Pro logic II turns 2 discreet channels into 5.1 channels.
Pro logic IIx turns 2.0 and 5.1 discreet channels into 7.1 channels.
and then we have Pro Logic IIz
To Mad Lust Envy :
If we set the input to 7.1, and turn DH on, we always get virtual 7.1, no matter what game we play ? [Games could output 7.1 or 5.1 channels]