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  1. #1

    Crossover problem


    Let me start by explaining the setup: I have a Behringer CX3400 Super Pro which I use in Stereo 2 Way operation. The L&R outputs of my mixer feed into each input channel on the crossover. The High Output from each channel goes to its own amp which powers my Top speakers, and the Low outputs go into an amp which powers the bass bins.

    The problem I'm having is that, no matter what X-over frequencies I've tried, only the horns in my top speakers produce any noise and the cone doesn't seem to produce any mid signal. It's as if the mid-frequencies disappear. I have tested the speakers without the xover to make sure nothings blown and everything works fine.

    The only thing I can think of atm is that the cables for my tops are quite thin and cheap, so would this result in poor delivery of the mid signal if their is a lot of high freqs aswell? Or is there another solution?


  2. #2
    Senior Member SC358's Avatar
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    May 2005
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    If your amps and bass speakers have been confirmed as ok, then your down to the wire and crossover (low) output.

    How thin & long is the wire your talking about? Your speaker wire should really be no thinner than 18awg. (imho).

    If your wires are really ok, then the only problem left is the crossover system. Take a voltmeter (if you have one) and measure the crossover outputs. Maybe check to see if you blew a fuse on it's output (a protective circuit).

    That's all I can think of for now.
    Relationships are based on compromises - behavior accepted is behavior repeated.

  3. #3
    From looking at the manual online I'm going to suggest this... Make sure the x-over frequency button is on X1 so taht you are crossing the frequency over in teh low range, set teh x-over frequency to 140 and see what happens... if the switch is set to X10 you will be cutting out frequencies that are in the midrange and they will be lost (subs aren't made to reproduce them)... Hope this helps...

  4. #4
    That did help, turns out I was sending frequencies to the bass bin that they couldn't handle, and so that section of the signal was lost.

    Live and learn. Thanks for your advice.


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