Sigmund from the D16 Group is a software delay plug-in with over 200 factory presets featuring four separate delay units, each with its own independent parameters. The plug-in supports AU and VST formats and is compatible with Mac and Windows.

In addition to the four delay units, Sigmund features a multi-mode filter, an overdrive module and an amplitude modulator for tremolo type effects. It also features two LFOs that can be used to modulate delay parameters to achieve many different textures ranging from subtle modulation to warped beyond recognition.

Sigmund also incorporates a built-in mixer that allows for nine different routing topologies for creating new and unique sounds. In addition to being a delay effect, it also produce a multitude of other effect types such as tremolo, filter, limiter and distortion. It also has the capability of producing chorus, flanger and spatializer type effects depending on how you tweak its parameter settings.