Sub Problem

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=55049
Printed Date: May 13, 2025 at 11:27 AM

Topic: Sub Problem

Posted By: Alpine Guy
Subject: Sub Problem
Date Posted: May 03, 2005 at 1:51 PM

My new Resonant Engineering SE 15" started smelling like it was burning up the other day while giveing a demo, it wasn't being pushed past its capabilitys, nor was it distorting, which is odd. But now it dosn't play as loud, i would say a good 10db loss in sound. I checked the Voice coil for any discolouration or burn marks and it looks good a new, but has that oh so beautiful burnt electronics smell. ( still think they should make a cologne like that).

I just can't figure out what could have gone wrong with the sub thats not visable?

Anyone know how much a re-cone costs? i can't get ahold of RE right now, there moveing.

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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

Replies:

Posted By: DYohn
Date Posted: May 03, 2005 at 2:10 PM

Smells like a burnt voice coil... ? If it was not pushung any limits, probable manufacturing defect.

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Posted By: kfr01
Date Posted: May 03, 2005 at 2:21 PM

Well.. a large ported box like that, power handling is surely dramatically decreased. The problem is that with relatively clean woofers like the RE's it may have been difficult to tell if you were getting close to mechanical limits before it was too late. A continued bout of loud signals below the tuning frequency in that box just may have toasted things. RE lists the power handling for those drivers at 600w. In that enclosure I wouldn't be surprised if that number was more like 300w or lower. Driver starts moving in a non-linear fashion.. cooling flies out the window. "does something smell funny?"

Did you have a subsonic filter turned on?

That said, it could just as easily be a manufacturing defect.

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New Project: 2003 Pathfinder

Posted By: customsuburb
Date Posted: May 03, 2005 at 4:02 PM

How much power from your VR200d were you pushing it with though? Those amps are monsters.

posted_image

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Posted By: Alpine Guy
Date Posted: May 03, 2005 at 4:59 PM

Yeah i had my sub sonic on around 30hz which was my box tuneing also, also had it wired to 8 ohm recieveing around 500 wrms. And the gain set below what it should me matched at, i was definately takeing the cautious approach, im guessing it was a manufactureing defect. It was as clean as a 10" while it lasted....

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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.