2. cables
  3. 1103467675

Stereophile test CD2 In/Out of Phase test:question

Hi
I just noticed that on Stereophile Test CD2,on the second track that shows in-phase and out of phase recording ,if you switch speaker wires on the amp end you will still get the test play thru your speakers as if you had a non-inverted phase.The test sounds identical not depending if you changed phase of your system or not.Please,explain why this is happening?
overhang
lvk47
94 posts
 
how can you tell which binding post on the speakers is + or - if they are not marked. I have altec horns and can remove the backs. Thanks
tbg
5,263 posts
 
Lvk47, I thought I had posted this, but I guess not.

Take a D cell battery and connect the bottom to one of the leads to the drivers. Then just touch the top + of the battery to the other lead. If the driver moves forward that is the red or hot end. If it move backward, the lead to the + is actually the neutral.

Herman, what you say is contrary to my experience.
eldartford
4,262 posts
 
Tbg...Unless it is a JBL driver, which goes the opposite way.
tbg
5,263 posts
 
Opps, you are right for compression drivers, and it will be hard to see what direction they go. I guess you could put a candle in front and see the drag on the flame.
peter_s
1,320 posts
 
In my experience I concur with Herman. You listen for the voice being between the speakers, not outside of the two speakers.
More to discover