echoplex to workstation distortion

[Jon Arterton <flirts@wn.net>]

I'm a bit of a techno-novice. My Roland VS-880 Workstation asks what 
the sampling rate of the incoming device (Echoplex) is and I can't 
find this in the manual. I wonder if this could be causing the 
mid-range overloaded sound I get when I record from the EDP. I do 
live performance of multi-layered of solo vocals.