Edifier x600 subwoofer very weak sound

Discussion in 'Troubleshooting and Repair' started by aceh20012002, Feb 13, 2018.

  1. aceh20012002

    aceh20012002

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    Hello. I am new here. I would like to ask help.my edifier x600/subwoofer speaker sound is very weak. The left and right speaker out are both running ok. What shall i do? What part should i look for troubleshooting?
    Thanks for any help anyone can extend.
     
    aceh20012002, Feb 13, 2018
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  2. aceh20012002

    WHONOES

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    Could be the speakers are not in phase.
     
    WHONOES, Feb 13, 2018
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  3. aceh20012002

    aceh20012002

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    How's that? Wiuld you kindly expound? Been using this for 2 years already. Suddenly, sound's weakened.
     
    aceh20012002, Feb 14, 2018
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  4. aceh20012002

    WHONOES

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    Generally if 2 bass drivers are wired in anti-phase the lower frequencies will sound very weak. The anti-phase aspect means that as one driver cone is going out the other is going in. This means that the pressure wave produced by the motion of the cones cancel each other out.
    Has the subwoofer been rewired or the feed to the speaker rewired at any time. If not then maybe there is an issue with the drive amp. It could have failed or may have reduced output or the lower frequencies could be constricted. The constriction could be caused by an input capacitor partial failure causing its value to decrease and limit the drive at the bottom end. I presume there is a filter in the system for driving the subwoofer amplifier, if so this could be at fault.
    Try disconnecting the subwoofer from your system and see if this gives any improvement. If it does and the sub is known to be working (have a look at the cone to see if it is vibrating) Then the sub is probably out of phase with the others.
     
    WHONOES, Feb 14, 2018
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