Yes, you should go back to the recommended setup for connecting speakers. Don’t cross the wires.
Out of curiosity, what were you hoping to accomplish?
There are very few amplifiers out there today where combining the leads is a good idea.
I’d not consider it unless the manufacturer recommends it.
Same for bridging the channels, don’t unless the manufacturer recommends it.
In many units the black terminals are connected together inside an amplifier chassis. In this case connecting black to black or using only one set of external blacks does not accomplish or upset anything. In CONNECT:AMP there are two independent amplifiers, the blacks are not connected together internally, and the amp will get upset if the black terminals are externally connected together or only one black terminal is used.
