There is two 1/4" outputs on the back one Sansamp the other Unaffected. Isnt the output for the Sansamp supposed to be post pre? I ran this into my old crate and the sansamp eq and drive are not doing anything seems like it is totally bypassing the pre amp. I would expect this from the Unaffected output but not the other. I have a power amp on the way and will be using the XLR out for that but still concerned.