phase correction for records?

Dear Dopogue: Rare that that happen because Guillermo and I were 4-5 hours working on.

Maybe that friend's switch was out of work and we have to take in count to the system's differences and room interaction.

It is much a coincidence that in two different " bipolar " ( JJ and Guillermo ones. ) speakers we can heard those differences that like JJ point out are heard mainly on the soundstage presentation.

In my speakers I can't hear almost nothing but that with inverted polarity the music comes with less " emotion ".

Anyway, it could be interesting that other bipolar speaker owners try on it and see what happen.

Regards and enjoy the music.
Raul.

Dear Tom: These test records have it:

Vanguard StereoLab Test Record ( VSD-100 ), HI-FI Sound Stereo Test Record, OmniDisc by Telarc ( DG-10073/74 ), Stereo Review SRT-14, CBS Laboratories STR-100.

I hope this could help you.

Regards and enjoy the music.
Raul.

Thanks to everyone for their comments. I performed the following experiment to see if I truly understood phase:

I found a record that I did not feel had any phase problems.

1. I switched the polarity of one of the speakers. The sound had a very unusual timing problem, as if one speaker were reaching my ear at a different time than the other.

2. I switched both speakers. I can't explain why, but suddenly the LP sounded like a CD. It was decidedly colder and transitions seemed choppy by comparison to having correct polarity.

The difference between switching only one speaker is far more pronounced than switching both.

Well, Jenny, you gain nothing by switching only one speaker cable. This
should merely produce out-of-phase sonics with a "diffuse and
directionless quality," to quote what the guy says on an ancient Shure
test record. I can't account for what you're hearing by switching both speaker
cables. It should have an effect, yes -- assuming your speakers are polarity-
coherent -- but nothing as dramatic as what you're reporting.

When you say you picked out a record that didn't have any phase problems,
you should bear in mind that records were originally recorded in
"normal" (absolute, if everything is hooked up properly) polarity,
in "inverted" polarity, in mixed polarity, or in some combination of
the above. Engineers either didn't care or figured the listener wouldn't hear
the difference or wouldn't care either.

Some records were recorded with a vocalist, say, in different polarity from
everything else. So depending on how you reproduce it, you can bring the
vocalist out front, or push him/her back into the mix. This is a maddening,
complex subject. One of my audiobuddies simply refuses to play the game
(he can hear the difference but ignores it). Frankly, If I were you, I'd follow
his lead :-)