Thanks for the info.
I will admit that I don't know the science behind it.
I just know that when I set up this way I was able to get improved non distorted volume.
When I bridged the amps would shut down at high volume.
If you can bi amp your speakers then use an amp running in stereo for each speaker. One channel for the highs & the other for the lows.
Increased power and you don't need to bridge.