Big,
You didn't mention the center and main channels... do you have the option for L or S there? If so, it may default to the same setting choice for the surrounds that you set up for the front. If I pick S for the fronts in my 600, the center and surrounds can't be L ; the 600 makes you pick S for everything if you pick S for fronts. I haven't messed with L, but from the manual, it looks like you might be able to pick L for the fronts and S for the others, but you definitely can't pick S for the fronts and L for the rest. Good Luck!
lando
