I have a soft spot for filter devices with delay & feedback. My interest was first piqued by the remarkable Marshall Time Modulator, designed by Stephen St Croix in the 1970s. The MTM was unpredictable, complex & unfathomable – which brings me to the T-Resonator
This is a complex device with an interface that takes some learning. It’s worth delving in to, though, even if there’s a learning curve
For me the attraction of the Jomox lies is the unpredictability of the output. At times there appears to be no direct correlation between controls & audio output but the results are always interesting and serendipitous
Jomox T-Resonator MK II Filter