Capacitor Selection: Electrolytic v Poly

[Geoff Millar]

Standard analog filters would not be protected, assuming you are not sharing (or haven't elsewhere) the drivers, box, etc.

Thanks, but as the cabinet and drivers are already on the designer's website, if I post the schematic I think I would be giving away the design.

The answers above will save me many $$!

Geoff

[billfitzmaurice]

reducing the value of that capacitor doesn't seem to change the FR that much.

That's because it's value is too large to affect FR. It will add another 45 degrees of phase shift, which is a good idea assuming the LP is 2nd order, but being too large it won't give the steeper roll off below F3 compared to a 2nd order HP, along with the benefits that carries with it.

[Geoff Millar]

That's because it's value is too large to affect FR. It will add another 45 degrees of phase shift, which is a good idea assuming the LP is 2nd order, but being too large it won't give the steeper roll off below F3 compared to a 2nd order HP, along with the benefits that carries with it.

Thanks for the info, the LP is indeed a second order.

Geoff