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IO InstrumentsEuporie Multi-Slope VCF


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IO Instruments Euporie

IO Instruments Euporie is a low pass filter that offers three simultaneous outputs with different cutoff slopes, perfect for capturing a range of filtering types. The three outputs include 24dB, 12dB, and 6dB/oct filter slopes.

The 12dB filter is state variable and features a high pass input switch. The resonance can be CV controlled, and make up gain can be added for Moog-style resonance. It can keytrack CV sequences with a 1V/Oct input and adjustable tracking amount. The linear FM can be used well into audio rate, and the two exponential CV inputs feature CV thru outputs. These allow the same modulation to be sent to multiple destinations without the use of mults or stacking cables.

Euporie brings together three filter topographies into one module, allowing for a diverse range of sounds with comprehensive control.

Euporie Features

  • Multi-slope VCF
  • 24dB, 12dB, and 6dB filter slopes
  • Resonance with CV input and make up gain
  • Two exponential CV inputs with CV thru
  • Linear FM
  • 1V/Oct key tracking with adjustable amount
  • 12dB slope features high pass input switch
  • Input level attenuator
  • Eurorack module
  • Width: 12hp
  • Depth: 25mm
  • Current draw: 70mA @ +12V, 70mA @ -12V
Product Demo Videos
Quick Jam: IO Instruments Eurorack Modules
IO Instruments has some interesting eurorack modules out and some more on the way. We put together this small system with a few of their modules including the Himalia which is a sound source with 5 generators including filtered analog noise, digital noise, a square wave oscillator, sampler with lots of built in drum sounds and a chord generator. IO also has basic modules like the Thermisto VCO, Euporie VCF, Pashiphae ring mod, Sinope VCA and Sponde mixer that add clever and useful extra features. All of the IO modules also have colorful knobs and a halftone paint job that makes them look great together.

We added in a Noise Engineering BIA for the kick, Intellijel Quadrax for envelopes and a Malekko Quad VCA for mixing and extra VCAs. Everything is sequenced with the Arturia Keystep Pro.
IO Instruments Euporie Multi-Slope VCF Reviews