Das Kleine Fusion System

The Erica Synths Das Kleine Fusion System is a complete, pre-configured Eurorack modular synthesizer that harnesses the immense sonic power of vacuum tubes to deliver sounds with unparalleled warmth, depth, and aggressive character. As a more compact sibling to the larger Fusion System II, Das Kleine Fusion is designed for musicians and sound designers who crave the rich, organic, and often unpredictable nature of tube-based synthesis in a more focused and affordable package. This system is a sonic powerhouse, excelling at creating earth-shaking basses, searing leads, and complex, evolving textures that are full of life and harmonic complexity. While intended to be used with external effects, the core sound-generating and shaping capabilities of this system are second to none.

The Das Kleine Fusion System is built around a carefully curated selection of Erica Synths' acclaimed Fusion series modules. It includes two Fusion VCO2s, which are fully analog oscillators featuring three simultaneous waveforms, a transistor-based suboscillator, and a unique detune function that uses two BBD delay lines to create a thick, chorus-like effect. A key feature of the Fusion VCO2 is its tube crunch circuit, which adds a layer of distinctive tube overdrive. The system's filter is the Fusion VCF3, a 24dB/octave low-pass filter that combines vacuum tubes and vactrols for a uniquely soft and resonant filtering experience. The VCF3 also includes a CV recorder for creating complex modulation patterns. For modulation, the system relies on the Fusion Modulator, a complex, all-analog CV source inspired by the looping envelopes of the EMS Synthi, and also includes a VCA, noise generator, and sample & hold. Finally, the Fusion VCA/Waveshaper/Ringmodulator, based on two miniature pentodes, acts as a versatile sound-shaping tool. All of this is housed in a sleek 104HP one-row skiff case and comes with 20 patch cables to get you started on your sonic journey.

Features

• Complete, pre-configured vacuum tube-based Eurorack modular synthesizer.
• Compact and powerful system for aggressive and harmonically rich sounds.
• Two Fusion VCO2s with tube overdrive and BBD-based detuning.
• Fusion VCF3 24dB/octave low-pass filter with vacuum tubes and vactrols, and a CV recorder.
• Fusion Modulator with looping envelopes, VCA, noise, and sample & hold.
• Fusion VCA/Waveshaper/Ringmodulator for complex sound shaping.
• All-analog signal and CV path for a pure, vintage-inspired sound.
• Housed in a 104HP one-row skiff case with a lid.
• Includes 20 patch cables.

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