what's the smell?

I can't figure out what it is. I pinpointed it to the port. And I can almost bet its the voice coil. But why?

Smells like something is getting hot, really hot. But I dunno why it smells when it does...

My sub is BRAND NEW, and I would say that I have'nt done the "break-in". I can only think, either I really 'am screwing soemthing up, or not aware of something, or it just cause its new...

If you need more information about my setup to help me solve this problem, ask... I figure just by stating the problem its going to be obvious for someone who is really experienced in the audio...

The fact that your sub is new definitely does not mean that it cant blow, if anything (although its disputable) it would mean that it will blow easier.  I would assume, although obviously not having smelled it myself, that its a blown voice coil.  Blow voice coils are a pretty rank scent and definitely would seem like something was very very hot.  There are multiple reasons it could be happening, overdriving a new sub, and quite obviously setting the gains improperly.  If there is some way of getting a new one under warranty I definitely would, as I can almost guaruntee you fried the voice coil and trashed the sub.  Once you get a new one, either look into having it professionally installed or read very thoroughly over the gain setting and sub installation tutorials on this forum.  Good Luck

If the sub plays fine, and its new indicates it may be burning so residual glue of of the voice coil when it warms up. Voice coils get hot when in use ie the smell. This does not mean your sub is blown or blowing. Make sure you have the gains set properly and you should be ok, it's worth the money to have a pro set the gains to make sure the are correct.

It could be that the VC is actually cooking if the amp is clipping or is overpowered for the sub.  Or it could be the wonderful smell of smoked polyfill if you used it and it is laying against the magnet structure.  Or it could be nothing.  If you're certain your amp gain is set properly and you are certain any polyfill is away from the back of the speaker, run it for a while and see if the smell goes away on its own.

Or just stop sticking your nose into your port (it's also a good practise to keep your nose out of other people's ports too.) 

Hahaha, nice one dyohn!

My voice coil is not blown for CERTAIN! Or else my sub would'nt be playing... And there is no smoke, I figured it would just be the glue, but I hear so many answers its hard to know...

The thunder 7500's are a peak 400rms. My amp is also 400rms at 2ohms. My subs voice coils are wired in parallel to 2 ohms. So its taking all 400 watts its capable of.

I know thats a perfect match, 1 amp per sub. Maybe it would help if you guys knew that 1 3401 amp is 50 amps rated. My alt. is 65. But the thing is, I play my sub hard, but not close to distortion, and my lights will barely dim. So I figure, I'm okay with 1 right now. And that my sound system is powered efficiently until I want both subs to run.

So then its either, I did'nt tune my amp and deck right, or its because of not doing the break-in.

But off the top of my head, I remember that my gain was at 50%, bass boost at 6dB, x-over around 45-50Hz., and I have the input sensitivity on so it pounds. But I think its x1 cause when I push it in, so it says x10, it sounds quiet...

My deck, equalizer is set at vocal, so I can hear my 6x9's that are powered by the deck. The LPF is at 50 or 80Hz +0.

If this helps any....

What? I dunno what I was talking about then, lol. Becuase if you look for yourself, you will see that the thunder 7500's are indeed 400 rms when the sub is wired in parallel so its 2ohm. The amp. is also 400 rms when its at a 2ohm load. Its a class-d mono block.

So tell me, if I fried my voice coil would it still work? Becuase if one fried, I assume the other would work. Although, when I fry one it only leaves me with one. Therefore, I would also assume it would be the equivalent to wiring one thunder 4500 to a 3401, and then would blow it. Since I just got back from Car Toys, it seems like its working to me...

Maybe I over exaggerated what I meant by the smell. I just sure as hell don't want to smell it. And its only by reasoning that if it smells bad, it is bad! Haha! I know that the only true way to set the gain is through a dmm. I don't have any money. eh? And still, it would cost me around $22 for 30min in the shop for a tune.

Wow, well, is it going to be possible for me to use the bass boost once its broke-in? The guy at Car Toys, not my buddy, tuned it for me by ear... We talked all about the whole thing and he said it was fine. Just have about 4 more hours to get the chance to POUND IT! :D

Now, I just have to wire up my amp rack, to the relay of mine, so I can get my fans to run. The heat and sun in my truck, make the amp hot. SO I have to get it going or no go!

wow! Well, I like to stick to what MTX says about their subs. You know, I don't want to test them!

One 7500 is crazy as hell in my truck. I dunno what I'm going to do besides really doodie myself when the other one is runnin'!

hex0rz wrote:

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Wow, well, is it going to be possible for me to use the bass boost once its broke-in? The guy at Car Toys, not my buddy, tuned it for me by ear... We talked all about the whole thing and he said it was fine. Just have about 4 more hours to get the chance to POUND IT! :D

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