PDA

View Full Version : How would this enclosure act?



Cameron_B
01-22-2009, 08:12 PM
May look stupid, but how would a ported box with a compression chamber act?

Would it provide the

"spring" effect with also the advantage of a port.

http://img183.imageshack.us/img183/3346/compressionboxcm1.png (http://imageshack.us)
http://img183.imageshack.us/img183/compressionboxcm1.png/1/w640.png (http://g.imageshack.us/img183/compressionboxcm1.png/1/)

Pyro_By_Nature
01-22-2009, 08:17 PM
All I can say is LMAO :hilariou::hilariou::hilariou::hilariou:

:terrible:

cshaw
01-22-2009, 08:17 PM
the gap between the board and the wall would act like a port but with a port length of 3/4"

ive seen tri tuned enclosures work before.

Cameron_B
01-22-2009, 08:23 PM
Sorry I don't know about accoustic desgin.

I was just wondering.

schrummy
01-22-2009, 08:29 PM
build it and find out....

Immacomputer
01-22-2009, 10:12 PM
The port would become very inefficient. As the cross sectional area of the blocking section gets larger, the sub will begin to act more and more like a small sealed enclosure and the port will become less and less efficient.

BrianChia
01-22-2009, 10:30 PM
If the opening is small enough it will act like a crappy dual-chamber reflex box (unless tuned specifically and properly). Otherwise it will just act like a crappy bass reflex box.

Here's an example of a DCR (dual chamber reflex) enclosure:

http://diyaudioprojects.com/Drivers/FX120/Fostex-FX120-Recommended-DBR.png

cshaw
01-22-2009, 11:28 PM
reminds me of the dcr tri tune i was talking about but with slot ports.