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View Full Version : Why are ported boxes generally bigger?



Bobyota
07-25-2003, 06:09 PM
To take in account volume lost by the port itself?

evo2k3
07-26-2003, 02:34 PM
though that is part of the reason there are several other contributing factors. As you increase volume, the length of the ports dont need to be as long allowing for larger port area and decreased port noise. Though i dont have a great explanation for the next reason, most would agree that larger boxes generally sound deeper and increase spl (due to the increased air volume/movement i think). thats all I have....im sure someone else may offer a more in depth explanation.

Bobyota
07-26-2003, 03:08 PM
Thanks :) I think I'll go with as much box as I can fit for the deeper sound ;)

F150Matt
07-26-2003, 06:43 PM
There is a point where bigger isn't better. Also the bigger the box the less power handling the sub will have. If your box gets too big it can act as free air.

Bobyota
07-26-2003, 07:14 PM
Yeah I'm definitely trying to figure in power loss with a bigger box. I was checking out some Adire Shiva's and they seem to need a lot of box if I want to do two ported 12's :crazy:

evo2k3
07-26-2003, 07:52 PM
Yeah I'm definitely trying to figure in power loss with a bigger box. I was checking out some Adire Shiva's and they seem to need a lot of box if I want to do two ported 12's :crazy:
its not power loss...its decreased power handling, meaning the bigger you go, the less power (watts) the driver will be able to safley handle.

MikeofTulsa
07-26-2003, 08:40 PM
shivas dont require alot of air space....like 1.5 or so recomended isnt it??? now i always suggest 2 - 2.5 tho.....

Bobyota
07-27-2003, 02:51 AM
I didn't see a recomendation for the Shiva, but they give examples of a 2, 3, and 5 ft ported box. 2 ft tuned to 25, 3 ft tuned to 20, and 5 ft tuned to 18 :eek: