Neo:6 proceeds on the same general basis(as does Logic 7 on HK receivers), but the implementation of course differs a little between the various manufacturers. Neo:6 expands to as many as 6(surprise)separate channels, while DPLIIx and Logic 7 can do(you guessed it)as many as 7. The DPLIIx implementation also has adjustments to change the center width between the mains and center speaker and the "dimension" representing the relative amount of material(not simply a volume adjustment)which is sent from the front channels to the surrounds.
