2. amps-preamps
  3. 151613-2029

Correct Way to Invert Phase

Hi,

My Conrad Johnson preamp is phase inverting.

The CJ manual says to change the phase "...by reversing the positive and negative connections to your speakers (be sure to reverse both channels)..."

Can anyone explain why changing the positive and negative connections between the amp and preamp would not accomplish the same thing?

Just wondering if this could harm the components or is some other science at work here that I do not understand?

Thanks for listening,

Dsper
dsper

Showing 3 responses by rodman99999

rodman99999
5,988 posts
 
This CD includes tests/tracks that will tell anyone interested, whether they can discern reversed phase, in their room, on their system, with their ears:            https://cheskyrecords.bandcamp.com/album/chesky-records-jazz-sampler-audiophile-test-vol-1            That some can’t doesn’t mean others won’t.
rodman99999
5,988 posts
 
My CDP and phono stage both have phase reversal switches.     The very few recordings I own, that exhibit a change in presentation with a change in phase, are marked.        With those; the effects are obvious.
rodman99999
5,988 posts
 
"polarity" refers to +/- connections (ie: at the speaker or amp).  "Phase"  refers to the motion of the speaker cones, relative to the recorded signal.    Reverse the polarity at either end of the speaker cable and you've reversed the phase, at the cones, 180 Degrees.       "Absolute phase" simply means cone motion and recorded signal are the same, in the context of The Wood Effect (compression at microphone = compression at your ear).
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