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-   -   JL shipped me a turd in a box labelled W3 for $159 (http://www.the370z.com/audio-video/55339-jl-shipped-me-turd-box-labelled-w3-159-a.html)

Vertigo 05-30-2012 05:52 PM

Quote:

Originally Posted by Wicked CAS (Post 1745273)
Did you call sonic yet to see what they will offer you for warranty?
See what they say... if not send me the serial number of the subwoofer.



Sounds good man. I will call them tonight.
Where is the serial number for the sub? - is it located on the sub itself?

vividracing 05-30-2012 07:06 PM

Quote:

Originally Posted by Vertigo (Post 1743199)
^ shouldn't it be 550rms per sub?
Yeah, and my gain is actualy set quite low, as well as my volume level. I doubt the subs are gettin anywhere near that on a regular basis.

The gain has nothing to do with how much power the woofer sees. The gain is not a bass boost knob, or a volume knob, either.

Vertigo 05-30-2012 07:21 PM

The volume level was low when the sub stopped working. That's why I'm so much in disbelief.
The bass eq on my radio was all the way down and the volume was on 10 or 11. By comparison, when my volume was on let's say, 6, I could barely hear the subs.

Idk, based on the volume I was playing it, it just seems tough to believe that the subs were being overpowered.

RonRizz 06-09-2012 02:37 PM

Wait a minute......too little power damages speakers???:icon14:

vjarnot 06-09-2012 03:23 PM

Quote:

Originally Posted by RonRizz (Post 1763064)
Wait a minute......too little power damages speakers???:icon14:

Speakers fail in two ways:

You turn the volume to a particular level, which determines the load that the speaker places on the amp, let's say X watts.

Now then: your amp either can, or can not, supply X watts:

a) your amp can supply X watts: the speaker plays at the selected volume. If playing at this volume causes the speaker to exceed its thermal or physical capacities (i.e., the amount of heat it can dissipate, or the distance the cone can extend), then the output sound is distorted and the speaker ultimately fails.

b) your amp can not supply X watts: the amplifier attempts to supply the amount of power that the speaker is drawing, but can not. This causes clipping, as the electrical waveform from amp to speaker has its peaks and troughs squared off. The output sound is compressed and the speaker ultimately fails.

The key bit that many people don't get is that the speaker is the component that determines how much output power (i.e., wattage) is drawn from the amp.

MattP725 06-09-2012 06:27 PM

Seek refund from vendor or dispute charge at visa/paypal... those would be my first actions.

RonRizz 06-09-2012 07:37 PM

Quote:

Originally Posted by vjarnot (Post 1763136)
Speakers fail in two ways:

You turn the volume to a particular level, which determines the load that the speaker places on the amp, let's say X watts.

Now then: your amp either can, or can not, supply X watts:

a) your amp can supply X watts: the speaker plays at the selected volume. If playing at this volume causes the speaker to exceed its thermal or physical capacities (i.e., the amount of heat it can dissipate, or the distance the cone can extend), then the output sound is distorted and the speaker ultimately fails.

b) your amp can not supply X watts: the amplifier attempts to supply the amount of power that the speaker is drawing, but can not. This causes clipping, as the electrical waveform from amp to speaker has its peaks and troughs squared off. The output sound is compressed and the speaker ultimately fails.

The key bit that many people don't get is that the speaker is the component that determines how much output power (i.e., wattage) is drawn from the amp.

by your theory, If I hook up a sub that is rated at 1000 watts rms to an amp that is rated at 25 watts rms, The amp will instantly clip, and blow the speaker?? Total BS Unless I've been doing something wrong for the last 30 years.... Clipping..yes, Overdriving.....Yes, too little power, not a chance.

vjarnot 06-09-2012 07:56 PM

Quote:

Originally Posted by RonRizz (Post 1763445)
by your theory, If I hook up a sub that is rated at 1000 watts rms to an amp that is rated at 25 watts rms, The amp will instantly clip, and blow the speaker?? Total BS Unless I've been doing something wrong for the last 30 years.... Clipping..yes, Overdriving.....Yes, too little power, not a chance.

I should have realized after the first time in this thread that this was going to end poorly...

No, your amp will not instantly clip. The point at which it clips depends on the efficiency of the speaker and the volume that you have selected (and also the input signal itself, as speaker efficiency typically varies with the frequency it is being asked to reproduce). You will cause your amp to clip when you select a level which your speaker requires more wattage to produce than your amp can deliver, as I wrote earlier.

Quote:

Originally Posted by RonRizz (Post 1763445)
Clipping..yes, Overdriving.....Yes, too little power, not a chance.

What, exactly, do you think causes clipping? Hint: it's that third item, which you gave "not a chance".

RonRizz 06-10-2012 03:52 AM

Hmmm. whatta ya know. All these years I thought clipping was caused by overdriving the input gains on your amp.

vjarnot 06-10-2012 12:13 PM

Quote:

Originally Posted by RonRizz (Post 1763906)
Hmmm. whatta ya know. All these years I thought clipping was caused by overdriving the input gains on your amp.

That's what I said.

