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Is this subwoofer damaged or normal noise (video)

post #1 of 8
Thread Starter 
Please see

https://www.dropbox.com/s/6g4khsv0679e9f1/2013-04-02%2020.53.19.mp4

Seller said it was demo unit, but this clicking even at low volume is worrying.
post #2 of 8
dealer needs to stop selling damaged drivers
post #3 of 8
If it wasn't damaged before you did that it may be now. If you're going to run a driver outside of an enclosure you have to be very careful not to drive it beyond the cone excursion limits. You may have done just that.
post #4 of 8
given the inconsistent noise pattern, it's probably the voicecoil broken up down inside the motor structure. Possibly the former came unglued from the cone too.
post #5 of 8
Quote:
Originally Posted by stormwind13 View Post

given the inconsistent noise pattern, it's probably the voicecoil broken up down inside the motor structure. Possibly the former came unglued from the cone too.
Tinsel leads slapping against the cone can do that too. Impossible to say what it is from a video.
post #6 of 8
What signal is that pink noise?
Sounds like the voicecoil is rubbing on the T plate, expansion from over heating, that is a very common death-sound for a dying subwoofer to make.

Eventually the coil will fail, or just completely annoy you to no end; the only cure is a complete recone or brandnew purchase.

I vote: Throw it in the lion pit. http://www.avsforum.com/t/1465866/destruction-vid-of-my-dayton-18 biggrin.gif
post #7 of 8
I had a similar sounding sub and after tearing it down, I learned it was from the coil wires unwinding. Luckily, I was at Fix My Speaker dot com's shop and I had a freshly reconed sub to take home.

I also read your plans - http://www.avsforum.com/t/1464657/unique-compact-home-subwoofer-in-works

I also found the parameters of your sub - http://rivalme.weebly.com/subs.html
post #8 of 8
Thread Starter 
Yea i don't think its the coil, its the spyders, I think they just making a slight ticking noise because of movement and in the video sounds larger than it is. You won't hear it once in the box.

Next step, install in the box with the passive radiator and see what its capable of. At 1250RMS, this sub does not reach peak excursion in free air, its a VERY stiff sub, that 2000RMS is no joke.
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