CAPACITOR TEST - VERY SURPRISING RESULTS

[♔Chello]

New crossover connected and tested

Not as expected.
First they were more expensive than expected, because DHL Express demanded a customs fee, which was also subject to VAT - 35$ extra.
So there were some expensive coils - over 100$.

Connected up there was only a small difference from just the capacitor (-6 dB) - the capacitor plus coil gave -12 dB, but I actually think human voices became even a little more shrill than before, and the midrange generally clearer (TOO clear..?).

Very, very strange.
The only sensible answer I can find is that I have calculated a crossover frequency that is TOO LOW.

480 Hz is probably too low, and I have to try a higher frequency.

I have used the calculations for a Butterworth filter, which puts the greatest work distribution on the capacitor, because I have the best experience with this type.

However, I know that Linkwitz-Riley filters are far more efficient - these put the greatest work distribution on the coil, but have unfortunate effects upwards in the frequency range.

This suggests that such a filter should work better in my case, because I want a crossover frequency below 1000 Hz.

I can try a Linkwitz-Riley filter that divides at 680 Hz, because then I can use the coil I have, and change the capacitor value from 18 µF to 9 µF.

This should give a better effect; otherwise the only solution is to divide MUCH higher.