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This topic contains 3 replies, has 2 voices, and was last updated by avatar Jason Hicks 3 years ago.

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  • #2561
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    Joseph
    Member

    Following a power outage yesterday my Bravus 10D developed a low rumble sound (frankly, I'm not sure it was related to the power outage but it's when I first noticed it).

    If I mute my AVR (a Yamaha RX-V1900) the rumble continues.  If I power down the AVR the rumble stops.

    Thoughts on the cause and fix?

     Thanks.

    #2842
    avatar
    Jason Hicks
    Member

    Sorry to hear about the trouble with the sub.

    Do you think maybe it got moved from the "Auto" mode to the "On" mode, the background noise of the amp is usually more apparent in the "On" mode, so that's the first thing I would check. 

    Other than that, does turning up the channel level at the receiver and turning down the sub volume alleviate the issue?

    Is it just a background noise or is it really loud?

    #2741
    avatar
    Joseph
    Member

    Thanks for the reply Jason.

    It should have gone back to Auto when the power came back on but just to be sure I unplugged it and plugged it back in again.  That put it in auto and it was quiet for awhile.  Then the rumble started again.  I think it starts after the bass first gets directed to the sub.

    I adjusted the volume.  If I lower it the sound is still there but just not as loud.  Raising the volume just makes it louder.

    I thought maybe the power cord and cable were touching but that's not the problem.  The rumble does go away completely if I turn the AVR off (but it rumbles if I mute the AVR).

    It's not really a background noise.  I tried a CD that has a lot of bass in it.  When the bass is booming you can't hear the rumble at all (even up close).  When the bass isn't going to the sub you can hear the rumble.  That's what makes it annoying.  When I first heard the noise I thought the A/C was running.

    Stumped.

    #2843
    avatar
    Jason Hicks
    Member

    Hmmm well if you can't get it to go away by boosting the receiver volume and reducing the sub volume then I think you should send it in for repair so we can take a look at it.

    Feel free to give us a call at 888-880-8992, thanks! 

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