Sub bottoming out???

[microhaxo 10+ year member]

yes, i can hear it directly in front of the sub and off to the sides. when i made that video about 3 seconds into the bass i heard the clicking and i was standing about 4 ft away.

cant hear anything but bass in car of course.

 

[thevic24 5,000+ posts]

could it be the amp clipping mabie?

 

[microhaxo 10+ year member]

I was unaware that a clipped signal made noises like clicking.

It is sending a signal within its RMS range, dont think its clipped IF at all.

 

[pr-festiva 10+ year member]

i dont hear any bottoming out in the vid. could be tinsle lead slap i would think the horrific noise that is bottoming would be pretty clear even on a crappy vid.

 

[TnT_Sounds 10+ year member]

O-scope it is the only way to truly know if its a clipped signal. Pull the sub out and play a 20hz free air tone and see what kind of outcome you get. Maybe the sub is just going on its last limbs before its toast

 

[dvrmstrng 5,000+ posts]

how well is your box made...one time i made a box and my glue didnt hold really well and i did not screw it, the two panels would click together and make a similar noise until i sealed it up

 

[Rideredder 10+ year member]

Have you checked the coils with a DMM?

I had a coil unwind on me once and it made the same noise.

 

[microhaxo 10+ year member]

I dont thing its tinsel slap, the tinsels are woven into the spider..

I havent checked the resistance of the coils yet, i will do that today.

I have never smelled any type of glue burning or any odor at all when playing this sub.

A similar thing happened to my friends kickers and it was tinsel lead and it eventually led to the tinsel breaking.

But again my tinsels are woven in so i dont see how this could happen.

The noise is noticeable when i have trunk open, it just cant be heard on the camera.

Sounds like i took my knuckle and tapped the cone, but it doesnt do this on all tones/ hits through the song it clicks ONLY on specific parts. It is predictable.

Edit:

I doubt the box is coming apart. If you look at the video you will see i have enough screws in it to build a shed and glue on every edge, i could pretty much toss this out of my car at 50mph and still have it be a box.

 

[microhaxo 10+ year member]

THIS is beyond weird..

Ok so i checked to see if the line driver was at fault and it wasnt.

So i lower the gain down to 34.5v around 1200w rms.

I play song that has clicking and it has the EXACT same clicking sound and it doesnt even sound less.

I volt meter the wires when song is playing at its only hitting a MAX of 500w RMS!

WTF!!!!!

doesnt make any sort of clicking at lower volumes, but as soon as i hit 20 out of my listening volume of 22 it clicks..

So i say. WTF is going on?

I lowered the power substantially and it still clicks. Cone makes no rubbing noises and its DEFINITELY not being sent a clipped signal.

I dont know what else to do?!

EDIT:::

WOW.. Just took it out of the box and its TINSEL SLAP..

There are some marks on the cone from it. Here are some pictures..

So the new question is:

how can i prevent/ stop it..

It is slapping even at rms rating and a little under.

???

 

[microhaxo 10+ year member]

Should i bend the metal leads that hold the tinsel a tiny bit at the top to prevent this?

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And now its FIXED ! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[pr-festiva 10+ year member]

looks like you might have been playing below tuning causing just a little to much rearward stroke but im no expert.

 

[Louisiana_CRX 5,000+ posts]

subsonic filter FTW

 

[microhaxo 10+ year member]

my subsonic filter is set at ~ 30 hz..

the max on the level is 35hz and mine is about 80% there..

Also I dont think that song i was playing was close to 30hz at ALL..

T.I. Ready for whatever..

id say its above 40hz the whole song.

 

[Bass Addict 10+ year member]

at least you fixed it //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[pr-festiva 10+ year member]

ive seen some songs that contain subsonics that most people wouldnt know was there.either way its fixed now