order low pass and a 1st order highpass.
With the values provided by crimsontide the power graph has a gap around 4kHZ.
I up the value of C2 to 8uF it looks much smoother at around 3kHZ.
Ofcourse this purely theoretical and depends of a lot of other outside factors.