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  1. #1

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    Default "Blown" Rt2000i - how to diagnose and what to replace?

    I ran my old RT2000i's from a Sherbourn 7-350 power amp (with A9's on 2 other channels). Even with the volume relatively low, and even though the RT2000i's are rated for 300WPC, I heard a slight buzz after about 3 mins, and both RT2000i's went silent.

    The drivers themselves look fine. What do I need to replace in the speakers?

  2. #2
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    Hi Kurt300,
    You say both RT2000i went silent. You mean neither speaker makes any sound at all? Probably the first thing to do is to verify that you have a working amplifier channel, then connect each of the speakers independently to this working amp. If there is some sound removed the speaker's grille cover and use a medium sized pillow to cover up the midrange driver and see if the tweeter is working. If it is then shift the pillow and cover up the tweeter, letting you hear the mid range driver.
    Regards, Ken

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    Quote Originally Posted by Kenneth Swauger View Post
    Hi Kurt300,
    You say both RT2000i went silent. You mean neither speaker makes any sound at all? Probably the first thing to do is to verify that you have a working amplifier channel, then connect each of the speakers independently to this working amp. If there is some sound removed the speaker's grille cover and use a medium sized pillow to cover up the midrange driver and see if the tweeter is working. If it is then shift the pillow and cover up the tweeter, letting you hear the mid range driver.
    Regards, Ken
    Great ideas, Ken - thank you. I didn't even suspect the amp channel as it is new. I'm taking delivery of new LSiMs this week, so will wait for that to test the amp channel on moved LSi-25's (which I know can take this much power). Also will hook the RT2000i's to an older receiver and test them as you describe if it's not the amp channel.

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    Good idea, Kurt, let us know what you find.

  5. #5

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    Sounds like the amp if it was the speakers they would not work from the start. It sounds like the amp might be overheating.

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