I currently have a 2i2, and it's good. I also have some slightly higher impedance headphones (250) and the headphone amp on it needs a little more power. I'm getting an O2 headphone amp, and I'd like to connect it to my interface, but the 2i2 only has one set of outputs that I currently have wired to my monitors. The 2i4 solves this by having 2 sets of outputs, but the problem here is that I have to manually set which output to send audio to.
What I need to know is whether there's a way to set, for example, my Windows audio output to the Scarlett 2i4 and have it come out of both sets of outputs simultaneously. Ideally I can use my monitors as normal but also be able to pick up and use my headphones without having to fiddle with setting audio outputs since I will be using this outside of a DAW as well.