Steve Harris http://plugin.org.uk/
1 Pedalboard using it

State Variable Filter

Plugin screenshot
Filter

Control Default Min Max
Filter type (0=none, 1=LP, 2=HP, 3=BP, 4=BR, 5=AP) 0 0 5
Filter freq 440.00 0.00 6000.00
Filter Q 0.25 0.00 1.00
Filter resonance 0.00 0.00 1.00
http://plugin.org.uk/swh-plugins/svf v.0:0.0-2