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Cabinets in parallel - Power split

Discussion in 'Amps and Cabs [BG]' started by pmaraziti, Apr 4, 2006.

  1. pmaraziti

    pmaraziti Supporting Member

    Feb 12, 2006
    Hi TBers,

    Here a technical question. I know how to calculate impedance for cabs in series and in parallel. What I don't understand is in the case of parallel, how power is splitted.

    Let me do an example. You have an amp with 1000 W@4Ohms and 2 cabs (each 8 Ohms) in parallel, one capable of handling 400 W, the other 800 W.

    Would there be any dangerous situation for that setup at full power ?
    How the power of the amp is distributed (e.g. 50/50 ?) ? Does it depend on the impedence ?

    Thanks a lot !

    Good night,
  2. Blueszilla

    Blueszilla Bassist ordinaire

    Apr 2, 2003
    The Duke City
    Both cabs will be fed equally since their impedance is equal. Obviously, the 400 watt cab will reach it's limit before the other. Yes it could be a problem if you exceed it's rating for long.
  3. LoveThatBass


    Jun 28, 2004
    Never drive the amp into heavy clipping of the signal. This can damage a speaker. Other than that, you will not hurt a thing.
  4. Very unlikely you would use "full power" continuously!

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