Unless I am misunderstanding what @rvpiano is describing, this does not sound correct to me:
It just so happens that my Conrad-Johnson preamp is phase inverting, which means the cables should be black to black on one speaker and on the other speaker black to RED.
From what I understand, and I thought I understood it pretty well:
When a component reverses absolute phase, that means both channels reverse phase in the same way. So, in order to correct the reverse phase, each channel has to be connected to the speakers in the same way, red to black, black to red, so each channel is getting the + terminal connected to the - terminal, and vice versa. So both channels have all the speaker drivers moving in the same direction.
The way @rvpiano is describing it, he will have the drivers on one speaker moving forward, when the drivers on the other are moving backwards.
This does not seem to be correcting absolute phase, but putting each speaker out of phase with each other.
Please correct me if I am wrong.
Not trying to be insulting, but just trying to clarify my own understanding.