Question about Audio Shelf Systems

2 Answers

No bass HELLO ALL, OUT OF ONE SPEAKER ALL I CAN HEAR IS WHAT SOUNDS LIKE TWEETER SOUNDS. I TRIED REPLACING THE WOOFER BUT NO CHANGE CAN YOU HELP ME FIGURE THIS OUT? ANY HELP WOULD BE GREAT! INFINITY sl-30 BOOKSHELF SPEAKERS

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  • hillybill Feb 19, 2008

    IF YOU MEAN THE RECEIVER AMP MAYBE BAD .I HAVE ANOTHER PAIR OF SPEAKERS THAT SOUNDS FINE HOOKED UP TO SAME.

  • hillybill Feb 19, 2008

    IS THERE A SIMPLE WAY TO TEST THE PASSIVE CROSSOVER?

  • hillybill Feb 23, 2008

    hello,.

    after running the wires directly to the woofer, it appears to be the crossover that is bad.

    i am curently shopping for a crossover, but have not replaced it yet.



    thanks to both of you for your patience and expertise!!



    m.howell

  • hillybill Feb 23, 2008





    hey, thanks for the info!

    i just a novice trying to narrow it down, and with your help and patience i will eventually put this speaker back in service.again, thank you guys very much!!

    m.howell

  • hillybill Feb 23, 2008

    hey, its me again i meant to ask you what is a cold solder ? and how can you idenify it

    thanks m.howell

  • hillybill Feb 24, 2008



    HELLO,

    I PUT THE NEW CROSSOVER ON AND THAT TOOK CARE OF THE

    PROBLEM. I JUST WANTED TO THANK EVERYBODY THAT TOOK THE PATIENCE TO HELP ME.YOU GUYS REALLY KNOW YOUR STUFF!! I WILL

    DEFINITLY USE YOUR SERVICE IN THE FUTURE IF I NEED TO.



    THANKS AGAIN!! HAVE A GOOD NIGHT!

    M.HOWELL
















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2 Answers

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  • Master
  • 6,966 Answers

Hi,

Since you have replaced the woofer, it is possible that the passive crossover network inside the speaker is the one in question.

Alternately, it is also possible that the signal source (amplifier) that might be the issue. Can you pls try wiring your speakers the other way around - left speaker goes to the right output of the amp and vice-versa for the right speaker. If the problem changes speaker, then it is the amplifier that should be attended to.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Feb 19, 2008

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  • Louie  Role
    Louie Role Feb 19, 2008

    Sorry ginko for doubling up. Guess you posted while I was composing my reply. Cheers.

  • Louie  Role
    Louie Role Feb 19, 2008

    Hi again,

    Yes there is. Wire the woofer direct to the speaker wire but not the tweeters (or the mid range if any). Pls try at relatively low volume level/settings during testing.

    Cheers.

  • Louie  Role
    Louie Role Feb 23, 2008

    Yo Ginko,

    You think it was fixed?

  • Louie  Role
    Louie Role Feb 23, 2008

    and hello again hillybill,

    It is very seldom that crossovers go bad. You might want to have a closer look. It is possible that the problem may be a case of loose connection or cold solder. Normally passive crossovers are a combo of inductors and capacitors. Often the capacitors are for the mid range and tweeters while the inductor or coil are for the woofers. There are even crossovers with no coils but simply capacitors just for the tweeters with the woofer directly connected to the speaker wires.

    In any case, glad that you have figured things out and appreciate the rating too.

  • Louie  Role
    Louie Role Feb 23, 2008

    hi,

    A solder joint is a connection used with lead and a soldering iron. Cold solder would then be when the said joint looses conductivity/connection. Normal/good solder would be shiny, bright and silvery in color; on the other hand a cold solder would be dry, dull, grayish in color.

    This link would provide you with images for reference.


  • Louie  Role
    Louie Role Feb 24, 2008

    Glad to be of assistance and appreciate the rating too.

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  • Audio Shelf ... Master
  • 19,396 Answers

If you hear a very high pitch hissing sound coming out from one channel then probably your amp final is gone, in that case you will need to work at component level to fix it

Posted on Feb 19, 2008

  • 1 more comment 
  • Ginko
    Ginko Feb 19, 2008

    If you change speakers and it is fine then is not the amp. In this case is the spekers, maybe a short.

  • Ginko
    Ginko Feb 19, 2008

    No prob ben

  • Ginko
    Ginko Feb 19, 2008

    did you fix it?

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direct FixYa link: http://www.fixya.com/users/technical114

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