Question BK XLS200 MK2 HUM

Discussion in 'Subwoofers' started by Liammonty123, Dec 28, 2016.

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  1. Liammonty123

    Liammonty123
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    Hi guys, I recently purchased a BK XLS200 MK2 and have been blown away by its performance. However I have noticed an audible hum when not in use. The sub only hums with the rca LFE cable connected and this grows louder as he gain increases. Any suggestions on what the problem is or how to avoid it would be great! Many thanks!
     
  2. Deleted member 598831

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    Get a screened rca cable. If it stops when cable is removed then its not the sub.
     
  3. Liammonty123

    Liammonty123
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    The one I've currently got is supposedly shieldEd?
     
  4. Deleted member 598831

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    Try with avr powered down, and sub still on.
     
  5. Liammonty123

    Liammonty123
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    With avr off the hum is still present and increases with the gain.
     
  6. Trojan

    Trojan
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    Have you tried any of the suggestions you were given in your thread in the subwoofer section?
     
  7. Deleted member 598831

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    Is avr connected to internet via Lan
     
  8. Liammonty123

    Liammonty123
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    I've emailed BK but still waiting for a response so thought someone on here might have the answer, I was also wrong on that thread in saying the hum was present without the avr connected!
     
  9. Deleted member 598831

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    Then try another cable.

    Sounds like ground hum
     
  10. Andi C

    Andi C
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    Unplug everything other than the power, if you hear the hum it's the sub.
     
  11. Deleted member 598831

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    ;)
     
  12. Liammonty123

    Liammonty123
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    With only the sub plugged in it is silent
     
  13. Andi C

    Andi C
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    My work here is done :)

    On a side note, I had this with a cheap screaned cable. I bought a QED cable & the hum was gone ! I don't use it & you can try it if you like ?
     
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  14. Liammonty123

    Liammonty123
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    UPDATE: I have unplugged the coax ariel cable from the back of my TV and wdyk the hum has gone! I don't watch free view TV often so this isn't a problem!
     
  15. Deleted member 598831

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    Bloomin freeview! You pay for a sub so pay for tv in future!:laugh::D
     
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  16. Deleted member 598831

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    What a kind gesture! Wait..........which cable?????..........The cheap one or the QED?:D

    Only kiddin,
     
  17. Liammonty123

    Liammonty123
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    Fair point:rotfl::D
     
  18. Andi C

    Andi C
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    Blooming hell ! Who would of thought the grounding would affect it that far down the line. Shows that the BK subs are sensitive equipment !
     
  19. Liammonty123

    Liammonty123
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    Very kind gesture, I'll order a QED or mark grant one online tomorrow anyway so ill let you hold onto the cable! Thanks a lot anyway though!
     
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