difference between low tuned ported box and 4th order

[irvin productionz 1]

i am planning on upgrading my system, but im still undecided if i should make it ported or a 4th order box, what will be the pros or cons of each, and what would be better

it will be a blowthrough on a silverado, planning for 4 15" dc lvl 4 and a dc 5k, but right now i just want to build a box first, thanks

[95Honda 486]

A vented box is a 4th order.

Do you mean a 4th order bandpass?

If so, then a bandpass can have higher efficiency over a smaller bandwidth... That's about it in a nut shell.

[bassahaulic 155]

If you mean in the bed of the truck below window line. Then there is no option. It has to be a 4th order bandpass.

[Julian 641]

A vented box is a 4th order.

Do you mean a 4th order bandpass?

If so, then a bandpass can have higher efficiency over a smaller bandwidth... That's about it in a nut shell.

Purely out of curiosity, I know this will depend on tuning but how large is the bandpass? I know usually you would tune fairly high what would be the usable frequency and most efficient?

[Quentin Jarrell 671]

If you mean in the bed of the truck below window line. Then there is no option. It has to be a 4th order bandpass.

Why would it have to be bandpass?

[ssh 924]

A vented box is a 4th order.

Do you mean a 4th order bandpass?

If so, then a bandpass can have higher efficiency over a smaller bandwidth... That's about it in a nut shell.

Purely out of curiosity, I know this will depend on tuning but how large is the bandpass? I know usually you would tune fairly high what would be the usable frequency and most efficient?

You can model it up in winisd.

[bassahaulic 155]

If you mean in the bed of the truck below window line. Then there is no option. It has to be a 4th order bandpass.

Why would it have to be bandpass?

Unless you can fit all 4 straight across the bed with the port, then it won't be.

[Quentin Jarrell 671]

If you mean in the bed of the truck below window line. Then there is no option. It has to be a 4th order bandpass.

Why would it have to be bandpass?

Unless you can fit all 4 straight across the bed with the port, then it won't be.

Unless the front "chamber" is tuned, it's not a bandpass enclosure. Same idea as a manifold enclosure used extensively in HT. Albeit it's in a ported box and not IB

[RAM_Designs 25]

The 15" and 18" Level 4's work great in 4th order BP setups.

[Randal Johnson 544]

is that your truck thats in your avitar ?? If so, I'd like to see more pics of it ...