6 replies to this topic

[Matskies]

Hey guys,
just today the cone on my Sub started rattling, It doesn't do it at high volumes, normally on about 20-22 of a possible 35, The gain is probably set slightly above a quarter of the full amount.

It sounds like the cone is hitting something causing the rattle.

i tried manually pushing the cone in and i don't get any scraping sounds etc.

Any ideas?

cheers guys

[Equilibrium1990]

I have had this issue with a Clarion WG2510 and it turned out to be a very small breach in the dust cap/surround glue. I removed the dust cap and put some new glue on. Took about 30 minutes to fix and it's been bumping away in the bosses BF for 3 months now :-D

I also had an issue with a repaired Alpine SWR-1043D I repaired it my-self due to a loose surround. I did not center the voice coil correctly so now it makes a rattle every now and then at 3/4 volume. The second one I repaired is perfect tho :-) I will redo the repair one day when I get time.

There's also the possibility the sub is bottoming out tho I do not know how to repair that one.

Hope this helps, I'm sure some of the more experienced members will chime in, Their a good bunch

[DrBoom]

What type of subwoofer is it mate? without inspecting the subwoofer, its kinda hard to tell. You may have to take the sub out of the box and test it free air. Maybe the sub has a plastic magnet cover that tends to vibrate at certain frequencies. like my hifonics HF12.5 (I think) that has one of those.

Could be loose dust guard, or back plate, or woofer frame, hard to say!!

Find out by running it free air then pin-point the exact culprit and then take steps to rectify the issue. Bear in mind that speaker design has not changed much since the hey days but have found those plastic magnet casings do tend to vibrate but such is not the case with rubber / magnet covers.

[syd-monster]

to add to the above. could be tinsel lead slap.

[Matskies]

The Subs are JVC Arsenal,

Well, for now the noise has stopped, if it starts up again then, i'll tear the box out and inspect, i'll check for all the things you recommended

Weird how it started it after a few months, considering i never really let the subs clip for more than a few seconds.

Cheers blokes

Edited by Matskies, 31 May 2012 - 10:07 AM.

[2013FOCUS]

Is it only one, or both?
Do they share a common enclosure, or separate?

This will have a bearing on the answers above

Mark

Edited by Frankston Car Audio, 31 May 2012 - 10:30 AM.

[Matskies]

It's only one sub, and they share the same enclosure
i'm thinking it was just a bit of speaker wire which moved towards the cone, coz it's completely stopped now, and the sub still runs perfect.

They're wired parellel so i have a fair bit of wire in the box,

ever heard of anyone having problems like that, mate?

Cheers