The Dusk filter is a VST plugin lowpass filter made by The Lower Rhythm.
It has a tube emulated gain stage with a clean mix. Dusk is a simple, and efficient filter that will do it's job without much complication and hassle. The signature sound of the Dusk filter is smooth and fat.
You can get all of the plug-ins from The Lower Rhythm if you purchase a VIP pass for $59.99. The VIP pass holder can avail of all the VST plug-ins that The Lower Rhythm has and will create in the future, including updates.