Switching cab from 4 ohm to 8 ohm?

Discussion in 'Amps and Cabs [BG]' started by pin_head_47, Aug 5, 2003.

  1. Hello everybody, just was wondering something before i bought a new cab, and could use some technical advice... im looking into buying an avatar b212 in the next few months, and i want to get the 4 ohm version so i can get the full power out of whichever head i choose (havent decided yet, most likely a SVT-III Pro or a SWR400). If i get some cash later on, id like to add an 8ohm b210 on top of that, but then i would have to switch the 212 to 8 ohm as well. How much hassle is this, and how do i go about doing it? Is it just a matter of rewiring? :confused: Thanks for any info. :D

  2. Jim Dombrowski

    Jim Dombrowski Supporting Member

    Jan 16, 2002
    Colorado Springs, CO
    Changing a cabinet from 4 ohms to 8 ohms requires changing the speakers, or having the impedance of the existing speakers changed (usually at the factory or thru a reconing service).

    Typically, in a cabinet with two speakers (such as a 2x10), a 4 ohm cabinet has two 8 ohm speakers in parallel, while an 8 ohm cabinet has two 4 ohm speakers in series (or two 16 ohm speakers in parallel).