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  1. #1
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    Audio level too low after active XOVER

    I purchased an active crossover to be able to use separate amplifiers for BASS and MID/HIGH. Now it appears that the input that my amps receive from the crossover are way to low to get them to "full throttle".

    When I connect my mixer directly to the amps (one at the time) everything is fine. regarding the sound level.

    Now my mixer has RCA output and the crossover has XLR input and I use a converter cable between the two. Can this be the reason of the low signal output? (as in the XLR needing the double voltage that the RCA delivers?)

  2. #2
    Senior Member SC358's Avatar
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    Hi jansb000,
    Your observation and description is very helpful, yes it is a very good possibility that you have a mismatch. Correcting it with a, "converter cable", doesn't always solve problem. Your problem (imho) is 2 fold: power & impedence mismatch. You'll need the technical specs of your manual for both pieces of equipment to confirm the output of the mixer and the input of the active crossovers. To make this correction you would need to do one of two things. Either exchange the crossovers and get the proper match OR purchase a matchbox. This matchbox will convert the output of the mixer to match the required signal necessary for the crossovers to work but you have to specify the technical requirements to the salesman.

    SC358
    Relationships are based on compromises - behavior accepted is behavior repeated.

  3. #3
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    The converter cable has XLR pin 1 and 3 bridged. This is as the manual of the xover states for unbalaced XLR. Furthermore, the manual says that this will be recognised and the input will be switched to unbalanced mode, boosting the input signal with 6dB. This seems all ok (but I did not measure voltage levels yet).

    Could the problem be on the output of the XOVER?

  4. #4
    Senior Member SC358's Avatar
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    Very cool that it can auto-sense, not many pieces of equipment do that. At this point, then yes I'd suspect the xover has a problem. If you can, bring it to where you had purchased it and have them confirm the problem.
    SC358
    Relationships are based on compromises - behavior accepted is behavior repeated.

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