Schlappi Engineering Angle Grinder Black

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Schlappi Engineering Angle Grinder Black

Schlappi Engineering

Angle Grinder Black

4.6 Expert Rating

Product Info

Article Number: 535300
Model: Angle Grinder Black
Price: $372.90

* Prices may vary. Check retailer for current pricing and availability.

The Angle Grinder is a seriously unique module – it’s not just an oscillator. It's a sound design playground for experienced modular users wanting to generate complex, evolving textures and manipulate phase relationships. Perfect for experimental soundscapes and generative music, but not for beginners.

Product Description

  • Schlappi Engineering Angle Grinder Black
  • Eurorack Module
  • Quadrature sine oscillator with filter and waveshaper
  • SPIN section: Quadrature sine wave oscillator with 4 outputs (0°
  • 90°
  • 180°
  • 270°) and tracking over 4 octaves
  • GRIND section: Compares the SPIN outputs with an input signal and derives square wave signals which are fed into a VCA and modulated by the 4 GRIND CV inputs and GRIND fader
  • Depending on the setting
  • the module functions as an oscillator or state variable filter
  • Controls for coarse and fine tuning
  • attenuation
  • GRIND/SPIN ratio
  • FM input with attenuator (linear or exponential)
  • GRIND input with attenuator
  • 4 SPIN outputs provide phase-shifted sinusoidal signals or in filter mode low-pass
  • band-pass
  • high-pass and notch characteristics
  • Current consumption: 81 mA (+12 V) / 78 mA (-12 V)
  • Width: 18 TE
  • Depth: 25 mm
  • Colour: Black
PROS
  • • Unique SPIN outputs offer exceptional phase manipulation possibilities.
  • • GRIND section provides complex, evolving modulation textures.
  • • Versatile filter modes expand beyond standard oscillator functionality.
  • • Solid build quality; feels robust and well-engineered for Eurorack use.
CONS
  • • Steep learning curve; complex routing requires significant experimentation.
  • • Power draw is relatively high, demanding a strong PSU.
  • • Limited waveform options beyond sine and derived shapes.

Product Video

Key Features

Type Quadrature Sine Oscillator / State Variable Filter
Waveforms Sine, Square (derived), Filtered Sinusoidal
HP Width 14HP
Depth 110mm
Power Draw 81mA
CV Inputs 6 (4 GRIND modulation, 1 FM, 1 GRIND)

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Frequently Asked Questions

It's more than just a wavefolder; it's a dynamic comparator that generates square waves based on phase differences, creating far more complex and evolving modulation possibilities.
Yes, each of the four outputs (0°, 90°, 180°, 270°) provides a phase-shifted sine wave, effectively functioning as four independent oscillators.
While it *can* be used for basic oscillator duties, its true strength lies in its complex modulation and phase manipulation capabilities – it's designed for experimental sound design.

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