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Question about PA speaker wiring

Discussion in 'Live Sound [BG]' started by LarryO, Apr 15, 2010.

  1. LarryO


    Apr 4, 2004
    We have an old PA system that we use only for vocals. The speakers each have a 15", 2 piezo tweeters and 1 horn. The crossover in one of the speakers is fried and the 15s are mismatched. I was considering replacing the 15s with a matching pair but wiring the cabinet in series. Since these speakers only cover vocals I think It should sound fine but I was wondering about the impedence.......won't wiring all the speakers raise the impedence and decrease the power amps output? What would the effects of this wiring be or is it just a bad idea?
  2. testing1two

    testing1two Supporting Member

    Feb 25, 2009
    Southern California
    It's not a good idea for many reasons. The crossover is imperative unless you want to cook your tweeters. Replacement crossovers are inexpensive and will return your cabinet to optimal performance. In terms of the mismatched 15's, it's always best to have matched components but if you have an eq for each side, you can at least tune them to sound fairly close to each other.


  3. LarryO


    Apr 4, 2004
    Thanks for the link. All of the crossovers I was finding were much much more than these. At that price this thread is done. I'm just replacing the 15s and crossovers....Thanks

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