Topic: fireface UC unbalanaced headphone outs (7/8) to monitors

Hello,

I am working on a project where I need to set up an 8 channel system (my usual set-up at home is 6). My question is, is there any good way of connecting the headphone outs to active monitors without any unwanted noise? Is this advisable or should I be thinking of getting a different interface for this project?

Many Thanks

Peiman