At Knobcon 2025, held Sept 5-7 in the Chicagoland area, Otter Mods introduced three new modules, which they plan to make available in both Moog and Eurorack modular synth formats.
The modules include:
- The O.T.Te.R Oscillating Temporal Tesselation Repeater is a unique and versatile pattern generator style sequencer.
- The Triquetra is a triple shift register module that produces syncopated gates and stepped CV output. Each register can be clocked and looped independently.
- The Octet Itero is a traditional 8-step sequencer that can mute individual steps, adjust sequence length, and has multiple CV outputs.
Here’s a video overview of the modules from developer Elton Glover, via CatSynth TV:
Pricing and Availability:
The modules are available now in Eurorack format with the following pricing:
- The O.T.Te.R – $300.00
- Triquetra – $300.00
- Octet Itero – $300.00
Glover told us that he expects to have the MU versions available within a few months.

Loved seeing so many new MU synths at Knobcon, and these modules look pretty interesting.
The only thing that I wasn’t sure about is that the LEDs on these Otter MU modules were pretty blinding – they seemed a lot brighter than what I’m used to.
I am very impressed with these modules–Elton’s designs always strike the perfect balance between simplicity and complexity, old school analog and modern digital. Very cool!
I looks very complex