The Spatial Delivery is a voltage controlled envelope filter capable of generating Auto-Wah, Up Sweep, Down Sweep, VCF and Sample & Hold effects. The EarthQuaker Devices Spatial Delivery features three modes, Up Sweep, Down Sweep and Sample and Hold. In Sample and Hold the filter is controlled by random voltage, in the Up Sweep and Down Sweep modes the effect dynamically reacts to the guitarist’s pick attack. The Range, Resonance and Filter controls allow for further fine tuning. It is recommended to place the Spatial Delivery first in your signal chain, fuzz and overdrive pedals placed right after the Spatial Delivery complement perfectly the sound and greatly increase the pedal’s sound palette. It can be activated in standard latching operation or in momentary operation, by just holding the footswitch down for as long as you’d use the effect. This device is true bypass and uses relay based “soft touch” switching. Hand built in Ohio, USA