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do you know Ohm's Law? when running an amp at low impedance you get high current, regarless of class. You obviously don't understand the physics of electricity.
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you make me laugh,lol. so what if it was a powerbass amp running at 1ohm? if the amp is stable it is stable. i have burped subs under .25ohm load and never had a fire. i dont believe the amp was running strait ac current.
we know what happened to the sub it got misaligned in the gap and got stuck and didnt damage the coil withoutmovement is was just a heating coil til it burt into flames.
PLEASE school me.
maybe it's just me, i miss when powerbass made good quality subs like the old xs's...
Posts: 6356 | From: north rose,ny | Registered: Aug 2002
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posted
Hey lets burn a sub and get someone to look at us.
-------------------- Do you know why no woman will ever be truly satisfied? Because no man will ever have a chocolate penis that ejaculates money..... Posts: 727 | From: Green Bay WI | Registered: Sep 2006
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Here's where I butt in... Ohm's Law in an AC circuit (ie speaker) is pretty complex. I think what you are referring to is the current seen by the amplifier (DC Current) if you are applying V=IR or any variation of that. In that case would not the amplifier be expected to burn instead of the sub?
Posts: 21 | From: Powell River, BC | Registered: Jun 2008
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I'm not referring to an issue with the amplifier. when you bring the impedance down, the power goes up, the voltage goes down, the current goes up. When you run a lot of current through the voice coil it has to dissipate more heat. If it can't dissipate enough heat it will burn. If it expands in the gap and cannot cool itself at all, then it will either open or burn. i'm very surprized that it burned, however, due to his sloppy and dangerous installation we can't take responsibility for it.
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But he did not change the resistance of the voice coil. The manufacturer of the sub did. I can't run a single voice coil with 4 Ohms resistance at 1 Ohm for example. If I run 4 of said subs, yes the current at the amp does increase as it is a 1 Ohm load, but the current is shared between the subs. They aren't each getting the same current a 1 Ohm sub would have received..
Posts: 21 | From: Powell River, BC | Registered: Jun 2008
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there should be enough room in the gap for a daily sub for it not to lock up from heat swelling it. i know all the xl subs use alot smaller motors that in the past powerbass subs is that how u brought Bl up by tightening the gap. if so a tight gap is no good for daily listening to music.
i doubt the voltage on that amp was dropping that much being a class D that puts out around 1500-1800rms and he had a extra battery.
yes it was a sloppy install but the amp didnt fail a sub caught on fire!
Posts: 6356 | From: north rose,ny | Registered: Aug 2002
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so no one has ever seen a sub burn a voice coil,burn itself back together and then still play with a shorter voce coil?Just play a sub and hold it from moving and see how hot you can get it,before something bad happens.
-------------------- Do you know why no woman will ever be truly satisfied? Because no man will ever have a chocolate penis that ejaculates money..... Posts: 727 | From: Green Bay WI | Registered: Sep 2006
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quote:Originally posted by powerbassusa: If you had that running at 1ohm, then you are pouring high current through the vc's. Also, your installation is DANGEROUSLY messy. I'm surprized you haven't had a fire before this. On the right, you have a large battery held in place by the sub, on the left you have wires pinched between the sub and the amp. That's just not safe, my friend. Proper installation is more important than ANYTHING!!!
listen, wtf does the safety of the install has to do with one of your subs going on fire?
the amp is ment to be ran at 1 ohm. i dont know how having a battery close to the sub caused it to go on fire? maybe u can explain.
the subs were even hardly getting over their rated rms power, IF they even were getting around RMS, yet one of them went on fire.
i think instead of trying to bash me, you should be explaning why YOUR sub went on fire. and no, the amp did not cause that. had the same amp for 4 years now, always ran at 1 ohm. YOUR sub was the only one that ever went on fire. The amp is still being used with another brand of subs without any problems, and yes, it is at 1 ohm.
i dont even believe that you work for powerbass. no respectable company representative will come on a forum and bash an install or a person who uses THEIR product. if you read all my posts in this thread, not once did " I " bash the company or their product. This thread is simply a fact, nothing more, nothing less. The sub went on fire, never did I say it was a bad thing nor did i say it was a good thing.
