make sure your ins and outs are hooked up right..

I'd make sure the on board effects are turned off.

To turn off the FX on the 57 you will first need to go to group 6 by pressing the Group button, at which point all the B buttons on the mixer will start flashing, and then press the B6 button.
Once in group 6 you will see two effect inserts on the right side of the virtual representation of the hardware.
A red border will be around the effect insert your currently seeing the parameters for.
From there, turn off any B buttons you see lit up on the mixer.
Once done, press the Deck button on the mixer to jump focus to the second effect insert. Make sure all of the B buttons are turned off there as well.

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