Blades

Mutable Instruments' dual multimode filter in 18 HP: two analog state-variable filters with drive, and a routing control that crossfades between single, parallel and series configurations.

Key features

• Two filters, each continuously variable from low-pass to band-pass to high-pass, up to self-oscillation
• DRIVE sets gain and distortion; a second knob morphs the drive circuit from soft-clipping to a two-stage wavefolder
• ROUTING crossfades between filter 1 alone, the two filters in parallel and the two in series
• Cutoff coupling button: filter 2's cutoff follows filter 1's, transposed
• CV inputs with attenuverters, V/OCT inputs, individual and main outputs; DC-coupled throughout
• Made from December 2020 to April 2022; the design is open source