I’ve been trying to become a little more educated on phase shifts and the effect crossovers have on phase, and to take a break from all the reading wanted to try playing with phase on my current amp to see if I notice a change. I saw someone said that most bridgeable amps are actually marked backwards and that both binding posts are positive when bridged (the - on Chanel 2 is electrically +). Which would mean when not bridged the speakers are actually reversed in phase, correct? I happen to be running a four channel bridged for my 2 front comps, so if I reverse the polarity on one side will it change the phase or will it not since they are both positive? Couldn’t find a post that specifically answered my question. also just out of curiosity, does the HPF on the amp itself affect phase at all?