Welcome, Guest. Please Login or Register
Decware Audio Forums
04/24/14 at 23:02:56


Pages: 1 2 
Send Topic Print
Dual ended Deathbox? (Read 5381 times)
Jet-Lee
Ex Member



Dual ended Deathbox?
04/04/06 at 16:19:17
 
I just had a thought while looking at this forum. What would happen if you iso loaded two db's, then removed the covers on the vented ends, and butted the two db's together?
Back to top
 
 
  IP Logged
Adrian D.
Ex Member



Re: Dual ended Deathbox?
Reply #1 - 04/04/06 at 16:25:13
 
i was thinking about two dbs sharing the same sealed chamber, each tuned identiacally.
i guess sharing the vented part would affect tuning.
Back to top
 
 
  IP Logged
Jet-Lee
Ex Member



Re: Dual ended Deathbox?
Reply #2 - 04/04/06 at 16:34:16
 
'twas just somethin' that popped in my head and I figured I'd toss it up for discussion.
Back to top
 
 
  IP Logged
Adrian D.
Ex Member



Re: Dual ended Deathbox?
Reply #3 - 04/04/06 at 17:00:13
 
one thing's for sure, any way you would join 2 dbs together it would look great.
ii would tune first, then remove the lids, and put some sort of mdf strips on the inside of one box, so that the other box would slide onto those. that way you could bolt them togeter, without affecting the look.
is it neccesary to iso-load when doing this "coupling' ?
Back to top
 
 
  IP Logged
Adrian D.
Ex Member



Re: Dual ended Deathbox?
Reply #4 - 04/04/06 at 17:03:14
 
if the 2 dbs would share the sealed chamber, you would end up with something like a tunable hw
Back to top
 
 
  IP Logged
DirtDawg
Ex Member



Re: Dual ended Deathbox?
Reply #5 - 04/04/06 at 17:19:10
 
How about putting the sealed ends together and tuning each a little different? ???

Sounds like a Housewrecker. Undecided
Back to top
 
 
  IP Logged
Adrian D.
Ex Member



Re: Dual ended Deathbox?
Reply #6 - 04/04/06 at 17:41:09
 
dd, don't try to steal my ideas  >:(  :D
Back to top
 
 
  IP Logged
gexter
Ex Member



Re: Dual ended Deathbox?
Reply #7 - 04/04/06 at 18:05:56
 
DD is right and knows it..
6th order bandpass.
this has been discussed before awhile ago.. However its always good to rethink things.
The one we were discussing was a tunable HWK. the center chamber was adjustable. I had started one but it was to much work for a fella that has other real life things to do.
the center volume was adjustable as well as the insert volume..
I think it's an awsome idea but needs a whole lot of attention to sealing and trail and error..

Think you new wife will go for it Jet?

I had the time I would play with it, but thats what kind of fella I am at heart....experimentation rules......
Back to top
 
 
  IP Logged
Adrian D.
Ex Member



Re: Dual ended Deathbox?
Reply #8 - 04/04/06 at 18:15:17
 
imagine 2 db12s put togheter. that would be one tall mother f-er.
gex, having 2 dbs sharing the sealed chamber would be a diffrent animal from your tunable hw. you said that the center chamber was meant to be tunable in you 'experiment'. but having 2 dbs means that you can tune all the three chambers, and play with the freq the vented chambers are tuned at.
it would probalby be more accurate than a hw  ???
Back to top
 
« Last Edit: 04/04/06 at 18:19:18 by adi_ro »  
  IP Logged
Jet-Lee
Ex Member



Re: Dual ended Deathbox?
Reply #9 - 04/04/06 at 18:17:12
 
The wifey will go for it, no problem. Her car would be the test subject. Cheesy

But first, I'm backlogged on box building. I still gotta build my buddies box for his 2 12's for his Prelude, then my surround system, then tweak a buddies box, THEN I'll have the time to do eet. Plus, I still need to buy access to the plans, I wanna do it right.

Adrian, I said iso-load them simply because I have enough drivers to do so(in a db10), and power, so why not?
Back to top
 
« Last Edit: 04/04/06 at 18:19:09 by Jet-Lee »  
  IP Logged
Adrian D.
Ex Member



Re: Dual ended Deathbox?
Reply #10 - 04/04/06 at 18:20:41
 
agreed about iso. you would free some storage space Wink
Back to top
 
 
  IP Logged
gexter
Ex Member



Re: Dual ended Deathbox?
Reply #11 - 04/04/06 at 18:44:27
 
so are you saying that it would not be a 6th order bandpass?

the center would slide back and forth as well as the volume inside the slide adjustable is what I intended to attempt to build.

The oppurtunities are endless as well as the configurations.. It does not have to follow all the rules to work and thats all I know.
Back to top
 
 
  IP Logged
J_Rock
Ex Member



Re: Dual ended Deathbox?
Reply #12 - 04/04/06 at 19:37:11
 
The sealed chamber for two woofers wouldn't have to be as large as a single chamber for the same subs.  The iso loading would have the VAS of each driver, allowing you to place them in half the size.

I would imagine with two subs which are isoloaded yet two of them in the same selaed chamber would work best with the sealed chamber the same size.

yes this has been talked abotu before also, i still got the pics I drew to explain better.



Back to top
 
 
  IP Logged
Jet-Lee
Ex Member



Re: Dual ended Deathbox?
Reply #13 - 04/04/06 at 19:50:43
 
That's kind of opposite what I'm going for.....

here:


Keep in mind, I know nothing of the internals of the DeathBox. I'm just guessing based on J's pictures.
Back to top
 
« Last Edit: 04/04/06 at 19:59:53 by Jet-Lee »  
  IP Logged
J_Rock
Ex Member



Re: Dual ended Deathbox?
Reply #14 - 04/04/06 at 19:58:54
 
well, in that case, i would tune a normal DB to what sound sbest, then half that volume for the volume at the ends of the box in your drawing.

The middel would then be twice the distance from the top by the port, with the port being two half moons pushed together.

It would look seriously tight though, and would have th epotential to kick ass.
Back to top
 
 
  IP Logged
Pages: 1 2 
Send Topic Print