Blown Bass driver. What happens to the speaker to stop it from working? - diyAudio
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Old 23rd February 2017, 06:10 PM   #1
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Default Blown Bass driver. What happens to the speaker to stop it from working?

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Old 23rd February 2017, 06:40 PM   #2
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The bass unit works a little when I press the cone down into the magnet whilst playing music through it. Why does the sound cease when my hand is relieving the pressure pressed down on the cone.
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Old 23rd February 2017, 07:04 PM   #3
VaNarn is offline VaNarn  Australia
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There are several explanations that could apply to your brief description. The flexible tinsel leads have a broken section caused through fatigue, or, there is a break in the lead out wires of the voice coil. The latter fault can be due to a crease in the cone /former neck and even the voice coil to cone neck join may have failed. Other faults can be caused by overloads that have resulted in mechanical damage to the coil or overheating that has created heat blisters.
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Old 24th February 2017, 05:36 AM   #4
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Quote:
Originally Posted by VaNarn View Post
There are several explanations that could apply to your brief description. The flexible tinsel leads have a broken section caused through fatigue, or, there is a break in the lead out wires of the voice coil. The latter fault can be due to a crease in the cone /former neck and even the voice coil to cone neck join may have failed. Other faults can be caused by overloads that have resulted in mechanical damage to the coil or overheating that has created heat blisters.
Many thanks for your reply. It was one of those evening when I played the music pretty loud. The voice cone was moving beyond it's normal playing levels. I will take the driver from the enclosure & see if I can spot what's happened.
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Old 24th February 2017, 06:17 AM   #5
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What's good for dissolving the glue that suspends the yellow spider to the basket?
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Old 24th February 2017, 07:23 PM   #6
VaNarn is offline VaNarn  Australia
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For removal of a rubber contact adhesive, acetone is the recommended solvent. Turpentine is an alternative and it will require repeated doses applied to the bonded area. Be careful if you need to remove the outer surround, as volatile solutions can swell foam plastic and synthetic rubber.
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Old 27th February 2017, 07:07 AM   #7
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Great, thanks for the reply.
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