speaker connection, distortion

Discussion in 'General Electronics Chat' started by bug13, Sep 28, 2014.

  1. bug13

    Thread Starter Well-Known Member

    Feb 13, 2012
    1,208
    38
    Hi guys

    Today when I tried different speaker in an intercom system, I noticed that there are + and - on some of the speakers I tried.

    Do I have to connect + and - properly? Will that make a big different in term of total harmony distortion (THD) ?

    Thanks guys!
     
  2. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,044
    3,807
    No, it just makes a difference when you have multiple speakers (that way you can purposely connect in phase or out of phase). Without the red(+)/black(-), you won't know easily.
     
    bug13 likes this.
  3. crutschow

    Expert

    Mar 14, 2008
    13,009
    3,233
    As GopherT noted speaker polarity is only of concern if you have more than one speaker in the same location. It has no effect on THD (Total Harmonic Distortion). It does affect bass response with multiple speakers.
     
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