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speaker type in B-15N?

Discussion in 'Amps and Cabs [BG]' started by joplin, Sep 17, 2008.


  1. joplin

    joplin

    Aug 31, 2008
    NYC
    I'm trying to determine what the speaker type is in an Ampeg B-15N Thiele cabinet - the speaker has a large square ceramic magnet - the entire speaker is black. On the back of the magnet there are three rows of text:

    6930009
    4327129
    8-OHMS

    [​IMG]

    Not sure what the 2nd line implies. The 1st line leads me to believe the speaker was manufactured late 1969... I could be wrong.

    Any ideas what kind of speaker this is?
     
  2. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Ampeg Amps, EMG Pickups
    I tried looking it up, and the closest code I could find was 433, which is Cleveland's code. But the speaker was made the 29th week of 71, since it's the second line that gives you the date of manufacture. In 71, CTS and Altec were the OEM suppliers for Ampeg. Your speaker looks a lot like a CTS, but their code is 137.
     

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