what is my impedance?

Discussion in 'Amps and Cabs [BG]' started by peteroberts, May 30, 2002.

  1. I have an SWR Workingman's and 2 Eden cabs, a 210XLT and a D115T...they are both rated at 8 ohms. There are 2 speaker outputs on the amp...when I use 1 for the 115 and 1 for the 210, is my total impedance 4 or 16 ohms? What if I only use one output, go to my 210, and from the 210 out to the 115 (like a daisy chain), what is my impedance in this setup? I am just kinda confused which setup is series/parallel.
  2. Hategear

    Hategear Workin' hard at hardly workin'.

    Apr 6, 2001
    Appleton, Swissconsin

  3. I'm guessing that most amps are wired the same as a most speaker cabs, as I have no experience of SWR or Eden.

    Anyway, I expect that the speaker outs a wired parallel, as are the speaker cabinets.

    So, your total impedance either way is:-

    1/Rt = 1/R1 +1/R2

    1/Rt = 1/8 +1/8 = 2/8 = 1/4

    Therefore Rt = 4 ohms.

    Rt is the total load or impedance your amp sees! I believe from this your impedance will be 4 ohms.