I know there's hundreds of these threads out there, but I can not find my answer. My question is, if I run the sansamp through my Gallien Kruegers effects loops (send from GK into the input on the back of the Sansamp then send from Sansamp into return to GK) does this Bypass the preamp in my GK? If i wanted to used both preamps, would I simply plug my bass into the front input on the sansamp then run the send into the return on my GK 2000rb? Or would I run my bass into front input on sansamp, then send the return into the front input on my GK? What is the point of the second input on the back of the sansamp RBI? Thanks.