the ported box concept

The port is 34.625 long.   Switch to Tylenol.

Yes, you can make a port opening any size you want and adjust the length to create the proper tuning frequency for the volume of the enclosure.  But there are significant design criteria and performance issues you must understand when designing an enclosure.  Do you understand what the port is doing and how it works?Support the12volt.com

DYohn wrote: Do you understand what the port is doing and how it works?

Not really...  I'm gussing if the sub is rated for 20-50mh, you would make the port to fit into that range. As far as exacvtly what it is doing and why, I don't have a clue

Some fear the Abyss... Other, chase it into the DEPTHS !!!

I'm gussing if the sub is rated for 20-50mh, you would make the port to fit into that range.

[/QUOTE] wth is mh? i think he meant Hz. Anyways...I think you should really consider hiring a professional... it wont cost more than 100 bucks to have it professionally built to specs.

Wow ice and degg, not all of us were born knowing everything. Some of us have to learnSome fear the Abyss... Other, chase it into the DEPTHS !!!

haha talk about learning.... go check out my post. Im learning how to build a fiberglass dash right now. All the help I am getting is from this site. I also have other forum posts on here of other things I have built. Trust me, I have spent many hours and thousands of dollars learning from the school of hardknocks. I was being serious in my post too. I always try it myself and if I cant get it I ask a friend or someone on here how to do. You will see that Biggi and I have had many convo's about glassing. I think trial and error is the best way to learn man!! just dive into it!Deeg money

"If you cant be good, be good at it"

Everything takes time to learn.... I meant to recommend thinking that this was your "only" time wanting to make a box to specs. If its a "career" choice than by all means attempt away. Fabricating a custom box can literally make or break a sub! I've heard no-name speaker in a proper enclosure blow away some Orion HCCAs in a prefab box. So again if you are here to learn, then ask away.... if its just a one time project, I suggest u spend the extra cash and pay a pro. BTW, I have actually had customers asked what is in my signature. LOL. Also the occasional: "My friend TOLD me he bought this from you, and it stopped working can I get warranty?"