And now, because you decided to bash me, I am going to package the left overs of your peice of shyit garbage product that unexpectedly and unexplainably went on fire, and ship it it back to you. But not for warranty work, because never in my life will i EVER use YOUR GARBAGE in my car UNLESS I WANT IT to go on fire. I will send it back to you so you can glue it together and put it in YOUR car. But I suggest your paint it pink first, so it will surely reflect the full degree of homosexuality of your product, company and its representatives.
quote:Originally posted by powerbassusa: I'm not referring to an issue with the amplifier. when you bring the impedance down, the power goes up, the voltage goes down, the current goes up. When you run a lot of current through the voice coil it has to dissipate more heat. If it can't dissipate enough heat it will burn. If it expands in the gap and cannot cool itself at all, then it will either open or burn. i'm very surprized that it burned, however, due to his sloppy and dangerous installation we can't take responsibility for it.
I bet with garbage products like this you never take any responsibility for any failures. cuz all your time would be taken up by "taking responsibilities".
2006 Street A - 152.7 Certified 2007 Street C - 154.8 Certified 2007 Street A - 154.4 Certified 2008 Street C - 156.3 Certified 2008 Street B - 156.6 Certified
quote:Originally posted by Tinted: But I suggest your paint it pink first, so it will surely reflect the full degree of homosexuality of your product, company and its representatives.
BAHAHAHA. And to think, i was considering powerbass components.
-------------------- ...sub go boom Posts: 1 | From: T Dot | Registered: Jul 2008
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I'd also like to think this individual does not work for Powerbass. He would probably give a name and some contact info if so?
Posts: 21 | From: Powell River, BC | Registered: Jun 2008
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x2 powerbass(base) kicked tail end. and after the spelling changed i had 4 black 15's 1 pair in truck that smoked in less than a min. and the other pair in under 30 sec. cut the cone and looked at the vc.....WAY out of center it almost all they way to the other side of magnet....took over a month to get some more subs( and I sold pb for 2 1/2 years ) to get em replaced.....every thing was set with a o-scope....and never got more than 400 watts per sub!
-------------------- just another john doe re audio maxxsonics audiopipe word to your mother Posts: 669 | From: kickin just outside of seattle WA | Registered: Jan 2003
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^^^ i still have like 10 pairs of old coax and comps from the "base" days...lol
-------------------- just another john doe re audio maxxsonics audiopipe word to your mother Posts: 669 | From: kickin just outside of seattle WA | Registered: Jan 2003
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My name is Jay, I've been known as Superjay for a number of years in the industry. You can find my contact info on our website for tech support. This was brough to my attention by the Warranty manager, who made the decision not to warranty the sub. Also, considering the customer is in Canada, we don't handle warranties there; it would be handled through Keystone; the importer.
I have been in the industry for 17 years, as a competitor, installer and manufacturers engineer, including my previous position at Eclipse, in both R&D and Product Planning.
I have been at PowerBASS for a month now, and was hired to improve quality control, design a higher quality new line and fix many of our issues that have come about over the last couple years.
I cannot stress enough how important a SAFE AND QUALITY install affects the life of the product. I have seen far too many trunk slammer installs, such as this customer's example, that lead to failure where the customer blames the product, rather than his own ineptitude.
For the record, I was not "slamming" the customer, but stating that I can't help but notice the install is of less than stellar quality.
If anyone has questions or issues with PowerBASS products I urge you to contact me directly at either:
tech@powerbassusa.com or j.kent@powerbassusa.com
Again, this was not meant to slam anyone, I merely think that install and care are of utmost importance to safety and longevity to any system.
posted
when powerbass took the line from distributor and gave it to the other guy midyear after i showed him pb and got the name going. and the other guy sucks butt!...i said never again.
-------------------- just another john doe re audio maxxsonics audiopipe word to your mother Posts: 669 | From: kickin just outside of seattle WA | Registered: Jan 2003
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dont worry i wont be making any warranty claims. i dont want any more junk.
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2006 Street A - 152.7 Certified 2007 Street C - 154.8 Certified 2007 Street A - 154.4 Certified 2008 Street C - 156.3 Certified 2008 Street B - 156.6 Certified
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