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I was curious if having coil rub or a off balanced/ non linear coil cause a amp to blow out? Thanks in advance
Your statement is conditional, not actual. You can destroy any speaker with gains set to cause clipping above an acceptable level – it will ruin any driver attached to it. As long as you don't drive the amplifier into clipping, it won't hurt, but it's not very easy to hear a small (but big enough to kill a driver) distortion on a subwoofer, so many people kill their subs by under powering them and pushing the amp too far without knowing it. The same in essence as incorrect gain settings causing the issue which would be a condition imposed by the user, not applicable laws of physics.That's user error you're describing...you can run a 100w amp to drive a 1k rms sub without damaging anything...just set your gain properly and you're golden...granted the sub will not get loud but you won't hurt the driver under powering it...
That's failure due to improperly setting your gain...that's not failure from under-powering a sub...there is a difference...Your statement is conditional, not actual. You can destroy any speaker with gains set to cause clipping above an acceptable level – it will ruin any driver attached to it. As long as you don't drive the amplifier into clipping, it won't hurt, but it's not very easy to hear a small (but big enough to kill a driver) distortion on a subwoofer, so many people kill their subs by under powering them and pushing the amp too far without knowing it. The same in essence as incorrect gain settings causing the issue which would be a condition imposed by the user, not applicable laws of physics.
And that’s quibbling.That's failure due to improperly setting your gain...that's not failure from under-powering a sub...there is a difference...
I'm not sure where you learned electronics, but whether it was multi-million dollar military radar systems or replacing OP amps in HUs, I never heard of or seen a functioning AC circuit producing DC because of a messed up gain structure. If the output x-sistor shorts to rail voltage, then we would have DC voltage, which isn't going to last long before something else catastrophically fails. If you use a DC input signal then I can force the AC circuit to produce DC. Otherwise AC circuits are AC circuits, in this case it's just distorting the signal.Didn't say it creates it.
The relationship between clipping level and DC voltage is, In summary, the clipping level is directly related to the DC voltage in a circuit, as it determines the maximum amplitude a signal can have before it gets distorted. Clipping circuits cut-out (chop) part of the input. Clipping circuits always add a DC voltage to the output. AND, yes, clipping circuits may be used to add a DC bias to the input. Clipping circuits can turn sinusoidal waves into square or triangular waves. All this is correct but in the end. The answer to the OP is:
Your woofer is broken or damaged and you should not use it on any amplifier or it will most likely result in something getting fried.
As a matter of fact, you didn't underpower the at all, you cranked the gain to 11 which overpowered the sub, exceeding it's thermal rating and you get that lovely burning smell.That's failure due to improperly setting your gain...that's not failure from under-powering a sub...there is a difference...
If you want to say you can smoke a sub because you cranked the gain up to 11...I'll agree with that...but that's not damage from under-powering...
Because he wants an excuse to buy a new amp???I’m still trying to figure out why the OP is still trying to use a driver that had rubbing that apparently he has now corrected. I’d be willing to bet that one of or the single VC has an intermittent short in it and that can cause the amp it is hooked up to fail if the amp does not have built in voltage/short protection
As a matter of fact, you didn't underpower the at all, you cranked the gain to 11 which overpowered the sub, exceeding it's thermal rating and you get that lovely burning smell.
That's as good a reason as any! I'd never risk using a coil that "had" rubbing issues, not worth it unless you can prove beyond a reasonable doubt that it's not an issue. Doesnt take much to rub a goil the wrong way!Because he wants an excuse to buy a new amp???
I'm not sure where you learned electronics, but whether it was multi-million dollar military radar systems or replacing OP amps in HUs, I never heard of or seen a functioning AC circuit producing DC because of a messed up gain structure. If the output x-sistor shorts to rail voltage, then we would have DC voltage, which isn't going to last long before something else catastrophically fails. If you use a DC input signal then I can force the AC circuit to produce DC. Otherwise AC circuits are AC circuits, in this case it's just distorting the signal.
For example, in the a case of a clipped signal, we wouldn't calculate the increase in voltage, power and current using DC voltage. We would use AC voltage to do our power calculations (AC voltage =the area under the curve - see image). The extreme example would be a unclipped square wave, which would double output without clipping yet would certainly be AC voltage. Many DC to AC convertors use square waves or a variation of them.
“If the output x-sistor shorts to rail voltage, then we would have DC voltage, which isn't going to last long before something else catastrophically fails. If you use a DC input signal then I can force the AC circuit to produce DC. Otherwise AC circuits are AC circuits, in this case it's just distorting the signal.”I'm not sure where you learned electronics, but whether it was multi-million dollar military radar systems or replacing OP amps in HUs, I never heard of or seen a functioning AC circuit producing DC because of a messed up gain structure. If the output x-sistor shorts to rail voltage, then we would have DC voltage, which isn't going to last long before something else catastrophically fails. If you use a DC input signal then I can force the AC circuit to produce DC. Otherwise AC circuits are AC circuits, in this case it's just distorting the signal.
For example, in the a case of a clipped signal, we wouldn't calculate the increase in voltage, power and current using DC voltage. We would use AC voltage to do our power calculations (AC voltage =the area under the curve - see image). The extreme example would be a unclipped square wave, which would double output without clipping yet would certainly be AC voltage. Many DC to AC convertors use square waves or a variation of them.
If your amplifier is outputting DC voltage the cone will either pop out or in and not move whatsoever. Apart from catastrophic failures of a small handful of circuit designs I can't say I've ever even heard of this happening. Where did you come up with this theory?The shape provides the conduit for DC to enter into the circuit.
I was referring to distorted current, when the signal is clipped. Got DC stuck in my head, just a brain fart. One should not drink and forum!If your amplifier is outputting DC voltage the cone will either pop out or in and not move whatsoever. Apart from catastrophic failures of a small handful of circuit designs I can't say I've ever even heard of this happening. Where did you come up with this theory?
What is that even supposed to mean? I can guarantee this is NOT a term you would find in any electronics textbook.distorted current,