Subs with thin tall surround and high xmax

[Death By Bass 10+ year member]

If you see the sub moving almost 3 inches back and forth by its own motor power without audible distortion you call this just throw?

x-mech.

maximum mechanical excursion, before something falls apart...

there are some SQ woofers, which have pretty much the same x-max, as x-mech, because, whats the point in a woofer that can do 100mm peak to peak excursion, if only 10mm of that is linear?

 

[Justintoxicated 10+ year member]

SoundSplinter 18"

 

[casper97ta 10+ year member]

I don't know about other series of DD but 9500 has over 1" one way excursion and must be linear.You can check my 9515 pushed to limits here
http://www.realmofexcursion.com/videos/Digital%20Designs/9515.2.wmv

****!! that thing is taking a freakin beating. does that sub still play normal?

 

[luv2bass 10+ year member]

Absolutely.Why not playing normal?

Since it doesn't have audible distortion means it is in its own Xsus and Xmag limits.

 

[luv2bass 10+ year member]

x-mech.
maximum mechanical excursion, before something falls apart...

there are some SQ woofers, which have pretty much the same x-max, as x-mech, because, whats the point in a woofer that can do 100mm peak to peak excursion, if only 10mm of that is linear?

By the term Xmech you must mean Xsus(DUMAX speaking).I know what you mean.

But here you can see the sub moving to limits of Xsus by its own power.I don't push it with external forces.

Maybe it's exceeding a bit the normal Linear Xmag but not much,and let me tell you that this sub could move more but i turned it down a bit(about 1db)because was starting making wierd noises coming from suspension.

I believe it's Xmag is very close to it's Xsus and maybe it is a bit higher.

 

[luv2bass 10+ year member]

Depending on how you measure xmax, yes.

I use Dumax theory.

Xmag = Excursion limit due to the magnetic limitations of the driver's motor. Xmag is defined as the displacement at which the BL product has fallen to 70% of its value at the cone's rest position.

Xsus = Excursion limit due to the driver's suspension. Xsus is defined as the point at which the compliance of the suspension has decreased to 25% of the value at the cone's rest position.

What theory makes you call this just throw?

I don't try to be a smarta$$,just asking your opinion...

 

[photocrazy8 10+ year member]

my TC's can move 50mm each way //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif extra High roll surround, only two of my sub ever made... linear VC so all that 50mm is linear //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[T3mpest 10+ year member]

x-mech.
maximum mechanical excursion, before something falls apart...

there are some SQ woofers, which have pretty much the same x-max, as x-mech, because, whats the point in a woofer that can do 100mm peak to peak excursion, if only 10mm of that is linear?

Older xxx baskets limited it at 34mm of throw, 32 linear...

 

[Death By Bass 10+ year member]

lol, do you guys even know what linear excursion is?

linear VC so all that 50mm is linear

that just makes no sense!

 

[ngsm13 5,000+ posts]

The voice coil length of dual 2ohms is 42 mm and the gap height 32mm.This is not underhung.I have done the recone myself and have the old coil.
The 14mm xmax you are refering to is based probably in a dumax test in a 9515 B series and is 12.9mm exactly.I don't know about the B series voice coil and gap height.

If you see the sub moving almost 3 inches back and forth by its own motor power without audible distortion you call this just throw?

You apparently aren't familiar with the definition of xmax.

R-tard.

nG

 

[ngsm13 5,000+ posts]

my TC's can move 50mm each way //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif extra High roll surround, only two of my sub ever made... linear VC so all that 50mm is linear //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Incorrect jackass.

nG

 

[luv2bass 10+ year member]

You apparently aren't familiar with the definition of xmax.
R-tard.

nG

So this is wrong?

Xmag = Excursion limit due to the magnetic limitations of the driver's motor. Xmag is defined as the displacement at which the BL product has fallen to 70% of its value at the cone's rest position.

Xsus = Excursion limit due to the driver's suspension. Xsus is defined as the point at which the compliance of the suspension has decreased to 25% of the value at the cone's rest position.

If you are familiar don't keep it a secret.Why don't you tell us?

 

[RaiN 10+ year member]

SoundSplinter 18"

I'm really interested to hear a review on these subs. They look pretty mean.

 

[ngsm13 5,000+ posts]

Gotta love coil rock...

With all those super cool tall surrounds.

nG

 

[dvcevoblack 10+ year member]

Mtx 9500 has tall surround also