Home› dbx User Forum› dbx Archive Threads› DriverRack PA & DriveRack PA+› PA General Discussion

sound cutting out

chunkylover73chunkylover73 Posts: 6
edited September 2010 in PA General Discussion
I am getting an intermittant signal loss to the amp from the DRPA+ which is resulting in a loss of sound. I tried turning off the limiter and compressor, changing cables, turning off the AFS but nothing is working. The signal is lost to both the tops and subs. Everything works fine when I bypass the DRPA+ so I am certain it is the problem. Any troubleshooting advice would be appreciated.

Comments

  • GadgetGadget Posts: 4,915
    Have you tried switching to a different preset? Try setting up 2 identical presets side by side...and when the problem occurs switch presets and see if the problem goes away.. I'm wondering what is happening voltage wise with youtr system... If it drops too low the DRPA+ could stop[ passing sound.

    You didn't say if shutting the unit off and back on brings back the sound? I am assuming it does...

    You may need to do a reset, but make sure you have the settings of anything you have changed in your user presets.. it WILL be lost in a hard reset...

    Gadget
  • chunkylover73chunkylover73 Posts: 6
    I tried different presets but the sound still cut out. I also tried a hard reset but that didn't help. Just to clarify, the sound cuts out for about a second and then comes back on. I connected a voltmeter to the output of the amp and the voltage does vary more (more peaks and troughs) when the signal passes through the driverack than when it bypasses it.
  • GadgetGadget Posts: 4,915
    The voltage I'm talking about is the Edison... the 120volt wall supply... what is THAT doing?
  • chunkylover73chunkylover73 Posts: 6
    According to the power conditioner the voltage was about 120V all night.

    I double checked everything and I noticed that the gain button on the rear was in the +4 dbu position rather than the -10 dbv where it should have been. I must have accidentally pushed it when inserting a cable. Would this possibly cause the cutting out?
  • GadgetGadget Posts: 4,915
    No, I doubt it.. you must be running a DJ setup? your amps don't have XLR inputs? Check the power cable is seated all the way, I have also seen complaints that the power cord is bad at one end or another so try a different one and see.. but the display does not go bad when the unit stops passing audio?
  • chunkylover73chunkylover73 Posts: 6
    It was a band setup with DJ music in between sets. I am using all balanced XLR cables (from the mixer to the driverack and from the driverack to the amp). The display screen didn't change or flicker when the audio stopped playing. I'll change the power cord and see if that helps.
  • GadgetGadget Posts: 4,915
    You should also be using the +4 setting NOT -10..+4 is for pro audio balanced setups like you have there...
    G
  • chunkylover73chunkylover73 Posts: 6
    Okay, but when I set the gain structure as outlined the meters on the mixer match with the meters on the driverack when it is on -10dbv. When it is on +4dbu the red threshold lights come on. Maybe I'm not setting it properly, I'll go back and try again.

    Either way, it looks like I'll be returning this unit as it is still under warranty. Hopefully the next unit will be more reliable.
  • James85James85 Posts: 63
    Are you using a Mackie board? 16 ch VLZ2? I had the same problem. It was the mixer, which is famous for the signal loss problem.
Sign In or Register to comment.