well there are a few shops around here that build "wave boxes" they sell them for about $150-250 depending on how many subs you have. well i talked to the guy who builds them at a local shop called "THE SOURCE car audio" and he told me he has a computer program that he plugs the theil-small parameters and it calculates how he should build the box. and i have to say damn! he put this crappy $40 walmart 10 in one of his "wave boxes" and it hit harder and sounded more amazing than most systems i have heard. he had a cutaway of one and it was basically the recommended air space, then had a long port that wound around the actual enclosure. he said he uses the recommended surface area the sub requires for the port and then his program calculates the rest. does anyone have shops who build these boxes near them or know where i can get some info on building one? just though i would experiment with building one

 

Got a pic. You sure it is not a normal ported box.

 

it looks like a regular ported box but with one long *** port. i'm trying to figure this thing out. but damn that crappy 10 sounded better than most subs i have heard and he was only running 40 watts to it.

here's a pic on what the cut-away looked like

 

That is a normal slot ported box. Nothing special

Design it the way you would any other ported box using winisd. Just input the length and width of the port. When you build the box account for the port volume and you will be fine. For high output subs, slot porting is the only way I would go to gain the needed port area.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vteg &raquo;</TD></TR><TR><TD CLASS="quote">That is a normal slot ported box. Nothing special

Design it the way you would any other ported box using winisd. Just input the length and width of the port. When you build the box account for the port volume and you will be fine. For high output subs, slot porting is the only way I would go to gain the needed port area.</TD></TR></TABLE> where can you get winisd? so are you saying include the port volume in the actual box volume? but i don't understand such a long port though? can you explain this to me? because it looks really long. i have built ported boxes before but i always take the box volume and just add the port onto that. for example
here's a box i built for my friends MA Audio XL 12" it called for 2 cubic feet and X amount of port area ( i can't remember off the top of my head, its been about two weeks since i built it) so i took that port area and made the port 16"s deep since thats what the port calculator i used said to make to tune it to 30hz.



sorry if i'm rambling, but to recap everything... so basically for that design in my last post you include the port volume in the box volume? because he told me he built the necessary box volume meaning the middle section is X cubic feet, the he inputted the port area and theil small parameters into his "wavebox" program and it told him how long the port needed to be.

 

Winisd is here http://www.linearteam.org

First of all the smaller the box, and lower the tuning freq the longer port you will need. For example if you want to tune a 1 cube box to 30 with a 20 square inch port, you will need to bend the port to get it all in there.

For the box you posted I get 2.28 cubic feet after displacement tuned to 35.

You may also want to check out this page for more info http://www.diysubwoofers.org/prt/

 

maybe the port looks like a wave?

kinda like how ED's box diagrams are "snake" ported box? lol

 

I've been thinking about moving my JL 12w3 into a ported box like that

figure I might get better sound from it