hey guys,





i have a massive gripe,



i have messaged the australian distributor of DD twice,



and iv messaged DD in USA, with no luck,



i need the t/s specs for the newer motor design 9915, with dual 1 ohm coils,



im about to get my install done, but stothers wont, and have every right not to, make me a box without these specs,





if someone could help me, that would be great,



if i cant find the specs within a couple of weeks....... anyone want to buy a 9915???





thanks guys

Phil is on his honey-moon and wont be back for a few weeks.
If you go onto the DD website, it has all the demensions for enclosures
for all the different woofers.

I'd be very interested in buying your 9915, dual 1ohm coils is perfect . Let me know asap if you wanna sell it.... Anyone wanna buy a 9515e? Lol

on the DD website, it says enclosures of any shape with the DD port...

wot if this isnt applicable in all circumstances???

they are guarding that sh!t witht their fkn lives man!!!!

either they have something to hide,

or they dont have the tools to measure these specs???

here you go....
http://forum.soundpressure.com/index.php
Model: DD 9915

Sd: 860.00 cm^2
Vas: 71.01 l
Cms: 6.86e-05 m/N
Cas: 5.07e-07 m^5/N
Mmd: 285.53 g
Mms: 299.80 g
Rms: 23.05 Ns/m
Fs: 35.1 Hz
Bl: 21.21 N/A
Re: 1.70 ohm
Qms: 2.87
Qes: 0.25
Qts: 0.23
Pmax: 1500.0 W

And yes, this is for a 9915b, nothing else. You also won't find these numbers published anywhere

thanks michae1,



but.... mama aint raise no fool...

"Model: DD 9915 dvc 3 ohm (quad 1.5 rewired under the dust cap)"



all that is rendered pretty much useless when you take into acount that that one is quad 1.5, and mine is dual 1...

i appreciate it though,



it seems that dd dont release this info to anyone,


so ill just use the 9515 specs that phil tried to pass off as 9915 specs on that same post as the one you got this info from...

charlie

its the same woofer (cone and motor assembly), just in a quad with different impedance, the specs will be the same.

when i searched soundpressure nothing came up. didnt look hard enough then. cheers michael. time for a new box!

no probs, wasn't that a thread u started???

Caydin: u realise that there will be more difference between your woofer and a 95 series than there will be compared to a 9915 even with quad coils?

The T/S specs you need for port designing for the 9515 and 9915 are the same.



The only difference between the two woofers is the moving mass, which has no real world bearing on the box design.



Motor force and suspension compliance are the critical factors, these are the same on 95s and 99s.



I'm happy to design you the best box for the application. Real world design experience is far more valuable than T/S numbers plugged into software for a theoretical prediction.



Phil



PS: As I write this, I'm sitting in Jassa's (the DD guru) kitchen.