Bastl Instruments Ikarie Moodulsüsteem

Bastl Instruments Ikarie: Advanced Stereo Morphing Filter for Modular Sound Design

The Bastl Instruments Ikarie is a cutting-edge stereo or dual peak filter module for Eurorack, tailored for experimental sound shaping and spatial modulation. Designed with Casper Electronics, this filter enables artists to sculpt audio with precision via a unique control that morphs smoothly between lowpass and highpass. In the modular category, the Ikarie filter module distinguishes itself with creative features, compact form, and user-focused design—an innovative addition to any modular synth setup.

What sets this product apart in its category

Two parallel filter cores operate in stereo, as dual peaks, or chained for 24 dB filtering, providing broad flexibility. Its Beyond output generates a true twin peak response by producing the spectral difference between the filters, a rare option inspired by advanced designs like the Blippoo Box. With an envelope follower offering three selectable decay times, plus integrated VCA, overdrive, and a modulation attenuverter, this module supports a patch-programmable topology unlike typical Eurorack filters.

Flexible Filtering—Sculpting Dynamic Soundscapes

Shape tone and spatial effects with nuanced control using the continuously variable morph from lowpass to highpass. Dual peak operation can evoke formant-like and resonant qualities. Stereo effects, lush movement, and evolving timbres are within reach for modern modular setups.

• Filter Topology: 12 dB/oct state variable dual core — allows smooth, musical filtering with stereo and dual peak capabilities.
• Morph Control: Continuous lowpass to highpass — expressive sweeps and complex blends surpass discrete filter modes.
• For those pursuing creative sound design, the Beyond output produces unique phase and stereo spread effects through twin peak (spectral difference) processing.

Stereo Modulation & Envelope Animation—Expressive Control

Advanced modulation capabilities allow musicians to bring motion, rhythm, and stereo depth into their patches. With stereo and spread controls, CV panning, and envelope follower assignment, users can achieve interactive movement and an organic response—perfect for spatial and percussive applications. The input gain stage overdrives up to 5x, from clean filtering to saturated distortion.

• Envelope Follower: Three decay settings — tracks incoming dynamics for automated modulation.
• Stereo Modulation: CV panning/filter detune — creates width, spatial motion, and evolving timbral changes.
• Overdrive extends sonic options, boosting gain up to 5x for a wide palette from pristine to aggressive.

Integration, Power, and Build—Eurorack-Ready Performance

Easy to install and integrate, this model fits most Eurorack cases while delivering robust performance. Compact width allows for creative expansion, while VCA access, v/oct tracking, and patch-programmable topology support professional workflows in both studio and live environments.

• Width: 8HP — efficient rack use for complex filtering power.
• Depth: 35 mm — fits even shallow skiffs and compact cases.
• Power requirements are +12V: 100 mA and -12V: 95 mA, ensuring compatibility across modular power supplies.

Who Is It For

Sound designers, modular enthusiasts, and live performers who seek stereo-capable filtering will find the Ikarie an inspiring tool. Versatile controls, animated response, and compact form suit both experimental and traditional modular systems. For those needing advanced morphing filters and animated stereo processing, the Ikarie enables unique tonal shaping in a Eurorack setup. Whether patching cinematic soundscapes, dynamic rhythms, or evolving timbres, it supports creative exploration at every level.

Bastl Instruments Ikarie: Cinematic Origins and Collaborative Design

Inspired by the 1963 Czech sci-fi film Ikarie XB-1—a milestone in electronic sound design—this instrument was developed by Václav Peloušek of Bastl Instruments and Peter Edwards of Casper Electronics. The dual-core design and morphing architecture pay tribute to early electronic music and the spirit of modular synthesis.