ARLPG

kNoB technology

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Active Resonant Low Pass Gate

ARLPG is an active resonant LPG of the dream
This is an active resonant filter 12db\oct based on vactrols.

When creating it, I had a goal to make a compact and powerful tool for filtering signals. First thing - I tried to keep the bouncy sound of great-grandfather in the face 292, the second thing is to add a completely new resonance circuit, also driven by vactrols, in which the resonance would have a large amplitude at medium and low frequencies and decrease towards high frequencies, in order to avoid the frequent case of uneven auditory perception of a high level of resonance.

The REG (regeneration) knob was also added, which gives additional functions, at the minimum value of this knob, the filter does not color the signal, and works like a VCA, as well as reducing the attenuation of vactrols, at intermediate values it reduces low frequencies in the resonance circuit and allows you to finetune both the character of the resonance and the sound of the filter.

The filter has two operating modes HP and LP.
By voltage, you can control the cutoff frequency and resonance.
Like any good LPG, ARLPG is very friendly to gate signal management, since vactrols have their own natural release, which depends on the time and duration of exposure.

Device inputs and outputs
IN - audio signal input in ARLPG
OUT - audio signal output from ARLPG
Freq - CV input for filter cutoff frequency control
Res- CV input for filter resonance contro

ARLPG Demo and tutorial