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Thread: IMF tls 80 problem

  1. #21
    Join Date: Dec 2013

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    Maybe younger eyes can make out the type better than mine.

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  2. #22
    Join Date: Aug 2009

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    Quote Originally Posted by 09mike69 View Post
    I'd like to find out why it won't power the tweet and super tweeter first.

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    Assuming connections between crossover and drivers are sound then it has to mean that some part(s) of the crossovers are shagged. You know the drivers are okay so what else can it be? There isn't anything else.
    Current Lash Up:

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  3. #23
    Join Date: Dec 2013

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    There is the unknown cap glued to the baffle. And the fact its the same on both speakers.
    I agree with the shagged cap approach but because they have been messed with I'm concerned what may have caused the problem.
    Why the inline cap on the baffle, spoke to falcon acoustics and they had not seen or heard of it on these speakers.
    And no caps on the speaker terminal or tone switch.


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  4. #24
    Join Date: Feb 2013

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    caps would i guess be put there either to protect tweeter or to limit its response(or both)
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  5. #25
    Join Date: Apr 2012

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    Quote Originally Posted by 09mike69 View Post
    There is the unknown cap glued to the baffle.
    Looks like a resistor to me.
    It is impossible for anything digital to sound analogue, because it isn't analogue!

  6. #26
    Join Date: Jun 2015

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    That screw is where the knob used to be so it's be removed by the modders. Also I don't think they are TLS80s from the label they are probably the earlier Transmission Line Loudspeaker I think they were called.

  7. #27
    Join Date: Dec 2013

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    Quote Originally Posted by Lawrence001 View Post
    That screw is where the knob used to be so it's be removed by the modders. Also I don't think they are TLS80s from the label they are probably the earlier Transmission Line Loudspeaker I think they were called.
    My thought too, removed the tone switch and put an inline resistor on the tweeter,
    Still can't figure out why the tweeters won't work in situ.
    Cheers
    Mike

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  8. #28
    Join Date: Dec 2013

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    Ok so I removed the resistor and both tweets are now producing sound.
    Sounded a tad low but I'll get a better idea when I reconnect the speaker units and have a listen.
    Thanks for all replies, and I'll post back when I've had chance to put them back together and had a listen.
    Cheers
    Mike.

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  9. #29
    Join Date: Jun 2015

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    What's the value of the resistor? It's normally about 1-2 ohm to reduce the treble level (in series). Much higher would explain the issue. Although why anyone would want to add it in the first place is a mystery.

  10. #30
    Join Date: Dec 2013

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    Quote Originally Posted by Lawrence001 View Post
    What's the value of the resistor? It's normally about 1-2 ohm to reduce the treble level (in series). Much higher would explain the issue. Although why anyone would want to add it in the first place is a mystery.
    I don't know I'd have to measure it, there's no value marked on it.
    I won't replace it.
    Hopefully get time today to get them up and running.

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