XLR connections

Discussion in 'DIY Discussion' started by la toilette, Dec 1, 2009.

  1. la toilette

    la toilette Downright stupid

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    Recently bought a pair of Rogers LS5/9's, and they've got xlr connections on them - so just bought some female xlr's from Maplin. Having had a quick look on the web it seems that pin 2(+) and 3(-) are the ones to connect my speaker cables to, but I wanted to check with those who know before I do it.... :)

    Presumably pin 1 (ground) is left unconnected...?
     
    la toilette, Dec 1, 2009
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  2. la toilette

    themadhippy seen it done it smokin it

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    pin 1 earth, 2+, 3-, is the standard for low level signals,speakers can use any combination of the pins depending on the manufacturer,although 1 and 2 is the most common.you could use a 1.5v battery and briefly try each combination of terminals.once you've identified the 2 terminals check weather the cone moves in or out ,if it moves in the battery is + is connected to the speaker - if it moves out battery + is to speaker +
     
    themadhippy, Dec 1, 2009
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  3. la toilette

    la toilette Downright stupid

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    Ah of course, the battery test, good thinking! Why didn't I think of that? :eek:

    Cheers!
     
    la toilette, Dec 2, 2009
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  4. la toilette

    karlinamillion

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    Are these ex-BBC speakers, they may be wired for Bi-amping if they are. Open them out & have a look.
     
    karlinamillion, Jun 15, 2010
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  5. la toilette

    flatpopely Trade - AudioFlat

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    And the other thing is that the BBC used XRL not XLR (pin 1 2 3) wiring IIRC.
     
    flatpopely, Jun 26, 2010
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  6. la toilette

    themadhippy seen it done it smokin it

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    And what is an xrl ? cannon rubber locking instead of cannon locking rubber?
     
    themadhippy, Jun 28, 2010
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  7. la toilette

    flatpopely Trade - AudioFlat

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    If only!

    X = GND
    L = Live
    R = Return

    most people use:-

    X = Pin 1
    L = Pin 2
    R = Pin 3

    IIRC BBC swap L and R (hot and cold)
     
    flatpopely, Jun 29, 2010
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  8. la toilette

    themadhippy seen it done it smokin it

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    The beeb aint the only ones to swap hot and cold (2+3) around,the americans also had a habit for doing it .However the term xlr has nothing to do with the wiring convention,general consensus is its a military stores code,X for cannon,L for locking/latching ad R for rubberised
     
    themadhippy, Jun 29, 2010
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  9. la toilette

    flatpopely Trade - AudioFlat

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    Thats news to me. Where does the rubberised bit come from?
     
    flatpopely, Jun 29, 2010
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