1st-order crossover HP: series capacitor

Sizes the dual HP topology: series capacitor and shunt inductor terminated by R.

Sizes the series inductor for a first-order low-pass speaker crossover with resistive load R.

Sizes the ideal LP topology: series inductor and shunt capacitor terminated by R.

Calculates capacitor reactance magnitude at a given frequency.

Calculates capacitor charge from capacitance and voltage.

Calculates stored capacitor energy from capacitance and voltage.