8w7 lasted 2 weeks..

[Frijoles24 10+ year member]

after this while of thinking about this sub, and im just htinking that i t still may work.

but i think the motor and everythign is in working condition

its just that the excursion went passed the length of the coil and it poped out

and it ripped the spider.

any ideas feedback

 

[funkdoktor 10+ year member]

Thanks for the explanation. I honestly do appreciate someone taking the time to educate me on something I am either misinformed or just simply ignorant about so again, thank you. //content.invisioncic.com/y282845/emoticons/thumbsup.gif.3287b36ca96645a13a43aff531f37f02.gif

That was a good read and thanks to you for linking to it.

I guess we were! But gaining knowledge, regardless of the subject matter, is never a bad thing so there is a positive end to this.

I knew more than I knew when I woke up this morning so thus far it's been a good day! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

a rare time for caraudio.com............ //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[funkdoktor 10+ year member]

Most people underestimate the T3002.It's been known to average 180% over rated power

must be blowin' subs unsuspecting subs left and right......

 

[XxSuperAdamxX 10+ year member]

Sorry to hear that buddy =(

 

[wvufootball 10+ year member]

so the "hz" was at 160? any sub would sound like shit with the xover at 160

 

[XxSuperAdamxX 10+ year member]

Poor sub...=(

 

[Stem 10+ year member]

sorry for the noobiness but...

if a clipped signal does not ruin an sub, but just send it more power than it can dissipate... why wouldn't all noobs just crank up the gains without any consequence except for "its louder"?

im still trying to wrap my head around this lol.

 

[wvufootball 10+ year member]

uhh noobs do crank the gain because they use it as a volume knob. They crank it untill its loud enough for them.

basically if the woofer can dissappate the extra heat, then the woofer will be fine. If it can't, the woofer will be cooked. That all depends on the sub,enclosure, and amp.

 

[audioholic 5,000+ posts]

sorry for the noobiness but...
if a clipped signal does not ruin an sub, but just send it more power than it can dissipate... why wouldn't all noobs just crank up the gains without any consequence except for "its louder"?

im still trying to wrap my head around this lol.

Because most people buy an amplifier that's already capable of at-or-near power limits for the speaker(s), adding more power to the equation in the form of clipping the amp will likely send the speaker past its thermal limits. As was said above, if this noob wants to buy a 500 watt sub and a 25 watt amp, sure he can clip the amp all day long if he wants to.

 

[Immacomputer 10+ year member]

sorry for the noobiness but...
if a clipped signal does not ruin an sub, but just send it more power than it can dissipate... why wouldn't all noobs just crank up the gains without any consequence except for "its louder"?

im still trying to wrap my head around this lol.

When I'm driving my sub hard, the signal is clipped like a ***** but I'm not worried about it because my amp is underpowering the sub. Right now, my sub can handle about 750rms or so without a problem but I have it on an amp that does about 300wrms. Clipping that amp isn't going to hurt my sub at all and it hasn't. But, if I powered it by an amp closer to the 750rms, then clipping that amp could very well cause problems and blow the sub.

Power is power and it is over powering that blows speakers. When amp companies rate their amps, they rate them for a certain power at a certain THD. When you start going over that THD limit where they rate the amp, you start to gain more power and as the signal clips, even more power is generated. Just because an amp is rated at 1000rms does not mean it can't do 1300rms or more.

 

[lostdaytomorrow 10+ year member]

I think I remember learning that the square wave messed up the coils because they are at rest during the peaks and not just going in a wave pattern back and forth, therefore heating the motor up more than normal.

 

[TeoTorriatte 10+ year member]

I think I remember learning that the square wave messed up the coils because they are at rest during the peaks and not just going in a wave pattern back and forth, therefore heating the motor up more than normal.

This does contribute to the overall demise of the driver if there is enough current flowing through the voice coil. But with lower power, it doesn't matter how clipped the waveform is, as long as the temp. of the voice coil does not reach its thermal limit, the driver will not fail.

 

[lostdaytomorrow 10+ year member]

This does contribute to the overall demise of the driver if there is enough current flowing through the voice coil. But with lower power, it doesn't matter how clipped the waveform is, as long as the temp. of the voice coil does not reach its thermal limit, the driver will not fail.

Roger that.