WORLD OF MUSIC ; PORTABLE KEYBOARD » Erica Synths Intros Konstrukt-8 DIY Modular Drum Machine

Erica Synths Intros Konstrukt-8 DIY Modular Drum Machine

21 Mar, 2026 Synthesizers/Keyboard Synthesizers & Modular Synthesizers

Erica Synths has introduced Konstrukt-8, a new DIY modular drum machine.

Each of its eight DIY modules comes with a detailed build guide and can be explored on a breadboard first, letting you trace every circuit design decision before assembling the final instrument.

Features:

Konstrukt-8 includes four fully analog drum voices:
- Kick Drum. A resonant bridged-T network produces deep, punchy kicks.
- Snare Drum. A burst of filtered transistor noise layered over a tuned resonator creates a crisp snap.
- Hi-Hat. Six dissonant square-wave oscillators are mixed, filtered, and overdriven to create metallic percussion.
- FM Drum. Two interacting oscillators form a versatile percussion voice capable of kicks, toms, bells, and cymbal-like sounds.
A four-channel drum sequencer lets you tap in rhythms that loop automatically. Under the hood, shift registers store the pattern as a circular sequence of binary data.
All voices feed into a four-channel mixer with per-channel FX sends and a master insert, allowing you to shape the entire beat with external effects or the built-in distortion and compressor.
Two effects modules complete the system: an analog bucket-brigade delay (BBD) with flanger and delay modes, plus a diode-based compressor with sidechain capability.

Erica Synths says that the project is of ‘intermediate’ complexity.

The Konstrukt-8 drum machine is available now as a DIY project, starting at €490 for the full DIY set.

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