Preamp inverts phase question:

The purpose of phase in a speaker is to make sure that all the speaker's all push out and pull back together. when speakers are out of phase, one speaker is pushing air into the room when the other is pushing away from the room...and that cancels out the sound. It's like two sine waves where one speaker is all the way plus while the other speaker is all the way minus.

For hifi systems (stereo or Home theater), as long as all the speakers are wired the same way, it doesn't matter .... all of the speakers will be in the same phase. It doesn't matter which is plus and which is minus as long as all the speakers are wired that way.

I don't think one's ears can discern the phase of an orchestra or an instrument in an orchestra...and each instrument, each violin, definitely play in and out of phase with each other. So I am not sure how one would record in a way that kept the phase "accurate", given that each time a musical piece is played, the phase of any instrument on any note or transient is random.

A specific recording might sound better with one absolute phase rather than the other, but the next recording (or cut on the cd) could sound better with the other absolute phase.

What am I missing?