Connecting the Quad Cortex to the Head Rush FRFR108

Hey Everyone, I need some help. I have had my quad cortex for about a month now and I just purchased the HeadRush FRFR 108. I am not sure if I am Using everything correctly. It is very bass heavy I am using it for guitar but even in the amp I will Turn the bass off and it is still very bass heavy can anyone help with this thanks .

Are you disabling the cab block? Are you using XLR 1/2 out or 3/4 out (and balanced or unbalanced?). Lastly, you may need to add some EQ/Low and high cuts to taste.