Pigtronix Resotron Tracking Filter
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The Pigtronix Resotron Tracking Filter takes vintage 70s analog synth sounds into the present world of envelope pedals for keyboard, bass, guitar, and beyond. Its pitch-following ability enables the filter to adjust automatically based on the notes you play, much like a vintage analog synthesizer. The Resotron features Up and Down envelope modes for traditional velocity-sensitive filter movement responsive to your string attack. All that and more endeared Resotron to keyboardists, guitarists, bassists, and synth nerds.