There are two coding options for Logic 7 in the F10. One is a "slider" to enable surround sound the other is the Logic 7 Logo. I don't believe the "slider" does anything different other than to engage surround or disengage it. I did not notice a difference between 1 and 5 on the scale, just that it was engaged. At 0 it is off. The Logic 7 logo appears when you do not activate the slider option. It makes me think there is no Logic 7 processor in there...they use something different now don't they?

__________________
2012 535xi M-Sport, Carbon Black, Cinnamon-Alum Hex, Exec Pack, Tech Pack, HUD, Damper Control, BMW Apps, Heated Rear Seats