Niio Analog - Iotine Core 3


Entirely analog, dynamic audio processor with three independent channels. Two feature each an H-A-R envelope, a smooth 12dB multi mode filter, a low-noise VCA and essentially a fantastic saturation stage, with six different distortion types for each channel. Additionally there's a EQ-like filter with other distortions. Four outputs and an external audio input you can use as envelope trigger input, extending the machine's functions.



Modulation section MOD:

  • The ENV envelopes' parameters are hold, attack and decay. Trigger source can be input 1, input 2 or the EXTernal input that can be fed with an audio signal or a gate signal. If desired, the envelop can be looped
    The threshold control sets the level at which the envelopes will fire. It has a switchable low pass filter to cut the energy-heavy low-end.
  • The envelope follower EF offers adjustable gain, attack and release times as well as a threshold with two modes. Input source selection is same as the envelope'. Pressing a button activates a softer envelope follower behaviour.

The two channels CH 1 and 2 are each built around a filter, a saturation stage and a VCA:
VCF: Resonant 12dB filter which can work as low, band or high pass. Audio signal can be input 1 or 2. Input level is adjustable. Bi-polar cutoff modulation either by ENV, EF or a control voltage which is injected via a 3.5mm socket on the faceplate.
SAT: A really nice sounding satirqation stage with adjustable drive and output level. In total there are twelve varying filter types, six per channel, differing a lot in sound! There are harmonic distortions, overdrives, wave shaping etc.
VCA: controls the amplitude of the according channel, works as expander/gate or as a compressor. Can be modulated either by ENV or EF. Bipolar attenuator sets if the VCA is being opened or closed by the modulation.
The POST channel can run after CH1/CH2 either in parallel or in series, or selects its audio signal from the two ¼" inputs. It includes a second type of resonant VCF along with a frequency divider/multiplier (DIV/OCT) circuits. The 3 channels are mixed internally through a MIX out, or individually patched with their own ¼” out. The switch selects the filter type or the octave rabnge of the multiplier/octaver. As input signal you can use input 1 or 2, SAT 1 or 2 or the external signal. Amplitude modulation by ENV 1 or 2. .
Multiplication and division affects any audio signal very strong and adds hard and harsh harmonics.

Channels 1, 2 and the post section have individual outputs; the mix output carries mix of all three sections.

That was the theory ... in use channels 1 and 2 are dynamic filters and/or distortions. Up to three different audio signals can be processen. But as you can feed each section with the same audio signal but modulate and distort in different ways, frequency selective distortions are easy to do.
example: drum machine is being selectred as inupt for all sections. MIX output is used
- channel 1 set to high pass; very fast but gentle filter modulation, low distortion = hihats modulate the filter slightly.
- channel 2 set to low pass, strong but slow modulations at high Q setting and much distortion = nasty bass drum smashes everything and chirps.
- Post set to OCT mode: entire drum signal is being shredded.
the individual volume controls control mix of separate channels.


The unit can be either rack mounted or used as a desktop unit because of it's sloped housing.


Audio inputs: 1 and 2 (balanced/unbalanced), external input (audio or gate, unbalanced)

Audio outputs: Ch 1, Ch 2, post-EQ (balanced). mix output (balanced/unbalanced)

IEC mains input (90 - 264V AC, 47-63Hz)


19" unit, 3U high
482 x 160 x 133mm (W x D x H)

4.005 kg
Article Number

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