No.
The dual zones are only to drive different pairs of speakers.
As you described connection of A to high and B to low will only probably decrease an output resistance. If the output devices good power supply and current reserve, it will give you a possibility to drive a speaker with low impedance.
The dual zones are only to drive different pairs of speakers.
As you described connection of A to high and B to low will only probably decrease an output resistance. If the output devices good power supply and current reserve, it will give you a possibility to drive a speaker with low impedance.