audioque noise?

[Notloud00 10+ year member]

//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif my friends sub all of a sudden started making this mechanical noise. its like it is lightly bottoming out or something but it isnt close to full x max and doesnt do it on lower notes just like 30-48hz or so. we free aired it and it still does it. the sub has never been over warm and has seen around 500rms. it has had about 3 or more hours of play on it. he said it did it yest but failed to mention it to me. the coils are also a perfect 4 ohms. also the coils are a perfect copper color and their is no visual damage anywhere on the sub. is this just break in noise or is something f'd? its an sd 2.5 15

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[jbizzle 5,000+ posts]

Did you just start beating on them right out the box? They require a break in period.

 

[TC2k15x2 10+ year member]

//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif my friends sub all of a sudden started making this mechanical noise. its like it is lightly bottoming out or something but it isnt close to full x max and doesnt do it on lower notes just like 30-48hz or so. we free aired it and it still does it. the sub has never been over warm and has seen around 500rms. it has had about 3 or more hours of play on it. he said it did it yest but failed to mention it to me. the coils are also a perfect 4 ohms. also the coils are a perfect copper color and their is no visual damage anywhere on the sub. is this just break in noise or is something f'd?

Coils may be out of line?

 

[Notloud00 10+ year member]

Did you just start beating on them right out the box? They require a break in period.

no. i have been playing it lightly. sub barely moves. no the coils dont scrape. it is a tapping not a scraping.

 

[da box king 10+ year member]

id so they were not broke in properly...you''ll just have to live with the noise. should be ok still tho

 

[jbizzle 5,000+ posts]

What box do you have them in..?

 

[Notloud00 10+ year member]

IT is in 3.85 cubes at 40 hz. fully braced box 1 8.5" sono tube. if we did break it in wrong{i dont see how that could make this noise} then thats fine. the sub plays fine it just makes that noise. i have heard of other peoples doing this to. maybe it will go away once the suspension loosens up fully.

 

[da box king 10+ year member]

btw jbizzle I might be sellin my hdc3's if I can come up with another $500 for nightshades, I'll let ya know

 

[jbizzle 5,000+ posts]

Is it only on low volumes?

box king: msg me a price on what you have in mind.

 

[Notloud00 10+ year member]

actually its only at high volumes. on certain songs,notes

maybe we should keep it below that volume until they are fully broken in?

 

[jbizzle 5,000+ posts]

Low notes or high notes?

You should keep the volume down...

What series woofer do you have? i'm assuming SDC2.5 ?

 

[Notloud00 10+ year member]

Low notes or high notes?
You should keep the volume down...

What series woofer do you have? i'm assuming SDC2.5 ?

more on the lows. Yes it is a sdc2.5 15. i guess ill tell him to go easier on it for about 2 weeks or so. then i will see if the problem persists.

 

[jbizzle 5,000+ posts]

You shouldn't have been playing them low notes in the first place! The point is not to get the woofer moving at the lower excursions..

Break it in for a bit more on medium volumes, if it doesn't go away, live with it or recone it..

 

[Notloud00 10+ year member]

ok if it doesnt go away i guess we will get it reconed. how much is that if we get aq to do it?

 

[Notloud00 10+ year member]

anybody know he price of an sd 2.5 recone?