Random Crackling Noise

  • Hello,

    I own the Kemper Power Head and was wondering if anyone has run into the issue I have. I keep getting this random crackling popping noise randomly every maybe 30 seconds. I tried all the following but it still does it:

    - I updated the firmware to latest 8.7.1.36318.

    - I hear the noise coming out of the main out and headphones out as well.

    - It happens whether I'm playing or not.

    - Tried switching profiles/presets but no change.

    - I still get it even when I disconnect the front input cable all together from the Kemper.

    - Happens randomly every maybe 20 seconds or so.


    I recorded the noise on my computer and uploaded it to the link below:

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    Attached is a screenshot of the recording.


    Thanks !

  • Just like this? I traced my problem down to a 1-Spot Power Adapter being plugged in to the same surge protector as the Kemper. I unplugged the 1-Spot and the annoying clicking went away.


    Clicking starts at 6 seconds...

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    Larry Mar @ Lonegun Studios. Neither one famous yet.

  • If it comes out of the headphones too and without a guitar connected it seems a support request is in order.

    Kemper PowerRack |Kemper Stage| Rivera 4x12 V30 cab | Yamaha DXR10 pair | UA Apollo Twin Duo | Adam A7X | Cubase DAW
    Fender Telecaster 62 re-issue chambered mahogany | Kramer! (1988 or so...) | Gibson Les Paul R7 | Fender Stratocaster HBS-1 Classic Relic Custom Shop | LTD EC-1000 Evertune | 1988 Desert Yellow JEM

  • Thanks for all the quick replies everyone ! However I was able to just get it fixed, a new firmware version (8.7.3.36999) was just released today right after I posted this thread . I just upgraded to that from 8.7.1.36318 and so far the clicks seem to go away, fingers crossed it stays that way.

    @Wheresthedug I'm not using any SPDIF connections.

    @BayouTexan yes the clicks sound exactly like that. It's good to know another power supply was interfering, very useful information in case I run into this problem again in the future.

  • Good! Let's hope it stays fixed!

    Kemper PowerRack |Kemper Stage| Rivera 4x12 V30 cab | Yamaha DXR10 pair | UA Apollo Twin Duo | Adam A7X | Cubase DAW
    Fender Telecaster 62 re-issue chambered mahogany | Kramer! (1988 or so...) | Gibson Les Paul R7 | Fender Stratocaster HBS-1 Classic Relic Custom Shop | LTD EC-1000 Evertune | 1988 Desert Yellow JEM

  • Hopefully the new firmware is a permanent fix. I just went through this and this is what support had me do which totally fixed it:


    Downgrade to 8.5, reset Init Globals, reupdate to current firmware, done.