Thanks. I do believe that everything makes a difference but it is always a matter of degree or, even, order of magnitude. I have heard differences (with electronic delays) of ~1millisecond between the two channels of a stereo pair but a 1millisecond difference requires a cable length difference of more than 125miles! Who has room for such?!?
Kal
1 millisec is around the threshold of audibility for time delay.
Of course tolerances must be much tighter for drivers sitting adjacent to eachother and emmitting the same frequencies in a speaker array as you would certainly get cancellation or reinforcement (comb filtering effects). And since we hear frequencies we will very likely perceive this.
So in one case a millisec is very important and in another it just touches the threshold of audibility. IMHO, it is the misapplied extrapolation of one truth in one situation which often leads to the incorrect conclusion that tiny differences always matter. The reality is that tiny differences do matter in some particular cases but NOT ALL CASES.