Phase inverting preamps

Put another way; if a system is phase correct and a recording has sounds out of phase; your system reproduces for your ears to hear, what that out of phase music sounds like. That reproduction of the out of phase sound is in phase. If you reverse your speaker cables that sound is not in phase. You are hearing an out of phase sound, out of phase. It may end up sounding even worse.

I guess I agree that a recording with the polarity wrong has no affect on the phase of your system. The + signal (and minus) of DC current going through your hardwired system cannot be reverse solely based on music encoded on a piece of media, whether, CD, LP, or Tape. That would defy the laws of physics.

If you had a recording with multiple microphones, where some microphones were in phase and some out of phase, some sounds may cancel out in part, which is why the recording sounds off. You system won't be feeding post positive and negative current to both speaker terminals at the same time. I hope you agree that is impossible.

Herman, I think we all including Sugarbrie agree; it is just a matter of terminology. I have a Conrad Johnson preamp and in the owners manual CJ uses the term phase inversion, not polarity to describe reversing the speaker wires. So even the manufacturers interchange the two terms.