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Wiring cabs in series without bannana clips?

Discussion in 'Amps and Cabs [BG]' started by Son of Bovril, Sep 12, 2005.

  1. I have two 4 ohm EDEN 210XST cabs.

    They each have two 1/4 jacks and two speakon jacks - how would I connect these up so as to run them at 8 ohms in series?
  2. billfitzmaurice

    billfitzmaurice Commercial User

    Sep 15, 2004
    New Hampshire
    Owner, Bill Fitzmaurice Loudspeaker Design
    Replace one of the 1/4" jacks in one cab with a normally closed (NC) switching jack series wired with the drivers in that cabinet. With no plug inserted signal will jut pass through it to the drivers. When a plug is inserted connecting the second cab they will be series wired.
  3. I don't fully understand what you are saying?I don't suppose you have a diagram of how that would work do you?

    So the cab would work normally in parallel unless a 1/4 jack was plugged into that one output, in which case it would then run i series??
  4. billfitzmaurice

    billfitzmaurice Commercial User

    Sep 15, 2004
    New Hampshire
    Owner, Bill Fitzmaurice Loudspeaker Design
    The signal goes into the + lug of the jack and out the - lug. With the switch connecting the two being normally closed it does nothing when not plugged into. When the cord from the second box is plugged into it the signal goes through the second box in series (out on the +, returned on the -) with the first.
  5. Lowtonejoe

    Lowtonejoe Supporting Member

    Jul 3, 2004
    Richland, WA
    This is from alt.guitar.bass

    Michael Putrino responded to Brian.


    "Brian Running"
    wrote in message

    >> I have a pair of 4-Ohm SWR cabs and my 750X has a
    >> 4-Ohm practical minimum. All the docs seem to
    >> indicate that the standard ways to hook up these two
    >> cabs are all parallel, giving me 2-Ohms.
    >> Is there a non-surgical way to series them for 8-Ohms?
    > Yes -- but it would require surgery on a cable. + from amp to + on 1st
    > cab, - on 1st cab to + on 2nd cab, - on 2nd cab to - on amp. Essentially,
    > you take an ordinary speaker cable, and somewhere in the middle of it, you
    > take another speaker cable with a phone plug on one end only, and splice
    > the other end into only one conductor of the first cable. You end up with
    > a Y cable. Can you picture what I mean? It's not hard at all.
    Or you can create a little break-out box with three female jacks on it: one
    for the amp, and two others for the speaker cabinets.

    The box would be wired internally like this:

    Plus side of amp jack connected to plus side of cabinet1 jack.
    Minus side of cabinet1 jack connected to plus side of cabinet2 jack.
    Minus side of cabinet2 jack connected to minus side of amp jack.


    Then you can plug any normal speaker cables into this break-out box.

    Here'e a pic I made just for you.

    This is your answer.



  6. James Hart

    James Hart

    Feb 1, 2002
    Endorsing Artist: see profile
    I run a pair of 4 ohm cabs in series myself.

    I paid www.procablesnsound.com to build me a custom series cable.... Top shelf stuff that was actually cheaper than a pair of regular speaker cables.