Erica Synths has released the KONSTRUKT-8 as a fully assembled system, making its DIY drum machine available ready-to-play out of the box. The system comprises eight Eurorack modules — four analog drum voices, a shift-register sequencer, a four-channel mixer with FX sends, a bucket-brigade delay, and a diode-based compressor — mounted in a dedicated enclosure with integrated power supply and 15 braided patch cables.
The fully assembled version joins the existing DIY kit (€490) for builders who want to learn each circuit, while the assembled module set (€520) and complete system with case and cables (€640) remove the soldering barrier. All versions are fully compatible with standard Eurorack systems, so the modules can be rehoused later.
KONSTRUKT-8’s four drum voices are fully analog: a Kick Drum using a resonant bridged-T network for deep, punchy kicks; a Snare Drum layering filtered transistor noise over a tuned resonator; a Hi-Hat built from six dissonant square-wave oscillators mixed, filtered, and overdriven; and an FM Drum with two interacting oscillators capable of kicks, toms, bells, cymbal-like sounds, and even bass lines or leads. Each voice has its own dedicated front-panel controls — no menus, presets, or shared controls that need reassignment between voices.
The four-channel drum sequencer uses shift registers to store patterns as circular binary data, letting you tap in rhythms in real time. All voices feed into a four-channel mixer with per-channel FX sends and a master insert. Effects comprise an analog BBD delay with flanger and delay modes, plus a diode-based compressor with sidechain capability. The system includes headphone and line outputs, measures 26.5 × 27.5 × 6 cm, and ships worldwide via UPS or FedEx with a 24-month warranty.
Source: Erica Synths, October 2026
Available now: KONSTRUKT-8 Assembled module set €520, KONSTRUKT-8 Assembled system with case and cables €640 (VAT not included).