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  1. #1

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    Default How do I know if my sub is blown?

    When the sub is on, for 1 there is hum or buzz, I've tried 3 different outlets but still there. when music is playing there is a buzz or tick sound it's not a good bass sound at all.
    It's weird the sub hasn't been used in a minimum of 2 months, I get a new receiver plug it in turn on the sub and the buzz/hum change outlets and then the clicking sound.. terrible!

    I'm pretty sure it is, I'm just looking for a definitive answer.

    Thanks all!
    Pete

  2. #2

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    Here's some video so you can hear:
    http://youtu.be/QMDle7QrdeM

    http://www.youtube.com/watch?v=NlfuiOa2yIo

    Any help is appreciated.

    P

  3. #3

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    If your sub has a content look on it's face it has probably been blown!!!!!

  4. #4

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    Quote Originally Posted by decal View Post
    If your sub has a content look on it's face it has probably been blown!!!!!
    LMAO... Good one

  5. #5

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    I would recommend trying to hook it up to a friends gear. If it works you might have a ground problem at your house. Otherwise it probably is blown.

  6. #6

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    As far as I know it doesn't have a smile on it's face!! LOL that's a classic response btw...

    i guess the issue is I don't have any friends with a home theater, my crappy setup was the only one...

    I will say it worked fine with my onkyo receiver.. I swapped the onkyo for the marantz on thursday and it started humming... where the hell could the ground be coming from? Why all of a sudden?
    I'm going to plut the onkyo back in and see if the issue is the same..

    -Thanks
    Pete

  7. #7

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    I hooked my kids Ipod up to the sub to test it and it's toast :( I'm SOL.. searching CL for a new sub ...

    damn shame! Been a technightmare of a year for me..

    -P

  8. #8

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    well there are two things that can "blow". One the amplifier and the second the voicecoil/driver... I had the problem that all of a sudden when I was listening to music, the sub made a whining noise and did so even when no source was connected to it (just the power cord). After checking the voice coil (basically gently push on the driver and see if it travels back and forth without any scraping sound)... the usual suspect is the amplifier. you may be able to get one from partsexpress for cheap (may need to retrofit to get it in the cabinet though)... however if the sub doesnt cost more than 3-400$ you may be better off just getting a new sub.
    Fronts: Wharfedale diamond 9.6
    Sub: Wharfedale sw250
    Rears: Wharfedale diamond 9.1
    Center: Paradigm cc-350
    Pre-amp: Oppo dv981hd
    Amp for fronts: Parasound hca-1500a
    Amp for rears: Adcom gfa-5400
    Amp for center: Marantz MA500 monoblock
    Polk multimedia speakers for PC setup

  9. #9

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    so let me ask, I plugged the amp into several outlets one floor and without connecting it to the amp all I get is a hum/buzz.
    I still don't know how this happened, I didn't do anything but buy a new amp.

    thanks
    -P

  10. #10

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    Quote Originally Posted by decal View Post
    If your sub has a content look on it's face it has probably been blown!!!!!
    Heh, heh, heh, heh, heh, he said blown.

  11. #11

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    sorry man, but that squawking sound is so funny to me.. coming from a subwoofer.

    seriously, i'm rolling here.

    sounds like the voice coil is fried.. IE: blown

    contact polk audio customer support on Monday and see what they recommend for a fix...
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert

  12. #12

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    Inspect the woofer. Look at the cone on the sub woofer and see if there are any cracks. The cone is the main part of the front of the speaker: it resembles a hubcap and is where the sound comes out. Cracks here are the most obvious symptom of a blown woofer. However, a cone that looks normal may still be blown.

    Read more: http://www.ehow.com/how_7388998_tell-woofer-blown.html

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