This applies to the Scarlett 2i4
If you're using your unbalanced line outputs to send audio to an external mixer from your Scarlett 2i4 and you notice that outputs 3 & 4 are louder than outputs 1 & 2 this may be due to your monitor knob setting on the front of your 2i4. It's important to remember that volume for both balanced and unbalanced outputs 1 & 2 are controlled by your monitor knob on the front of your 2i4. Therefore if you're experiencing less signal from outputs 1 & 2 than 3 & 4, make sure that your monitor volume is set the maxium output volume to ensure that both sets of unbalanced outputs are sending equal volume levels to the two channels on your external mixer. This is essential when using your 2i4 for djing as having unqual input volumes could cause uneven levels when crossfading from track to track.