Burning Smell?

dris
dris Posts: 4
edited February 2006 in Car Subwoofer Talk
just recently got a polk 2124dvc and a c500.1 after a week of playing it low to "break in" the sub. it now produces a burning smell when played loudly. just wondering if this is because it is new or am i putting too much power to it? isnt it rated 400w rms per coil?
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  • neomagus00
    neomagus00 Posts: 3,899
    edited February 2006
    actually, that sub is 360W total... i called polk and they gave me a kinda sketchy answer, but i'm nearly positive that's correct...

    so if you're putting a c500.1 on it, you could be hitting it with close to 700 watts - bad! burning smell is bad... turn the gains down pronto, before you destroy the thing - if you haven't already...
    It's not good, very fundamentally simply not good. - geolemon

    "Its not good enough until we have real-time fearmongering. I want my fear mongered as it happens." - Shizelbs
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  • dris
    dris Posts: 4
    edited February 2006
    i dont understand... why i didnt hear any distortion then?
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  • neomagus00
    neomagus00 Posts: 3,899
    edited February 2006
    maybe you have bad ears? :D

    what size box is the sub in?

    it is possible that you're just cooking off residues from manufacturing, or something like that, but i honestly don't find that likely...
    It's not good, very fundamentally simply not good. - geolemon

    "Its not good enough until we have real-time fearmongering. I want my fear mongered as it happens." - Shizelbs
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  • dris
    dris Posts: 4
    edited February 2006
    its in a .8cu ft sealed box
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  • neomagus00
    neomagus00 Posts: 3,899
    edited February 2006
    yeah, that's about right... it's probable that the sub is shot... does it make a grating noise, or stick, when you push the cone?
    It's not good, very fundamentally simply not good. - geolemon

    "Its not good enough until we have real-time fearmongering. I want my fear mongered as it happens." - Shizelbs
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  • dris
    dris Posts: 4
    edited February 2006
    well the sub still sounds good so i assume its not blown....i'll check next time i get in my truck.
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  • MacLeod
    MacLeod Posts: 14,358
    edited February 2006
    The MM2124 is rated at 400 watts RMS. If youre running a 500.1 at 2 ohms then youre sending over 600 watts RMS to is and Id be willing to bet you that youve also got the gains too high. So youre pounding the hell out of that sub and what likely is happening is its building up more heat in the voice coil than it can dissipate. Hence the burning smell. If it werent for the exceptional build quality of the Polk sub, youd have a real fancy paper weight on your hands.

    You can still use the 500.1, just turn the gain WAY down and use some common sense with the volume and bass levels. Remember, its just a 400 watt sub and even if you give it 700 watts and it holds up, it still wont be much louder, if at all, than a 400 watt sub.
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