enclosure volume port area and how many watts waht is the connection ?

[Joe X]

You reduce the enclosure size so that the cone does not move beyond it's mechanical limits which leads to damage. There are no general rule on how much you should shrink a box, it depends on the particular sub.

[BobbyG2]

Also, the more port area, the less it controls the cone, so if you have too much port area, you can have unloading issues similar to having too big of box. Too small of port area and you can loose output and have port noise.

[bkolfo4]

Also, the more port area, the less it controls the cone, so if you have too much port area, you can have unloading issues similar to having too big of box.

No.

[8ight]

Box volume reduction can help mechanical power handling to a certain degree but thermal compression will still become a problem with too much power to the drivers in any enclosure.

[Violence.]

Also, the more port area, the less it controls the cone, so if you have too much port area, you can have unloading issues similar to having too big of box.

No.

he is correct to a point. i took 50 inches of port from my port, was able to burp more power and gained a little on the meter. if the port is to big it messes with the pressure inside the enclosure. my subs would unload completly under 32hz and cone control is non exsistent. shunk the port down and got the cone control i needed. but i was also around 22 inches per cube on the port. added a little more backpressure and all was good.

Edited July 6, 2012 by Violence.

[bkolfo4]

Also, the more port area, the less it controls the cone, so if you have too much port area, you can have unloading issues similar to having too big of box.

No.

he is correct to a point. i took 50 inches of port from my port, was able to burp more power and gained a little on the meter. if the port is to big it messes with the pressure inside the enclosure. my subs would unload completly under 32hz and cone control is non exsistent. shunk the port down and got the cone control i needed. but i was also around 22 inches per cube on the port. added a little more backpressure and all was good.

Were you burping below your tuning frequency?

Are you sure your tuning frequency and net volume stayed exactly the same?

I would bet more variables changed than just the port area.

Edited July 6, 2012 by bkolfo4

[Violence.]

everything was the same. port volume was the same. and i burped 2 different tones. 35 and 40hz. tuning was 32hz. same power. clamped power was 13'126w clamped.

[8ight]

everything was the same. port volume was the same. and i burped 2 different tones. 35 and 40hz. tuning was 32hz. same power. clamped power was 13'126w clamped.

13kW!?

Edited July 8, 2012 by 8ight