Question about SpeakerCraft MZC-66 Amplifier

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Buzzing in speakers on Carlsbro Marlin 8400 Power Amp

How do i get the buzz out?

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  • lazarus84 Jan 25, 2009

    I have the same problem. Tried all of the above. I've heard from someone that it might be a issue with a capacitor inside..?

  • Scott Frye
    Scott Frye May 11, 2010

    Hi...

    Disconnect all the inputs to the amp and power up.
    KEEP the speakers connected.
    Do you still get buzz?
    Are you around fluorescent lights? and, is the a GROUND prong on the AC cord?
    Thanks


  • mohamed eltoni
    mohamed eltoni May 11, 2010

    check your speakers cabels in good condition no short circuits of wires with any chassis of the amp-no contact between each other-shut down all electric equipment around you one by one and check.

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Weirdly, I disc overed that the buzz on my 8400 was due to the cheap power lead I bought for the mic mixer. I bought the more expensive( but tailor made) lead and the buzz disappeared .

Posted on May 04, 2011

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I repair these.

calgary.kijiji.ca/c-buy-and-sell-electronics-Speaker-Craft-MZC-and-BB-Series-Amplifiers-Repair-Service-W0QQAdIdZ229607818

Posted on Sep 26, 2010

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Hi,

If your volume is down and there's a hum, then it could be that your capacitors in the power supply are blown. Also there could be a problem with the bridge rectifier, possible that there's 1 or more diode's defect. Any technician can reapir that.

Hope it helps,
Gerard

Posted on Jan 31, 2009

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