The EPSi is a DSP powered effects processor using convolution to simulate various sounds. The impulse responses used to generate the effects are stored on an included SD Card and custom impulse responses in the standard Wave format can be added to the factory collection.
Two versions of firmware are available for it:
Version 1.00 is optimized for long time windows turning the EPSi into a high quality reverb pedal. The SD Card lists 114 sounds from acoustic spaces to spring and plate reverbs to various special FX sounds.
Version C.00 is optimized for low latency dry path convolution which allows the processing of Speaker Cabinet + Room type impulse responses. Together with an onboard guitar amp style EQ, the EPSi alone can simulate stunning clean channel sounds from a mic’ed guitar amp.
The EPSi has a high impedance input where a guitar can be plugged in directly and it also has an analog zero latency dry path. The EPSi is firmware upgradable via the SD Card.
The UMI3 is a USB foot controller which shows up as a class MIDI device on Mac or PC. No driver installation is required. It is powered through USB. Each of its three switches can be configured to send any type of short MIDI message (note on/off, continuous controller, program changes...) An external expression pedal can be connected to the "exp" input which can be configured to send any continuous controller message. A status LED indicates power and USB activity. The enclosure is made out of steel.
This controller is ideal to control events and parameters in digital audio workstations or loop based recording programs when performance renders access to a mouse impractical.
A Setup Panel for the UMI3 is available for Mac OSX and Windows. It allows configuration of the UMI3 and can also work as a sequencer. When the "Auto Step" feature is enabled for one or more of the switches, the panel steps through each of up to 8 different configuration memories and sends them to the UMI3 on the fly when the corresponding button is released. Control or note sequences can be easily created and stepped through using this features. A button can also be set to autostep the sequence of another to achieve "next page" type functionality.
The panel uses a custom USB pipe to access the UMI3 so that no conflict can exist between itself and the application which uses the MIDI stream.
Full Circle is a standalone software looper for Mac OSX and Windows designed to get the maximum functionality out of the UMI3s three foot switches. Full Circle features three looping tracks, each operated by one UMI3 foot switch. Each track offers unlimited overdubbing, a one level deep undo and muting/un-muting all at the command of the foot. Each track also features extensive channel strip processing with high quality effects including sends to a great sounding bus reverb.
Full Circle + UMI3 together provide as much looping fun as the most expensive hardware looping pedals available.