pinhl is a vactrol-based 3 channel passive low-pass gate.
NEW FOR 2020: Each channel of pinhl features 3 different tones selectable with the switches on the front of the panel.
With the switch in the upward position, the channel is in low pass mode with a mild cutoff.
When the switch is in the down position, the tone is darker with a stronger level of filtering.
In the middle position, the channel bypasses the filtering circuit and acts like a passive vactrol-based VCA