Mixing Crossover Caps..., What Would You Do???


Let’s say that you wanted a conjugate capacitor value of 72 mfd.

Now lets say that you have at your disposal two 400 volt MKP "47" mfd, two  polypropylene 220 volt, "15" mfd and two 220 polypropylene "10" mfd caps to work with.

For those who care, the MKP are Audyn Q4s and the polypropylene are Sprague.  I can hear, and prefer, what the Sprague do to the sound of the Audyn even in the conjugate position.

OK, now we measure the caps and find one Audyn is 46.0 mfd and the other is 47.0 mfd.  The two Sprague "15" mfd caps measure 15.0 and 15.5 mfd and the two Sprague "10" mfd caps measure 10.0 and 10.5 mfd.

So..., by which of these two options we put this mess together...,

46.0 + 15.5 +10.5 = 72 mfd AND 47.0 +15.0 +10.0 = 72.0 mfd and the "final" values are both perfect..., OR

46.0 +15.5 + 10.0 = 71.5 mfd AND 47.0 +15.0 +10.5 = 72.5 mfd

BUT in this case at least the polypropylene caps add up the same (i.e., 25.5 mfd).

So, splitting hairs, what becomes more important..., that the total values come out closer to the same, or that the various types come out closer to the same?

toddalin

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