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Buzzing Audiolab 8000M/8000C set up

Hi. I just bought the following on ebay, which were described as ''excellent''. 2nr Audiolab 8000M 1nr Audiolab 8000C.

When I connect up the monoblocks I get buzzing and crackling from the speakers. If I add the 8000C to the circuit it becomes more of a buzz, which is ''cleaner''. All of this is very noticeable and the units are unuseable. I also tried using my 8000A as a pre amp, and the problem is still there.

Any ideas as t what is wrong, who could fix it and what it may cost? I am in London.

thanks

Derek

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  • djm749 May 02, 2010

    Hi
    Thank you for your ideas. I have tested the equipment using a different mains supply. I have also changed all the supply leads and checked that all plugs are earthed. All of that was ok. Not sure what else to look at now.

    Thanks

  • djm749 May 02, 2010

    I also have an Audiolab 8000A. I tried using that as a power pre amp and still got the buzzing in the speakers. I then tried it as a power amp with the 8000C I bought, and got no output whatsoever, so it looks like all 3 components are not working.

    Any ideas as to costs/

  • djm749 May 02, 2010

    just re read all this and realised I should have mentioned that the amps don't give too much speaker buzz when they are powered up without sources connected. add in a tuner or a CD player and it then starts to generate a lot of buzzing through the speakers.

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Make sure ur mains supply and ur equipments are compatible. check all connections and most important make sure u have proper earthing.

Posted on May 02, 2010

  • John Muana
    John Muana May 02, 2010

    i am afraid either the power section or the power amp is burnt. it will not cost that much to repair. any qualified tech should be able to repair it.


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