Vortex Sound Research

Hello

I am looking for an interesting, not too expensive filter that offers high pass filtering. I already own Ivo and use it for traditional subtractive voices. However, as I like to patch my own hi-hats, I would like to include a high pass filter into my system. Any cool options out there that are a bit „out there“ on top of being high pass filters? I know, there is QPAS, but that would be my maximum budget and I am interested in alternatives.