Cone stiffness???

[yacob.naif 10+ year member]

Does the stiffness of a subwoofer effect it's ability to get loud?

I just got my 15" strokers today, and the **** things are STIFF!

I've only owned a relatively small number of subs over the years, but these are by far the stiffest to date, even stiffer than my apline type-x's, which i thought were pretty darn stiff......

The surrounds feel like they're made of hard molded plastic or something, and the cones barely budge if i try and press on them.....

Also, i'm assuming the subs are made stiff on purpose, but what's the reason for making a subwoofer extremely stiff? I mean, what's the purpose of giving a speaker HUGE power handling ability if it's impossible to move it in the first place? Wouldn't you be better off making a speaker that can get just as loud but takes less power to do it?

I obviously don't know much about the principles that go into designing drivers, so i was just curious to see if anyone can tell me the reason behind this?

Makes me paranoid about whether or not i'm gonna be able to get these **** things loud without pushing my amp to it's limits. //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

Click to read more...

 

[mastergunsx15 10+ year member]

i may be wrong but i think they make the spiders stiffer so that it can handle more power. efficiency may be lower b/c it needs more power to move it but handling is greatly increased due to the stiffness of the spider.

 

[iamamp3pimp 5,000+ posts]

something like that

trust me my old subs were very loose, but when i dropped the MT's in (which i could hardly move in the first place) it made a huge difference.

 

[BassAce 10+ year member]

My tempests are very loose and they get some good spl.

 

[yacob.naif 10+ year member]

well then... i guess i just wont know until i know.

hopefully the stiff cone means it will maintain good control under moderate load

but i'll just wait and find out this weekend //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif sooooo excited!

 

[Twistid 5,000+ posts]

my l7's are pretty stiff...

 

[yacob.naif 10+ year member]

these are actually replacing some 06 L7 15's, and it's a whole new definition of stiff

 

[Twistid 5,000+ posts]

lemme get the 15"s then....

 

[ktraughb 10+ year member]

stiffness equals strength and stability, which moves air more efficiently. a flexing cone equals a loss of the air it can pressurize, as well as distortion through flexing and making the coil movements slightly off line because the flex through the cone can affect all the way through the spiders. think of it this way, try fanning yourself with a thin piece of paper, then do it with a piece of cardboard. the cardboard will be more efficient to move air.

 

[60ndown 10+ year member]

an ill take the x'es

 

[yacob.naif 10+ year member]

stiffness equals strength and stability, which moves air more efficiently. a flexing cone equals a loss of the air it can pressurize, as well as distortion through flexing and making the coil movements slightly off line because the flex through the cone can affect all the way through the spiders. think of it this way, try fanning yourself with a thin piece of paper, then do it with a piece of cardboard. the cardboard will be more efficient to move air.

sorry, i really meant the suspension and spiders are stiff....

as in, the cone MOVEMENT is stiff...

 

[SUB_URBAN 10+ year member]

I want to know how those beasts sound, I'm thinking about getting a pair on ebay and powering them by an orion 2500d at .5 ohms.

 

[yacob.naif 10+ year member]

i'll let you know this weekend

i got tired to waiting for someone else to try them, myself, which is exactly why i got 'em...... i was originally planning on just going back to type-x's

but hopefully these are a nice blend of the sweetness of the x's with the nastiness of the L7's

 

[azbass 5,000+ posts]

i dont know about you but id not want my cone's to warp while playing...

 

[yacob.naif 10+ year member]

again, i mispoke (typed?) by calling the thread cone stiffness...... it's more a concern about the stiffness of the cone's movement.......

and sub urban, there's a video on realm of excursion with the EXACT setup you're describing if you want to indulge your curiosity