There are so many filter designs, and it would be lovely to list them and compare suitably with all the required emotion and personal justification we can muster.
I’ll start first. . .
The Mini Moog.
It features a duel drum solo.
Apparently you had to have one, otherwise the drummers fight. . .
meanwhile anyone know much about the West coast implementations, Buchla et al…?
I love the MoogerFooger, if only it wouldn’t cost one arm and a leg I would have one…
I got instead myself a Dreadbox filter… but there is also the Behringer Eurorack
Wasp filter for 39 Eur… I don’t know if its that nice today or if it sounds the same of the original that was made in Uk with big fat components… many of those 70’s gears
had 220AC components with massive headroom, not some random 2.5 bias pedal with 5Vppv… more like 60Volts PPv… schematically it might look the same but the reduced
voltages used across it change the sound nature, same goes for the old giant caps…
Personally any filter with ADSR is something special in its own regard, even the Volca
Nubass filter is a tiny wonder, a diode ladder schematic with ADSR and LFO. If it wasn’t for the 2.5V bias and microscopic components it would also sound cool… too bad it’s in a Volca only…
I always liked the filter work on ELO’s “Here Is The News”. Not sure what they used but it is a polysynth, maybe a CS-80, or OB-X. The filter sweeps in both directions so they probably used a pedal on the cutoff frequency.