KONSTRUKT-8 is an EDU DIY Drum System - it's an expressive live performance instrument and sound design tool – plus a  hands-on deep dive into electronic circuit design. 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. 

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. 

What’s Included  

Both versions ship with: 

• EDU DIY Kick Drum kit 

• EDU DIY Snare Drum kit 

• EDU DIY Hi-Hat kit 

• EDU DIY FM Drum kit 

• EDU DIY Drum Sequencer kit 

• EDU DIY Output Mixer 2 kit 

• EDU DIY BBD kit 

• EDU DIY Compressor kit 

• 8 downloadable build guides 

The system version also includes: 

• Eurorack enclosure with integrated power supply 

• 15 braided patch cables (5× 20cm, 5× 30cm, 5× 60cm)

Requirements  

Soldering difficulty ranges from beginner to intermediate. 

The build guides assume a basic understanding of electronics concepts such as voltage, current,  resistance and capacitance.  

For the breadboard experiments, we recommend using LABOR, our circuit design prototyping  tool – a self-contained electronics playground with built-in power supply, oscilloscope, and a  variety of interfacing options and controls. LABOR was used throughout the development of  KONSTRUKT-8 and is best suited for experimenting with these circuits – though a standard  breadboard will also work. 

Completing the full learning path typically takes 6–8 weekends.