8 Ohm cabs

Discussion in 'Amps and Cabs [BG]' started by air_leech, Nov 26, 2000.

  1. air_leech


    Sep 1, 2000

    hi all. I been wondering, what will happen if I plug a single 8 ohm cab to a 4 ohm output jack in these cases:

    *the heads 4 ohm wattage rating is higher than the 8 ohm cab rating

    *the 8 ohm cab rating is higher than what the 4 ohm jack of the amp head puts out

    and thanks in advance for all your answers

  2. Munjibunga

    Munjibunga Total Hyper-Elite Member Gold Supporting Member

    May 6, 2000
    San Diego (when not at Groom Lake)
    Independent Contractor to Bass San Diego
  3. rllefebv


    Oct 17, 2000
    Newberg, Oregon
    You'll be fine, just have somewhat less power. Doubling the ohms results in about 2/3 of the actual power. For instance, an amp that puts out 400 watts into a 4 ohm load will put out somewhere around 250 watts into 8 ohms. Be extremely careful about going the other way though...never plug a 4 ohm cabinet into an 8 ohm amp if you're going to be playing near peak volumes. Sadness will result...

    Have fun,