I can only go to 0.75 Vrms SE and 1.5 Vrms balanced on the Focusrite 2i2. This is the Gen 1 2i2 and probably their latest USB driver has this limitation (or bug). Later generation 2i2s may not have this problem. I believe the 2i2 is currently on it's 3rd generation with much better specs and the ability to power from mains. The Gen 1 can only power from USB.