Ampeg speaker terminals (which is positive?)

Discussion in 'Amps [BG]' started by fish bulb, Jul 24, 2009.


  1. fish bulb

    fish bulb

    Joined:
    Jul 20, 2009
    Messages:
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    I'm rewiring my Ampeg 810 cabinet that has 4 speakers with unmarked terminals and 4 marked. There is a green dot near one of the terminals, does this indicate positive?

    Since they are unmatched speakers I'm trying to avoid any phase problems. To do so would i just make sure that i get the positive to the positive and the negative to the negative? (they're all in parallel)

    Thanks!
     
  2. JimmyM

    JimmyM Supporting Member

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    Endorsing: Ampeg Amps, EMG Pickups
    I don't know about your cab, but green is pos in mine and black (or dark blue, I think is what's used in mine) is neg. And as you face the cones, the tabs in my CTS's go like this:

    _ | | _

    + + - -
     
  3. BassmanPaul

    BassmanPaul Gold Supporting Member

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    If in doubt do the battery test. If you apply a 9V battery to each speakers terminal the cones will move. When they move out, away from the magnet structure, the positive battery terminal is connected to the positive speaker terminal. Mark that terminal with a plus with a felt tip pen. Wire the speakers to suit the markings you made.

    Paul
     
  4. bassyeah

    bassyeah

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