Resonant Filter Joel de Guzman April 6, 2015 The Resonant Filter allows you to dial in the characteristics of virtually any pickup with two high quality dual-ganged Bourns potentiometers. The Resonant Filter offers independent control of the cutoff-frequency and resonance (Q). Learn more → Tagged Electronics, Nu Series, XR Series Post navigation Previous Previous post: Oblique Quad 8sNext Next post: Spicy Gadgets