How many ohms is the AI Contra internal speaker?

Discussion in 'Amps and Cabs [BG]' started by wiggleworm, Jun 5, 2003.

  1. wiggleworm


    May 29, 2003
    I'm having trouble using a 4 ohm extension cab with my Acoustic Image Contra... the sound cuts in and out... maybe it's mismatched with the internal speaker?
  2. Suburban


    Jan 15, 2001
    lower mid Sweden
    Spec says 4 ohms.
    There have been a few threads re. bad response on 2 ohms from the AI's. But it seems they have upgraded, to increase the tolerance of the amp.
    Probably, the real problem is the impedance variations (tolerances) of the speaker cabs. While the speakers claim to be 4 ohms, they may really be 3.4 - and then the amp can only take 2, nothing less, while you try to make it drive 1.7...
    And impedace also varies with frequency...

    Edit: Contact AI for their comment! They have addressed this issue before...