Product details
Some plugins are tools. Others are environments you get lost in – happily – for hours. D16 Group Sigmund 2 is the second kind: four independent delay lines, nine ways to route them, and modulation deep enough to turn time itself into a playable instrument. Whether you need a classic slap echo or a texture nobody has heard before, Sigmund 2 gets there. And at 60% off, exploration has never been cheaper.
You get everything: all four delay processors, every routing topology, the full modulator section, your own license key, and a secure download link sent to your email.
Rethink what a delay can be
The conventional delay is simple: signal in, echo out. Sigmund 2 asks what happens when you multiply that idea by four and let the copies interact. Each of the four delay lines carries its own character – its own timing, filtering, overdrive and modulation – and the nine routing topologies decide how they combine. Parallel lines bloom into wide stereo fields. Serial chains mutate a simple input into cascading rhythmic complexity.
Changing the routing is like changing the instrument. Presets that share no common ground can come from the same four lines.
The sub-millisecond secret
Most delays bottom out at times too long for modulation effects. Sigmund 2’s algorithm remains clean down to about a tenth of a millisecond, which opens a hidden wing of the plugin: true chorus, flanging, phasing-style sweeps and doubling effects, all generated from the same delay lines. The modulation is precise enough that these effects rival dedicated units – many producers end up using Sigmund 2 as their chorus and widener first, echo second.
Envelopes that listen
The four modulators are more than LFOs. Running as envelopes or peak followers, they let the effect react to the audio itself: echoes that duck under the dry vocal and swell in the gaps, filters that open on transients and close on sustains, feedback that grows only when the input goes quiet. This reactive behavior is what makes Sigmund 2 feel alive rather than mechanical – the effect performs alongside the music instead of sitting on top of it.
Designed for happy accidents
The fastest way to understand Sigmund 2 is to misbehave with it: extreme feedback into resonant filters, serial routings with conflicting tempos, modulators cross-wired between lines. The interface keeps every line visible, so even chaotic experiments stay navigable – and the undo-friendly workflow means no accident is permanent. Some of your most distinctive sounds will come from settings you would never have dialed in deliberately.
What’s inside
- Four independent delay lines with dedicated filter, overdrive and modulation per line
- Nine routing topologies from parallel to fully cascaded
- Ultra-short delay times (~0.1 ms) for chorus/flanger/doubling territory
- Four modulators switchable between LFO, envelope and peak-follower modes
- Rhythmic multi-tap, stereo spatializing and experimental feedback textures
- VST3, AU, AAX – Mac & Windows
Tech specs at a glance
- Formats: VST3, AU, AAX
- Mac & Windows; all major DAWs supported
- Internet needed for delivery and authorization
Why sound designers buy from AudioTools
AudioTools is built for people who explore. You get hassle-free setup, a secure download link sent to your email, your own license key, and support that actually answers. An instrument like Sigmund 2 at 60% off is why the store exists – and updates are provided whenever available.
Frequently asked questions
What exactly am I buying?
The full D16 Group Sigmund 2 plugin – all four delay lines, routings and modulators – with your own license key and email delivery. Nothing is limited or time-restricted.
I already own a delay – why this one?
Because Sigmund 2 is four delays with nine routings, sub-millisecond precision and reactive modulation – a sound-design environment, not just another echo.
Can it replace my chorus and flanger plugins?
For most uses, yes. The short delay times and deep modulation produce chorus, flanging and widening effects of genuinely high quality.
Which DAWs does it support?
All major DAWs on Mac and Windows via VST3, AU and AAX.
How do I receive it?
A secure download link and your license key are sent to your email, usually within minutes of checkout.
Stop thinking of delay as an afterthought. Sigmund 2 at 60% off makes time-based processing the most creative part of your session.

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