The SSF/WMD is the best as far as price to hp to quality is concerned in eurorack IMO. Also my favorite HP filter in eurorack.
Three sisters I continue to find new uses for. Recently been experimenting more with feedback, and using precise cv into its exponential fm input to dance around its resonance self-oscillation point with a mangrove input for some truly wonderful and nasty bass lines.
The Synthesis Technology E440 is straight up the best low pass filter Iâve ever heard. The multiple slope outs also make it special for feedback purposes, and in general it takes audio rate FM particularly well. Tracks extremely well in self-oscillation as well.
The rxmx-fxdf combo is also amazing for feedback with two different simultaneous slope inputs. I find it particularly fun with random voltage and various noise color inputs for percussion sounds.
Really love the WMD Aperature, itâs a special design. Next on my list to buy when I can afford a new case as well.