Is this sub driver for real......

[rabbitz]

http://quadrasub.netfirms.com/qs21.htm

No T/S parameters listed.

 

[Zymrgy]

wow.....

 

[sam9]

Won't even speculate on how they sound, but it is gratifying to see someone who provides ratings at continous operation. On the other hand I tend to be suspicious os the "everyone but us is a crook" pitch.

 

[Cal Weldon]

Those are really something

I notice they also have the QS23.4 at 23"

Can't see those being the end all but they probably kick butt pretty good.
I wonder how long they run before something goes out of whack.
I love the spirit anyways, rock on!

Cal

 

[REDSKIN]

if you thought 21x21 was big...............

I know that some threads on various boards regard Audiobahn as less than quality but if size is important check out

www.audiobahninc.com/frameset.html

Once there click "tech support" then click "2003" then click "2003 t/s parameters" then click "linear compression". Phew what a lot of clicks but look at the AWT34X. 34" is seriously big and with a one way xmax of 30mm thats got to move some air.

Mind you if you want bigger still I was reading about a new speaker on the www.inhumanaudio.com forums, but I can't remember which thread it was under, that talked about a 48x48 speaker that was available custom built by them.

 

[busterno1]

dont forget you get a free t shirt & a birth certificate with each one

 

[Guss]

dont forget you get a free t shirt & a birth certificate with each one

Yeah, worth it after all 🙄 lol a t-shirt! 130lbs, i can't see any secure operating mounting but upfiring with this one...

Do they really have to feel that sorry for you to give you a t-shirt when you buy one ???? 😀

 

[SkinnyBoy]

Re: if you thought 21x21 was big...............

I know that some threads on various boards regard Audiobahn as less than quality but if size is important check out

www.audiobahninc.com/frameset.html

Once there click "tech support" then click "2003" then click "2003 t/s parameters" then click "linear compression". Phew what a lot of clicks but look at the AWT34X. 34" is seriously big and with a one way xmax of 30mm thats got to move some air.

don't bother following those directions.... lol just go here.. 😛
http://www.audiobahninc.com/tech/2003/theileSmall/2003_Theile_Small_Params.html

 

[Bose(o)]

It says, MORE T/S Paramters listed. Honestly, with an fs of "free-air resonant frequency of the speaker. This is when the the weight of the moving parts comes into balance with the suspension system, (spider/s and surround)" YOU CANNOT RESIST!

TS

Anyway, I'll stick with my Adires anyday. Sorry...I'll buy 4 Shivas and they will sound BETTER than your single (though its four) woofer (s).

 

[mikee12345]

awt34x BS

if its so amazing then why does no one have one 🙂

Larger woofers= IB etc ONLY . box size impossibly large.
the 18sound 21" isnt bad though,it has large motor damping ,low Qts.



awt34x

13hz Fs
Qts=0.96
Vas=740L
eff=89db
xmax=15mm

dumb. with a Qts like that, no box is any good. Free air / IB only. Lack of cone control, lowest Qtc possible is 0.96 ,which is too high.

A qtc of 0.7 would be acceptable

I hate dumb woofers with crap specs,and no THD measurments from a dodgy company that people know as the cheapest value for money company

🙄 ,keep an eye out for the parthenon (with attached panel) see where it ends up....

 

[Bose(o)]

Well, I've only seen the Parthenon motor though, am awaiting pictures from CES to see it as Adire's display.