I would like to connect the KGSS (balanced), Woo Audio 5LE (SE), and GS-1 (SE) all to the ECD-1.  I was hoping to be able to have more than one amp on at a time (but at least not have to plug and unplug cables).  Is it ok to have amps connected (and running) to both the XLR and RCA outputs of the ECD-1 simultaneously and will this degrade sound quality?   
 
This was my plan: 
 
  
        |----(RCA)----> GS-1 ----(loop out)----> WA5LE 
ECD-1   |  
        |----(XLR)----> KGSS[/HTML]