Reversed Polarity LP Cuts - Examples?


I recently bought a custom made phono stage equipped with a three-position polarity switch on the front panel with the positions "+", "mute", "-" and, so far, have not had occassion to use the "-" function. I found an old UK pressing of the Stones "Sticky Fingers" at a garage sale Saturday and, after a thorough cleaning, found that a few tracks sounded a bit "flat", for lack of a better term. Recalled the polarity switch and snapped it to "-". Huge improvement.

I have heard vague mention of LP's or tracks of LP's being recorded "in reverse" before but am wondering how commonly this is found. Can anyone give specific examples of what they've discovered (not including intentional phase shifting done for particular efffect, such as used by the Beatles and others). Thanks.
4yanx

Showing 1 response by bob_bundus

Yanx the phase phenomenon is not just exclusive to phono - compacted disc exhibits the same issues. I've found that the phase invert button on my full function preamp sometimes improves certain cuts on an (LP or CD) by enhancing one or more of the following:
Dynamics. Bass extension & control. HF articulation. HF harshness. Vocal naturalness. Weak-ish 'washed out' sounding cuts.
That phase buton works almost like a tone control sometimes.
Note that not *all* cuts on the same LP or CD will benefit from phase inversion; some do while others don't. As Zaiks says, it's a simple matter of experimentation. Those cuts that do not benefit from inverted phase will typically, but not always, run much better when non-inveted. The 'correct' phase is typically easily determined by a brief listening sample & a few button-presses to compare subjectively.