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My Marantz 2270 gives off a crackling sound through my Infinity sm-115 speakers anytime there is a lot of bass in a song. What do I need to do to fix this problem. I'm almost positive it is the reciever that is causing it. -Korey

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  • Tom Sep 29, 2013

    It's time for a "recap", to replace those old dried up electrolytic capacitors most likely. You can buy a kit with all the caps and replace them yourself if you know how to desolder and remove the old ones and solder in the new ones. If you have a geek friend who can solder then they can help you.



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It sounds like one or more of the channels is letting some DC current through or that the front end is breaking down. In either case, the parts required to fix it are generically available and cheap. Figure on $10-$20 in parts at any shop that deals with audio components. One thing you can do to help narrow this down is to see whether the behavior changes with heat. Do you get the same results upon startup? Does the problem get worse as the unit works (gets warm)?


Posted on Feb 23, 2009

  • lisettlor576 Oct 11, 2010

    I have the same problem but only from the right speaker. What parts are you referring to in order to fix the problem?



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Yea, now its time to replace it! the magnetic effect is weaken which makes the very bass low frequency sound to be distorted! You should re engergise the magnet of the subwoofer or should buy the new!

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