burned up 2 type r 12"s last night

[DBfan187 5,000+ posts]

clipping does put out more power because of the extra power under the curve.

 

[DBfan187 5,000+ posts]

only 2 ways to kill a speaker:

1.) Exceed its thermal limits.

2.) Exceed its mechanical limits.

 

[Vega 10+ year member]

it is weird they blew up. 2 of them with a 1000w amp not even turned half way up.
bought them from FinestDeals on ebay

HEY thats exactly where I bought my L7 from. Blew in 3 days half gain less than 3/4 music volume. Hearing your story is making me think finestdeals might be kinda shady.

 

[PV Audio 5,000+ posts]

this thread makes me laugh wholeheartedly. stones covered it, but people like reading what they want to. the clipped signal is NOT a regular sine wave. when the amplifier is clipping, it IS sending out more power than normal..you cannot get away from that. now, the SIGNAL itself does NOT harm the speaker. the EFFECTS of clipping AKA more power is what kills the driver. this sounds familliar..let's go back to the beginning. he has a sealed box, and wanted more output. the EFFECTS of wanting more output were driving the amplifier to clipping to gain more OUTPUT, which in turn blew the speakers.

this isn't too difficult, everyone here just wants to be correct when it isn't possible.

 

[PV Audio 5,000+ posts]

and I'll say it again since people don't like to listen:

did the sealed box kill his speaker? NO

did his head unit kill his speaker? NO

did his amplifier kill his speaker? NOT REALLY, BUT YES

did HE kill his speaker? YES ENTIRELY

was it because he wanted more output which caused him to crank up his HU and his amplifier which inevitably killed his speaker? YES

/thread

 

[Mr. Opportunist 10+ year member]

and I'll say it again since people don't like to listen:
did the sealed box kill his speaker? NO

did his head unit kill his speaker? NO

did his amplifier kill his speaker? NOT REALLY, BUT YES

did HE kill his speaker? YES ENTIRELY

was it because he wanted more output which caused him to crank up his HU and his amplifier which inevitably killed his speaker? YES

/thread

it has nothing to do w/ more power its because of the clipped signal regardless if the amp put out more power clipped or not....

 

[stones 10+ year member]

Your a skinny kid with big ears and a bad hair cut aren't you?.

 

[Polecat 5,000+ posts]

only 2 ways to kill a speaker:
1.) Exceed its thermal limits.

2.) Exceed its mechanical limits.

//content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif

 

[DIGIDIGIBOMBO 10+ year member]

easy guys, now is this true? a sealed box always has a lower SPL than a poeted one? or does it depend on the sub characteristic? because for some subs they require a sealed and for others ported box. Lets say for my sub, manufacturers require a sealed box, is it safer to have a larger or smaller box enclosure than the recommended volume value? Also when setting gain with DMM for subs, they are barely moving, and i dont want to end up by burning them when i set the gain relying on my ears. Thx

 

[PV Audio 5,000+ posts]

it has nothing to do w/ more power its because of the clipped signal regardless if the amp put out more power clipped or not....

you are SO dumb it is amazing. too much power or you exceed the mechanical limits = blown sub. the clipped signal did NOT in itself blow the woofer. it never has, and it never will do that. this isn't just audio dude, this is in science in general.

 

[PV Audio 5,000+ posts]

easy guys, now is this true? a sealed box always has a lower SPL than a poeted one? or does it depend on the sub characteristic? because for some subs they require a sealed and for others ported box. Lets say for my sub, manufacturers require a sealed box, is it safer to have a larger or smaller box enclosure than the recommended volume value? Also when setting gain with DMM for subs, they are barely moving, and i dont want to end up by burning them when i set the gain relying on my ears. Thx

no one ever said a sealed box is always quieter hence USUALLY. post in the gain setting thread in the amplifier section for your question. is it safer to have either? if anything it would be SAFER to have a smaller. too large of a sealed box and you begin to have infinite baffle characteristics (or free air for those who know what i'm talking about //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif )

 

[stones 10+ year member]

easy guys, now is this true? a sealed box always has a lower SPL than a poeted one? or does it depend on the sub characteristic? because for some subs they require a sealed and for others ported box. Lets say for my sub, manufacturers require a sealed box, is it safer to have a larger or smaller box enclosure than the recommended volume value? Also when setting gain with DMM for subs, they are barely moving, and i dont want to end up by burning them when i set the gain relying on my ears. Thx

give these a read-

for enclosures

http://www.caraudio.com/vb/showthread.php?t=68635

for setting gains

http://www.caraudio.com/vb/showthread.php?t=63933

 

[DIGIDIGIBOMBO 10+ year member]

i already read them, and i am setting the gains using the P=VxI=V^2/R formula....but for subs its always resulting in a very very low output power. Sub is barely moving and i dont know why, for speakers its kinda working ok.Thx anyway

 

[PV Audio 5,000+ posts]

what do you mean..?

 

[geezy21unc 10+ year member]

all you guys who are arguing are fools for keeping this going....im sure the guy who needed his answer has it by now.....