/ Register

Ohm question

Discussion in 'Amps and Cabs [BG]' started by millner, Dec 3, 2005.

  1. Dec 3, 2005 #1
    millner

    millner Guest

    Sep 26, 2005
    I was wondering about this at work today and was curious if somebody could answer this for me...

    What would/wouldn't happen if I ran a 4ohm cab and an 8ohm cab at the same time? Would the 4ohm run at 4 and the 8 run at 8? Would they each run at 8 (and could this put the 4ohm cabs at risk)? Would they each run at 4 and possible damage the 8ohm cab?

    This may be a commonly known fact but I just can't say I know the answer. Any input would be appreciated!
     
  2. Dec 3, 2005 #2
    tadawson

    tadawson

    Aug 24, 2005
    Lewisville, TX
    Cabinets don't "run at" a given ohmage, they are BUILT to a specific ohmage, and stay that way for life, at least unless you blow them up. . . .

    As such, a 4 and an 8 together will give your amp a load of 2.6 ohms, which will be bad if it has a 4 ohm minimum. The 4 ohm cabinet will also get 2/3 of the power of the pair.

    - Tim
     
  3. Dec 3, 2005 #3
    billfitzmaurice

    billfitzmaurice Guest Commercial User

    Sep 15, 2004
    New Hampshire
    Owner, Bill Fitzmaurice Loudspeaker Design
    Impedance.
     
  4. Dec 3, 2005 #4
    petch

    petch Gold Supporting Member

    Mar 25, 2001
    Medina, Ohio
    Thank you! "Ohm" should be preceded by a number.