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billfitzmaurice said:The number one failure is burned out voice coils, usually at power levels lower than the rating. Once you reach xmax any additional power applied gets no additional output, just additional heat. If that additional heat alone doesn't toast the coil it will result in thermal power compression, which reduces output. That usually causes the player to turn up more, which doesn't get more output, but does add more heat, which adds more thermal compression, which reduces output, which causes the player to turn up some more, etc. until the coil gives out.
Mechanical damage is actually rare, as most drivers have at least a 2:1 ratio between xmax and xlim, the damage point.
The number one failure is burned out voice coils, usually at power levels lower than the rating. Once you reach xmax any additional power applied gets no additional output, just additional heat. If that additional heat alone doesn't toast the coil it will result in thermal power compression, which reduces output. That usually causes the player to turn up more, which doesn't get more output, but does add more heat, which adds more thermal compression, which reduces output, which causes the player to turn up some more, etc. until the coil gives out.
Mechanical damage is actually rare, as most drivers have at least a 2:1 ratio between xmax and xlim, the damage point.
A perfect example of long term thermal damage. Even though the amp theoretically doesn't have enough power to fry a 450w coil it will happen if pushed hard enough long enough. And while the G-K is only rated for 200 into 8 ohms that's running clean; cranked it probably can produce twice that.I'm fairly sure the kappalite sustained some damage when I let a guy use my 800RB and cab for a set. They were WAY too loud. During our set my 800RB fried.
After that, the kappalite died.
I opened the cab to check connections and such......I noticed that the sticker was peeling off on the fried kappalite.....must have gotten really hot.![]()
Or trying to keep up with the guitarists!I agree with Matt and Jim and Kwesi. It's user behavior -- mostly ignorance or inattention or a combination of the two -- that blows drivers.
You realize the last post on this thread before yours was five years ago, right?Or trying to keep up with the guitarists!
+1. I've always been curious about zombie threads. Does the responsible necromancer go back through hundreds of pages of posts looking for the right corpse to resurrect?You realize the last post on this thread before yours was five years ago, right?
You realize the last post on this thread before yours was five years ago, right?
It don't matter how old a thread is, if it has usable info in it, then it is better to continue it than to start all over with a new one!
+1 I suspect they are getting them from searches.+1. I've always been curious about zombie threads. Does the responsible necromancer go back through hundreds of pages of posts looking for the right corpse to resurrect?
right. total number of speakers i've blown in 35 years using both solid state and tube...0.
Well now I have to modify that statement...earlier this year, I blew up the stock speaker in my Ampeg BA108 v1 by cranking it too hard, cranking the bass response too hard, then kicking on my MXR Bass Distortion full tilt. But it sounded absolutely wonderful for that brief shining momentMe too. Since 1977 playing in bands. 99% of the time using all tube amps. Never blown a driver.
User dumbness accounts for most crud these days. ... that's why we've dumbed down society. ..signs everywhere saying " this pond contains water which might get ya wet " etc etc. .. lowest common denominator. .. same as PC rubbish. .. if ppl are THAT stupid to NOT know when something is rude. Then they should suffer the consequences. .. PC-ness is just there to help the dopey.
All imo etc etc. ...![]()
right. total number of speakers i've blown in 35 years using both solid state and tube...0.
He got asked to lighten up on newbies once, refused, and left.Whatever happened to Bill? He hasn't posted in years, but he always had useful insights.