Rattling subwoofer???
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From: Charlotte/Raleigh, NC
Rattling subwoofer??? I have had my subs for a little over a year and just rewired them cause I figured out the person who did it the first time did it wrong. So they are wired in series/paralell at 4ohms and they sounded awsome, but then one of them started rattling. At first I thought it was my hatch btu I opened it up and it was the speaker. It almost sounds like there is something loose thats jumping around in there but I don't know. Any ideas?
by the way, my setup is:
2 Audiobahn 10" dual voice coil 300W RMS
Power Acoustik 520W amp
by the way, my setup is:
2 Audiobahn 10" dual voice coil 300W RMS
Power Acoustik 520W amp
Thread Starter
TECH Regular
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Joined: Nov 2004
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From: Charlotte/Raleigh, NC
how do I check the impedence on each coil, and what is the dust cap. I have minimal speaker knowledge so you might have to take this slow, and thanks by the way
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Joined: Feb 2002
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From: Sacramento, CA
NO man, 
The dust cap is the small circlular piece in the very middle of the speaker cone. It is usually a seperate piece than the main cone and is glued in. Too much heat and bad glue can cause them to come loose. Old school Kicker subs used to do this all the time. LOL Just run your fingernail along it's edges and see if it lifts at all.
To check the voice coils you need a multimeter. Set it on ohms and simply put the poistive lead on the speaker positive and the negative on the negative speaker lead. Do this for each voice coil. The impedence should be the same on all of them. The #s wont be exactly what the speaker is rated at for instance. If your speaker is rated at 4ohm per voice coil then you will probabbly see a reading of 3.87ohms on each coil. This is p[erfectly normal.
Another idea is to make sure that your speaker wire is not curled up and touching the bottom of the cone inside the box. If it is or any other material is lightly touching the cone then that will cause a rattle also.
The dust cap is the small circlular piece in the very middle of the speaker cone. It is usually a seperate piece than the main cone and is glued in. Too much heat and bad glue can cause them to come loose. Old school Kicker subs used to do this all the time. LOL Just run your fingernail along it's edges and see if it lifts at all.
To check the voice coils you need a multimeter. Set it on ohms and simply put the poistive lead on the speaker positive and the negative on the negative speaker lead. Do this for each voice coil. The impedence should be the same on all of them. The #s wont be exactly what the speaker is rated at for instance. If your speaker is rated at 4ohm per voice coil then you will probabbly see a reading of 3.87ohms on each coil. This is p[erfectly normal.
Another idea is to make sure that your speaker wire is not curled up and touching the bottom of the cone inside the box. If it is or any other material is lightly touching the cone then that will cause a rattle also.