Quote:

Originally Posted by vjarnot (Post 1763460)
You will cause your amp to clip when you select a level which your speaker requires more wattage to produce than your amp can deliver


Wicked CAS 06-11-2012 08:33 AM

Let's keep it on the topic... this member has a problem with a subwoofer and amp combo.... as a result he has a blown sub....

Sooooooooo, Did you call the vendor yet, and what happened.
Did you get serial number on the back of the sub or on the packaging.

Vertigo 06-11-2012 10:02 AM

Not yet - I'll have that info when Matt takes my sub out this weekend and puts my replacement sub in.

RonRizz 06-11-2012 03:13 PM

Quote:

Originally Posted by Wicked CAS (Post 1765657)
Let's keep it on the topic... this member has a problem with a subwoofer and amp combo.... as a result he has a blown sub....

Sooooooooo, Did you call the vendor yet, and what happened.
Did you get serial number on the back of the sub or on the packaging.

Roger that. Sorry, didn't mean to hijack you, vertigo.

morcheez 06-11-2012 06:12 PM

I have had the same 10" jlw3v3 for 7 years now... It has survived when 2 amps didnt haha

2ndChance 06-12-2012 01:25 AM

Sorry to hear that yours failed in such short time.. but I had a 10" sealed and 12" vented W3v3 setup in the past and they were wonderful, one of them was over driven past manufacturers limit for more than a year and still worked fine!

Vertigo 06-12-2012 09:49 AM

Thanks for all of the thread comments.
I guess the failure of the sub is probably due to a wiring error of 1ohm instead of being at 4ohms.

The thing I'm still not getting is, the other JL sub I have is still working completely fine being wired at 1ohm, and doesn't sound like it's getting too much power whatsoever. My volume levels are still as low as they were when the 1 sub stopped working.

If the wiring caused the subs to get wayyyyyy too much power, shouldn't they both be dead, instead of one being toast and the other working as good as new?

This is why I think there's something defective with the one sub.

reunited 06-12-2012 11:48 AM

a) Title of post
b) acknowledgement by OP that subs were wired wrong and received way too much power
c) one sub failed, the other didn't
d) Conclusion: since ONE sub did not fail, then the sub that failed must have been defective.

??????

Does this fail to make sense to anyone else or am I just having a bad day?

Vertigo 06-12-2012 11:58 AM

Quote:

Originally Posted by reunited (Post 1767942)
a) Title of post
b) acknowledgement by OP that subs were wired wrong and received way too much power
c) one sub failed, the other didn't
d) Conclusion: since ONE sub did not fail, then the sub that failed must have been defective.

??????

Does this fail to make sense to anyone else or am I just having a bad day?

^ you're having a bad day.

vividracing 06-12-2012 04:04 PM

Quote:

Originally Posted by Vertigo (Post 1767678)
Thanks for all of the thread comments.
I guess the failure of the sub is probably due to a wiring error of 1ohm instead of being at 4ohms.

The thing I'm still not getting is, the other JL sub I have is still working completely fine being wired at 1ohm, and doesn't sound like it's getting too much power whatsoever. My volume levels are still as low as they were when the 1 sub stopped working.

If the wiring caused the subs to get wayyyyyy too much power, shouldn't they both be dead, instead of one being toast and the other working as good as new?

This is why I think there's something defective with the one sub.

You were overpowering them substantially. If there was a defect, it wasn't the ultimate source of the failure. It may have allowed the woofer to fail sooner than the other, but the fact remains that they were severely overpowered.

Let's put it this way... If I put 2 brand new cars on the dyno and run them both at 2000 RPM over redline and one blows up before the other I can't really say that car was defective. It was being pushed beyond it's engineered limits. The other car just held out longer. Maybe the car that lasted longer was built a little better, maybe not.

Vertigo 06-12-2012 04:08 PM

Quote:

Originally Posted by vividracing (Post 1768457)
You were overpowering them substantially. If there was a defect, it wasn't the ultimate source of the failure. It may have allowed the woofer to fail sooner than the other, but the fact remains that they were severely overpowered.

Let's put it this way... If I put 2 brand new cars on the dyno and run them both at 2000 RPM over redline and one blows up before the other I can't really say that car was defective. It was being pushed beyond it's engineered limits. The other car just held out longer. Maybe the car that lasted longer was built a little better, maybe not.


Makes sense when you put it that way.
Thanks for everyone's patience with my questions. :tup:

Wicked CAS 06-18-2012 03:42 PM

One point I need to get out is, Being a Forum Sponsor who gives great prices to Forum members while trying to maintain a certain amount of profit to stay in business... This would have been brought up while putting a system together... And warranty issue would have been handled allready.

Keep that in mind...

sig11 06-18-2012 04:15 PM

Quote:

Originally Posted by Wicked CAS (Post 1777816)
One point I need to get out is, Being a Forum Sponsor who gives great prices to Forum members while trying to maintain a certain amount of profit to stay in business... This would have been brought up while putting a system together... And warranty issue would have been handled allready.

Keep that in mind...

You've always been great to do business with too! :tup:


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