This is Zoom 9030 DSP processor 
Zoom is famous Japanese audio equipment manufacture
 
Tested with audio inputs and it works fine.
Has many built in effects and all controllable from front.
Ideal effect module for home studio or live events.
all effects are DSP controlled.
100-240v power pack included.
half size rack mountable or desktop module
headphone socket at the front.
can connect foot switch.
 
beautiful florescent display for parameters
actual effects on/off indicators at the right side
Very easy to use
100-230V power pack included.
 
Click here for user manual