The Intellijel Passive Low Pass Gate 1U is a simple, vactrol based, 1-pole, passive low pass gate, which is controlled by an external CV input. Without positive control voltage, the gate is completely closed and none of the LPG’s input signal is passed through to the output. Increasing amounts of positive CV open the gate — making the output signal both louder and brighter. At +5V, the gate is fully open and the input signal is passed through to the output.
Since this is a passive circuit (no power is applied to it), its sonic characteristics are somewhat dependent upon the audio signal you feed into it, making it a very natural and organic way to shape a signal’s volume and tone.
A great way to fill up those small gaps in your 7U and 4U cases!
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