Hi I am new here I am getting a helix but the phones knob is broken, this isn't a massive deal to me as I want to gig mostly and use a cab, but I would like to record and go into my computer, So my question is, With not being to access the phones volume can I still use the helix with an interface into monitor speakers ? or even use monitor speakers with the helix? and can I use the helix as an interface still? If so what cables do I need instead of using headphones port? If this possible and how ? Thanks!