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View Full Version : Voice-coil rubbing: possible fix?



jerv
11-18-2009, 12:01 PM
I have a 2204H. The unit works, but has developed a voice-coil rubbing. On normal music/levels this is not noticeable - but it is definitely there: easily detected on a 30 Hz test tone, and when moving the cone by hand.

Is it - by any means - possible to fix this (apart from a new (and expensive) recone job)?

Thanks, Espen

SMKSoundPro
11-18-2009, 12:37 PM
Maybe yes, maybe no.

If the voice coil is blistered excessive heating of the voice coil windings = No.

If there is some bit of magnetic little stuff in the gap that can gotten out by melting out the cone and "reconing" then = maybe yes.

if the glue joint is failing around the spider and can be reglued = yes.

If the surround is starting to tear loose from the "paper" cone and can be re-glued = maybe yes.

Using a 2204 12" driver for 30hz seems a bit low for me. Try the 40hz high pass filter button.

That has been my experience.
scotty.