The EarthQuaker Devices Spatial Delivery is a powerful voltage-controlled envelope filter wrapped in a small enclosure. It has three modes: upsweep, downsweep, and the unique sample and hold function similar to the infamous Maestro Sample & Hold stompbox, which randomizes the voltage filter producing a drippy, almost ringmod-like effect. Perfect for auto-wah lovers and fantastic either by itself or with a drive, the EQD Spatial Delivery is hard to beat for filter fanatics and sonic experimenters.