I usually use my MacBook to run Ableton with Cues & Metronome on Output 1 (Left out) and Loops and other stuff on Output 2 (Right out). I don't use an external audio interface, so I go out my Mac with a Y-Jack cable intro a stereo D.I. which leads to the mixer. Everything works great like this so far.
I tried the same setup with a sort of ultrabook and I get metronome on the Right channel when I play it. Everything is set exactly the same, but apparently there's some sort of spillover between the two channels. Is it the ultrabook's fault?
Do you thing this could be solved by using an external audio interface (like a Focusrite Scarlett 2i2 for example)?