Passive Band Pass Filter - 0hp - Ligatura - BPF module for modular synths and Eurorack

The Ligatura is an evolution of the Herzlich 0hp LPF and HPF filters, joining them to form a band pass filter with fully variable pass band controls. Simple, passive, single pole -3 dB high pass into low pass forming an endlessly variable band pass, useful in all manner of situations - either filter can also be defeated entirely, allowing it to function as either a HPF or LPF alone. Neat!

Ranging from 16Hz to 16kHz on both filters, it's easy to perform various set-and-forgetfiltering duties by simply inserting it in your patch.

Now, passively band pass your way to paradise, traveler!