Help: Use New Cab Through Old Amp?

Discussion in 'Amps and Cabs [BG]' started by arcticmonkey, Jun 20, 2008.

  1. arcticmonkey


    Jun 9, 2008
    Hey Guys,

    I have two amps:
    [1] An Avatar 4x10 with a Speaker input, and two 1/4 in inputs.

    [2]An Ampeg BA115T with two 1/4inch inputs a headphone input (1/4 inch) and a "Mic In" outlet.

    Is there anyway I can use my nonpowered Avatar 4x10 using a speaker-to-1/4inch cable or something?

    Please Help Thanks! :help:
  2. RickenBoogie


    Jul 22, 2007
    Dallas, TX
    You have 1 combo amp, and 1 speaker cab. If that combo amp has an ext. speaker output, and if the total load doesn't go under the min. rating of the amp, you can use a speaker cable to connect the two.
  3. anderbass


    Dec 20, 2005
    Phoenix. Az.
    It can be done, but you have two issues to overcome:
    Your BA115T has no extension speaker jack.
    Its internal speaker is a 4 ohm model and your combos amp section is rated to go no lower than 4 ohm.

    So... if you were to install an extension speaker jack you'd have to disconect the combos internal speaker while using any aditional cabs or risk damaging your combos poweramp section.

    I did this mod with two of my similar Ampeg combos. I simply located the two speaker wires, cut them and instaled male and female (1/4") speaker jacks and plugs. This allows the combo's internal amp to power other cabs, (8 or 4 ohm) or to connect other amps to the combos internal speaker, or also to just use the combo normally by simply leaving these plugs connected.

    I didn't want to drill a speaker jack hole, so I just made a bracket to secure the female speaker jack.

    (male plug with an extra 2 foot cord is connected directly to the speaker)