My current setup is to record audio from a RodeLINK wireless mic that goes straight into my Tascam DR-60Dmkll Audio Recorder. Once the audio goes through the Tascam it outputs straight into my T5i.

On my T5i I have sound recording set to manual. 

My question is: On my T5i what should I set the recording level at to get the best sound?

Right now it is one notch above zero and it sounds pretty good but I have to boost the levels a lot in post 

Thanks for your help,

-Eric