Erica Synths Introduces KONSTRUKT-8 // EDU DIY Drum System

video upload by Erica Synths

"KONSTRUKT-8 is 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.

Timeline:
00:01 - Patch 1 / Electro beat with BBD on the send
01:58 - Patch 2 / Wonky beat with FM drum triggering the Hi-Hats
03:57 - Patch 3 / Classic Untz Untz beat
06:01 - Patch 4 / Raw beat, with Feedback bass
07:55 - Patch 5 / Jam together with DIY Synth System"

KONSTRUKT-8 is 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)