I have a pair of studio monitors that I want to set up. I'm connecting them to an Mbox2. The Mbox has 1/4" connectors for monitor out, but I have a choice on the inputs on the monitors; I can either do 1/4" or XLR in. Is there a difference in sound between the two inputs? Does it matter which way I go? Also, I'm a little confused about balanced vs unbalanced. The inputs can be either; does that matter?