Idiotbox Effects Dark Waves ChorusMaker: Idiotbox Effects Model: Dark Waves Chorus Condition: New Description: The Dark Waves is a chorus, the Dark Waves is an echo. Combined to bring about that gothic darkness that you know and love. VOLUME controls the chorus output volume. ECHO controls the amount of echo. RATE controls the speed of the chorus. DEPTH controls the reach. SWELL takes it from a quick rise and slow fall to a slow rise and quick fall and everywhere in between. FILTER