Welcome, Guest. Please Login or Register
Decware Audio Forums
12/21/14 at 12:51:04


Pages: 1 2 
Send Topic Print
Horn throat area reduces? (Read 9203 times)
mwsartain
Verified Member
**




Posts: 4
Re: Horn throat area reduces?
Reply #15 - 07/29/08 at 03:24:35
 
Keep us posted Johncc ! I'm curious of your results.



Oh, and good luck!
Back to top
 
 
  IP Logged
musgofasa
Seasoned Member
****


Where is that
monkey? I want to
shoot something!

Posts: 556
Re: Horn throat area reduces?
Reply #16 - 07/29/08 at 15:07:48
 
I had a thought this morning. Have you ever heard of a "quasi port" band pass design? Back in the early nineties, it was a popular design. Basically it was a 4th order box with one woofer in a sealed chamber on either side of a shared chamber that contained 4 ports, each tuned to a different frequency. I think the WO probably performs closest to this in function. Admittedly, I believe it is more efficient and has a smoother response, but I think this might be the closest resemblance to the design I can think of.

Good luck to both of you you guys.

Keep us posted!
Robert
Back to top
 
 

The graveyard is full of important men
musgofasa   IP Logged
Steve Deckert
Administrator
*****


If the 1st watt
sucks why continue?

Posts: 2445
Re: Horn throat area reduces?
Reply #17 - 07/30/08 at 00:05:35
 
If you haven't built the cabinet yet, here are some thoughts, if you have, I apologize.

The box can be scaled up or down, but the proportions must remain the same.

Scaling the box down will raise the cut off frequency causing you to compensate with more power or EQ boosting the low bass.  That in turn will will create a clipping condition in the amplifier which will fry the voice coil.

Since your vehicle will have no cabin gain, this problem is multiplied by a factor of at least 3.

Best box, most possible bass for that vehicle is a DBK10, deathbox.

Steve
Back to top
 
« Last Edit: 07/30/08 at 00:06:08 by Steve Deckert »  
WWW   IP Logged
johncc
Verified Member
**




Posts: 9
Re: Horn throat area reduces?
Reply #18 - 07/30/08 at 01:59:31
 
Steve,

Can you comment on my thought that I try to retain the size of  the port/horn section in the scaling down process?

Thank you.
John.
Back to top
 
 
  IP Logged
johncc
Verified Member
**




Posts: 9
Re: Horn throat area reduces?
Reply #19 - 07/30/08 at 02:40:59
 
musgofasa,

Thanks for the suggestion.  Looks like quasi port is a fairly complicated design process though.

John.
Back to top
 
 
  IP Logged
johncc
Verified Member
**




Posts: 9
Re: Horn throat area reduces?
Reply #20 - 08/01/08 at 00:52:38
 
On further research and because my space constraints make the scaling of the WO design iffy, I have decided not to proceed.  (I will go with a conventional ported enclosure.)  Thanks to those who have provided input and good luck with your own projects.

John.
Back to top
 
« Last Edit: 08/01/08 at 00:56:03 by johncc »  
  IP Logged
aznboi3644
Seasoned Member
****


I love YaBB 1G -
SP1!

Posts: 115
Re: Horn throat area reduces?
Reply #21 - 09/19/08 at 00:49:12
 
I'm new to Hornresp but if Hornresp can model a front loading horn than I believe the WO can be modeled in the program.

I read an article that explained the very close similarities between a front loaded horn and a bandpass enclosure.

I'll try to dig it up
Back to top
 
 
  IP Logged
Pages: 1 2 
Send Topic Print