Here are the step by step instructions for connecting a Rane SL 3 to a regular two channel DJ mixer. Click on the images to enlarge.
Connect the RCA cables of the left turntable (or CD player) to the left deck input on the SL 3.Step two:
Connect the RCA cables of the right turntable (or CD player) to the right deck input on the SL 3.
Connect the turntable ground wires to the SL 3 grounding posts.
Set the dip switches to the correct level - up for phono (turntables), and down for line (CD players).
Plug the SL 3 left deck output into the left line input on the mixer.
Plug the SL 3 right deck output into the right line input on the mixer.
To output the sample player, plug the SL 3 aux output into the aux input on the mixer.
Plug in the SL 3 power supply.
Connect the USB cable.
Connect the mixer to a set of speakers or a mixing desk.