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Speaker
I have a subwoofer in which there is a strange noise with the speaker
as if the voice coil or the cone of the speaker is touching somewhere so wat to do to prevent the noise . . . |
Speaker
wrote in message
ups.com... I have a subwoofer in which there is a strange noise with the speaker as if the voice coil or the cone of the speaker is touching somewhere so wat to do to prevent the noise . . . Check whether the gluing of the cone periphery or the skirt has failed. If they are sound At low power level try pushing the cone in a radial sense in diferent clock positions and also the same with the skirt/spider. -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
Speaker
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Speaker
On Wed, 19 Sep 2007 10:48:36 -0000, "
wrote: I have a subwoofer in which there is a strange noise with the speaker as if the voice coil or the cone of the speaker is touching somewhere so wat to do to prevent the noise . . . Depending upon the quality of your power amplifier and/or the level at which you have been driving it, your woofer voice coil may have been overheated and damaged as a result. Only you will know whether this is the case or not. Use the visual inspection and finger press technique suggested by NC to ascertain any obvious problem, but my money is on the voice coil being damaged. In this case the only solution is to replace the cone/voice coil - provided that one is available for your speaker. Usually, most respectable brand name speakers will have spares available. |
Speaker
In article . com,
wrote: I have a subwoofer in which there is a strange noise with the speaker as if the voice coil or the cone of the speaker is touching somewhere so wat to do to prevent the noise . . . It's likely been overdriven and the voice coil has distorted. Turning the driver upside down sometimes works. To help prevent this happening again a cheap power limiter can be made by wiring car bulbs (12 volt) of about the same wattage in series with the speaker. Parallel bulbs if needed to get the correct wattage starting with a 55 watt headlamp bulb. These have a very low resistance when cold so won't effect the sound much - but drive the unit too hard and they light up reducing the power. Not Hi-Fi exactly but a good trick to protect expensive speakers from that over enthusiastic moment. Ideal for teenage parties. ;-) -- *Why doesn't glue stick to the inside of the bottle? Dave Plowman London SW To e-mail, change noise into sound. |
Speaker
It is possible that the speaker cone or the rubber surround degraded with
age, or it was over driven and the voice coil became warped and it is rubbing against the magnet. A common cause of speaker damage is from being over driven. If the amplifier is under powered to handle the speaker or the loudness demanded, the clipping effect can damage the coils in speakers. The fix is to have the speaker re-built, or to replace it. -- JANA _____ wrote in message ups.com... I have a subwoofer in which there is a strange noise with the speaker as if the voice coil or the cone of the speaker is touching somewhere so wat to do to prevent the noise . . . |
Speaker
It is possible that the speaker cone or the rubber surround degraded with
age, or it was over driven and the voice coil became warped and it is rubbing against the magnet. A common cause of speaker damage is from being over driven. If the amplifier is under powered to handle the speaker or too much loudness demanded, the clipping effect can damage the coils in speakers. This is because the clipping causes some DC signal to reach the speaker. The fix is to have the speaker re-built, or to replace it. -- JANA _____ wrote in message ups.com... I have a subwoofer in which there is a strange noise with the speaker as if the voice coil or the cone of the speaker is touching somewhere so wat to do to prevent the noise . . . |
Speaker
JANA wrote:
A common cause of speaker damage is from being over driven. If the amplifier is under powered to handle the speaker or the loudness demanded, the clipping effect can damage the coils in speakers. Uhho... flame suits on everybody! |
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