This Module is currently available.
Dual Passive Low Pass Gate
Part of the Takaab range of modules by Siam Modular.
Two passive vactrol-based low-pass gates. Works like a rudimentary VCA with some level-dependant filtering on the output signal at varying amounts dependant on the ‘Tone’ setting. Creates ‘organic’ feeling sounds especially on short, plucky and percussive sounds. Or can be used to modulate another CV in the same way as a VCA, albeit less responsively and non-linear.
With the ‘Tone’ switch in top position, the sound has some filtering, but higher control voltages can open the filter near-completely. The bottom position is the dullest, with the most low-pass filtering. Leaving the switch in the centre position gives next-to no filtering although the signal is still somewhat coloured by the circuit.
One quirk of the module is the relatively sluggish response time, especially on the down-slope, this adds to the plucky sound and also gives a natural ‘release’ to the CV, meaning it works very nicely by simply feeding a gate signal into the CV input without the need for an envelope. This release is dependant again on the tone setting, so the darker setting has a shorter release compared to the bright setting which has a very long release.
Size: 1.1cm (2HP) x 128.5cm x 3.8cm.
Module depth: 2.5cm.
2x low pass gates.
Passive - does not require power.
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