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my 10 is making a buzzing sound

Discussion in 'Car Subwoofers' started by pedro quiroga, Jun 12, 2008.

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  1. cccullen

    cccullen Full Member

    If you can get that then you will be slamming!!!
     
    cccullen, Jun 20, 2008
    #21
  2. pedro quiroga

    pedro quiroga Well-Known Member

    http://www.sengpielaudio.com/calculator-ohm.htm

    according to this site my amp is making 695 watts at 2 ohms. thats not right.

    while i was checking the sub i mesured the amps voltage. and at 50hz i got 40 volts at 2 ohms.


    what is it really closer to?
     
    pedro quiroga, Jun 20, 2008
    #22
  3. cccullen

    cccullen Full Member

    695watts at 2ohms = 37.28 volts.

    If you got 40v then your were getting about 800watts at 2ohms.

    Is my calculation right? watts x number of ohms then get the square root = volts?
     
    cccullen, Jun 20, 2008
    #23
  4. pedro quiroga

    pedro quiroga Well-Known Member

    i dont think that can be right. its rated to do 450 at 12.5v. i was getting a hair under 14.

    that just sounds like too much.with out a clamp meter i wont know for sure what its putting out.
     
    pedro quiroga, Jun 20, 2008
    #24
  5. cccullen

    cccullen Full Member

    cccullen, Jun 20, 2008
    #25
  6. aznboi3644

    aznboi3644 Full Member

    This is just a rough calculation...without knowing the current going through the sub we do not know the impedance at that particular frequency.
     
    aznboi3644, Jun 21, 2008
    #26
  7. pedro quiroga

    pedro quiroga Well-Known Member

    so how close can it be? 695 @ 2ohms is a lot seeing that its rated to do 450 at 12.5v.

    and while it was running the amp was getting 13.73 ish volts. then i checked the sub out again and got the 40v number.
     
    pedro quiroga, Jun 22, 2008
    #27
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