6 replies to this topic

[MiniSprite93]

For some reason, my speakers have suddenly started crackling, no matter what volume, but strangely enough, they crackle more at lower volumes, anyone know why this could be? Neither of the speakers have blown, as all of the cones are still intact. Cheers guys.

[Ruckus]

The cone being intact has got nothing to do with a speaker blowing or burning out I'm afraid.

When a speaker fails its either:

• The Surround separating from the top edge of the cone (rare unless high power has been pushed though it).
• The Spider separating from the bottom edge of the cone (rare unless high power has been pushed though it).
• The voice coil burning out... (most likely)

You can test if the voice coils have gone by gently pushing the cone of the speakers down a cm or so..
Make sure the system is off and push evenly around the cone at the same time (use both hands)

if you hear a scraping noise or the cone sticks at all, then I'm afraid its the voice coil.



If its not the speaker then its will have to be a short in the speaker wire, which will be odd for both cables to have generrated a short at the same time.

Or its the amp/head-unit its self failing...

Edited by Ruckus, 25 November 2011 - 03:28 PM.

[MiniSprite93]

The cone being intact has got nothing to do with a speaker blowing or burning out I'm afraid.

When a speaker fails its either:

• The Surround separating from the top edge of the cone (rare unless high power has been pushed though it).
• The Spider separating from the bottom edge of the cone (rare unless high power has been pushed though it).
• The voice coil burning out... (most likely)

You can test if the voice coils have gone by gently pushing the cone of the speakers down a cm or so..
Make sure the system is off and push evenly around the cone at the same time (use both hands)

if you hear a scraping noise or the cone sticks at all, then I'm afraid its the voice coil.



If its not the speaker then its will have to be a short in the speaker wire, which will be odd for both cables to have generrated a short at the same time.

Or its the amp/head-unit its self failing...

Ok, thanks a lot Ruckus! Will go and try the things you've just mentioned now, I am more inclined to believe that it's going to be a short in the wire, or the head unit, as both speakers started this at exactly the same time. Thanks for taking the time to post a diagram as well! Much appreciated

[Ruckus]

OK i hope it is just the wire but its going to be damn unlucky to get a short in both cables at the same time?!

Were as if you think about it both the speakers are being driven by the same single at the same time, so to go at the same time is not so unlikely.

And remember its not to much power that normally kills speakers is too little pushed to hard...

Meaning in layman's terms: Too little power (Watts) with too much Volume asked for = distortion.. Which is a speaker killer.

[MiniSprite93]

Ok, so I tried the things you suggested, and the speakers appear to be fine. The latest update now is that it only crackles occasionally, and when it does, the crackle can vary between being vaguely audiable to very loud. What is this madness! Haha

[Ruckus]

mmm sounds like it could be the headunit then. Check the cabling is all solid, if the ground is a bit loose then this can create noise in the system.

[MiniSprite93]

Ok will do! Thanks for the advice.