They do it because they would have to add another amplifier stage to correct it. Most feel simpler is better and it is definitely cheaper.
Yes, it is audible. Simple example: A whack on a bass drum causes the membrane on the drum to move out intially and then it returns. This causes a compression of air followed by a rarefaction. If your woofer incorrectly reproduces this by first moving in and then out it will sound different.
Some (most?) sudios don't pay any attention to this so some recordings end up being reversed.
FYI, the correct term is inverted polarity, not phase. It is confused by the fact that many manufacturers use the incorrect term.
Yes, it is audible. Simple example: A whack on a bass drum causes the membrane on the drum to move out intially and then it returns. This causes a compression of air followed by a rarefaction. If your woofer incorrectly reproduces this by first moving in and then out it will sound different.
Some (most?) sudios don't pay any attention to this so some recordings end up being reversed.
FYI, the correct term is inverted polarity, not phase. It is confused by the fact that many manufacturers use the incorrect term.