Question about Speakers & Subwoofers

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Subwoofer noise Sub suddenly makes loud buzzing sound and air blows through hole in bottom of sub when stereo/home theater system is off. Sub works fine when stereo/home theater system is on.I have tried turning sub off and back on, **ise comes back eventually. I have tried uplugging power supply at sub and receiver to reset, ** luck!

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  • Anonymous Mar 22, 2014

    What is the sequence for removing the screws on the back of the DPS10? I have a loud buzz unless downward pressure is applied to the connection of the RCA cable. I think it is a grounding issue with the connectino inside the sub. I removed all of the wood screws from around the back panel and 4 smaller screws but the panel wont come off.

  • Anonymous Mar 30, 2014

    Sub intermittently makes a clicking kind of noise. Tried unplugging for a day and came back after 5 min of being plugged back in. Does it even in standby.

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You didn't say is your sub active or passive.If its active first check signal cables from theater system,power line of the sub, it has to be the same phase as the system.If its passive take a voltmeter disconnect the sub from the system and measure for DC voltage on the SUB output on the system when its OFF.If DC voltage is present your amp is damaged.It can also be that the preamp circuit for the sub doesn't mute the input when unit is on stand by and you hear frequency of your power supply (50-60Hz) on the sub

Posted on Mar 10, 2008

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If the cap. says 16v 4700pF on it, for example, a 20v 5300pF or a 16v 6200mF cap. will work for this application.

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