torn spiders?

[cotjones 10+ year member]

i got a friend that has 2 swx-1242d's powered by 2 mrd-1005's the subs are in the same sealed enclosure which i told him not to do but he wouldn't listen... anyway his spiders have rips in both of them so hes planning on buying 2 new ones... was the reason his spiders tore so easily because of shareing the enclosure as i suspect or does that sound too unlikely? he has them in about 3 cubes which should be ok and i wouldn't think that those amps would blow his subs since they werent even set to 3/4th gain, lol i just think alpine is crap but i know that is desputeable

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[jmanpc 5,000+ posts]

sharing an enclosure won't hurt them. and with the gains 3/4 up, he probably had the gains too high... unless he has like a POS cd player

 

[bjboertje 10+ year member]

no, that would'nt tear the spiders.

 

[lilmaniac2 5,000+ posts]

yea after all not even 3/4 isnt even cranked all the way..

have any idea on what the gain even does?

 

[StealthKill 10+ year member]

Take any corners fast really sharp? Sounds kinda dumb but tore mine once being stupid.

 

[squeak9798 5,000+ posts]

It had absolutely nothing to do with the subs sharing the airspace.

More than likely improper gain or bass boost, leading to overdriving the subwoofers. And without doing more research on the subs, it could be that they also had a decreased mechanical power handling in that size of enclosure.

Though I agree with Chad, given your description it sounds as if you don't even understand what the gain does or how it works. That right there very well could be a large part of the problem.

But since you never really come here for advice, but instead ask a question and then insist that everyone who answered doesn't know as much as you and argue with the responders about how their answers were unintelligent/wrong/etc....I doubt that you'll heed our advice or even care what we think.

 

[cotjones 10+ year member]

Though I agree with Chad, given your description it sounds as if you don't even understand what the gain does or how it works. That right there very well could be a large part of the problem.

But since you never really come here for advice, but instead ask a question and then insist that everyone who answered doesn't know as much as you and argue with the responders about how their answers were unintelligent/wrong/etc....I doubt that you'll heed our advice or even care what we think.

i don't really know where this came from...

i cannot win for losein...

i ask some simple questions and i get this

i'm argueing that i know than everone here? i ask a simple question and allready have several people goin... "haha we know something he doesn't" lets flame!

i guess i'm just retarded but it just seems unlikely that an amp rated to put out 1000 watts, set at less than 3/4 gain would tear spiders on a sub that should handle about 1500... in an over-sized box too... i don't know what he has boosts set to but it didn't sound like he used them, it was quiet

 

[Immacomputer 10+ year member]

But since you never really come here for advice, but instead ask a question and then insist that everyone who answered doesn't know as much as you and argue with the responders about how their answers were unintelligent/wrong/etc....I doubt that you'll heed our advice or even care what we think.

At least he tries really hard and actually researches to try to pick apart the responses. It's pretty entertaining.

If the gains were not even properly set, I bet they were not matched either (and no, setting the gain to same spot on both amps is NOT properly matching them).

 

[lilmaniac2 5,000+ posts]

dude the setting on the gain is irrelavant, how are we supposed to know he doesnt have a 20v line driver in line there?

As soon as you explain to me how the gain being set to 3/4 is relavent ill help, until then your sol

tell him he needs to run a sub each size in the same box so he can hear all teh frequencies

 

[Immacomputer 10+ year member]

i don't really know where this came from...

This comes from all the previous threads where you think you know more than us and try to make us look dumb by pulling shit out of your *** and calling it fact.

i guess i'm just retarded but it just seems unlikely that an amp rated to put out 1000 watts, set at less than 3/4 gain would tear spiders on a sub that should handle about 1500... in an over-sized box too... i don't know what he has boosts set to but it didn't sound like he used them, it was quiet

Type-Xs are rated at 1000rms. 3/4 gain does NOT mean the amp will produce 3/4 of it's rated power. Amps can produce FULL power at the MINIMUM gain setting given the proper input voltage.

Increasing the gain beyond maximum unclipped output starts the square off the wave of the input signal. This creates more power and can make an amp put out much more power than it is rated at. It's very possible that the subs were getting more than 1500rms and being driven past their mechanical limits. This can cause harm to the driver and can tear spiders, throw voice coils out of the gap, rip surrounds, detach voice coils from the spiders, damage the rear of the coil, or detach the spider from the basket.

 

[Chevyaudio 5,000+ posts]

dude the setting on the gain is irrelavant, how are we supposed to know he doesnt have a 20v line driver in line there?
As soon as you explain to me how the gain being set to 3/4 is relavent ill help, until then your sol

tell him he needs to run a sub each size in the same box so he can hear all teh frequencies

I lol'd at the last part.

He may need to run some 10s for the high bass, and some 15s for the low bass.

 

[lilmaniac2 5,000+ posts]

and 8s for when he wants to drive fast

 

[cotjones 10+ year member]

no he doesn't have a linedriver he has regular sub outputs coming from a nice alpine HU... going by sound level i am almost certain he is not ever throwing even 1000 watts to each of them. for those of you that think he is getting 1500 out of that wimpy alpine, like wow.... but thanks for all the help!

 

[Immacomputer 10+ year member]

no he doesn't have a linedriver he has regular sub outputs coming from a nice alpine HU... going by sound level i am almost certain he is not ever throwing even 1000 watts to each of them. for those of you that think he is getting 1500 out of that wimpy alpine, like wow.... but thanks for all the help!

There you go telling us we don't know what we're talking about again. You have a serious problem accepting that other people know more than you. I know that there are people on this board who know a ton more than me and I also know there are people who don't know as much as me. If I know something is correct, I will stand up for it. You have a problem with somebody telling you that you are wrong and you can't back it up so you bullshit.

It's sad that you are this prideful on the anonymous internet. You must be completely annoying in person; I wonder how many true friends (friends who don't talk shit about you behind your back) you really have.

Also, there is NO WAY IN HELL that you can assume how much power an amp is putting out by ear. That is impossible for any human being to know by ear. And yes, that wimpy amp rated at 1000rms MIGHT be able to put out over 1500watts rms but it will not be a pure sine wave.

 

[cotjones 10+ year member]

If the gains were not even properly set, I bet they were not matched either (and no, setting the gain to same spot on both amps is NOT properly matching them).

this was my suspicion the subs playing slighty different at those levels could really be screwing with mechanical opperation, maby at one point makeing one or the other to over-excurt (watever) even when he's not getting 3000 watts out of his

(2) middle-line 1000 watt amps, lol