need advice !!

[kana12]

i have a 06 22v.. have wetsounds 3 some on the tower powered by a alpine pdx 4.150. gonna replace factory in botat speakers and amp with wetsonds speakers and power them with a jl 6450.. want to either go with jl w7 12 in sub or maybe 2 12 in kicker l7s.. but need to know weather to port the box or have a sealed box. the people that ii want to do the sub install say that they wont do a ported box because being in a boat would destroy the box i guess from moisture... help.. i want to ripple the water while sitting still

[NICKYPOO]

Personally, I like the sound of a sealed box. Nice, tight, clean bass. Ported boxes sound sloppy loose IMO and only hit really hard one one tone. Sealed boxes are smaller too. It's all personal preference.

I've never heard of a box deteriorating in a boat just because its ported.

I know people love their JL's and their kickers but, I absolutely love my 10" RE. More bass than I can use. It's mounted in a 1cu.ft. sealed MDF box filled with Polyfill.

[evil0ne]

Personally, I like the sound of a sealed box. Nice, tight, clean bass. Ported boxes sound sloppy loose IMO and only hit really hard one one tone. Sealed boxes are smaller too. It's all personal preference.

I've never heard of a box deteriorating in a boat just because its ported.

I know people love their JL's and their kickers but, I absolutely love my 10" RE. More bass than I can use. It's mounted in a 1cu.ft. sealed MDF box filled with Polyfill.

A lot of people will tell you that a properly build ported box will sound just as clean and tight as a sealed box with more output.

[westtx]

I had a sealed arc 12 pushed by an arc amp, dont remember the watt on the amp, but my ported xxx-12 pushed by the syn 1 absolutely hits harder and sound better than the sealed one. imho

[kana12]

any other opinions please ?

[da.bell]

I have a ported Treo 10" 1000 rms watt sub. That thing pounds!!!!!!!

I guess the installers are thinking that moisture would get into the back of the sub???

[Domsz06]

I have sealed and ported, my ported hits lots harder and cleaner. It was designed for my subs. Sealed are easier to make, so therefore people say sound better. I'm with da, and my ported hits lots harder. When it hits, it hurts my chest it's so loud and hard.

[kana12]

thats what i was thinking.. sealed my be a little better quality but this is in a boat.. i have 2 l7 12s in one of my trucks and its sealed for sound quality and have all kicker satilite componets to top it off but this is a boat. i think that a sealed box wouldnt realy load up any where and a ported would move more air and sound better. i had a shop tell me one time the only way to really get sound out of a boat is to port it.. ?

[da.bell]

Not to mention with a sealed box, the box is going to have to be bigger. You only have so much room in a boat.

[NICKYPOO]

Not to mention with a sealed box, the box is going to have to be bigger. You only have so much room in a boat.

I thought it was the other way around.

So far as construction easy and sound quality (i.e. "it was easier to build therefor it sounds better") is Sorry Sean. I'm a custom cabinet designer/builder. I'm not afraid of building boxes. I went with a sealed box based on sound quality. A friend liked mine so much, as soon as he heard it, he had me build one for his Kicker Solobaric and threw his big fancy ported box away and has been rocking it ever since. We both listen to all kinds of music, from 30's Swing to all out Bass. It has been my experience that ported boxes work better as long as you don't stray too far from what it was designed for. I've yet to hear a ported box that sounds as good through the entire spectrum of music as a sealed box. That's not to say it is impossible or even improbable, that is just my opinion.

Wait a sec. I do have some circa mid 70's Cerwin Vega home speakers in my garage with 15" subs that are ported. They sound fantastic. Truth be told though, they pretty much only play classic rock. They just don't build 'em like that anymore. I'm missing a fuse cap for one of them. Anyone, anyone...

[da.bell]

^^^ You are right... I have no clue what I am talking about at times..

http://www.crutchfield.com/S-PJY9PRo...nclosures.html

[NICKYPOO]

^^^ You are right... I have no clue what I am talking about at times..

http://www.crutchfield.com/S-PJY9PRo...nclosures.html

YES! Today is going to be a good day.

[philwsailz]

Most of the time ported boxes only get a bad reputation as a result of the ones that were not designed and/or built right. Crappy ported boxes sound, well, crappy...


* A properly designed ported box will usually be larger than a sealed box for the same woofer.
* A properly designed ported box will usually be noticeably louder than a sealed box for the same woofer.
* A properly designed and properly tuned ported box can have an extremely broad frequency response and can sound as good or better than a sealed box. Every concert PA you have ever heard uses ported boxes.
* Sealed boxes are easy to build; ported boxes are hard by comparison.



A properly built ported box will withstand the boat environment. It should not be made from MDF or particle board though:
Here are a few options:
* Use a 13-ply void-free plywood built with an exterior rated glue in the layup, (most 13-ply sheets are bonded with epoxy / resin type adhesive anyway, so don't worry too much) Use a waterproof glue like Franklin Tite-Bond II or that foamy, yet bad-a$$ stuff called Gorilla Glue with screws for your construction joints.
* Use a synthetic material like King Star-Board. Use 3M 5200 sealant/adhesive in the joints combined with pre-drilled screw holes to make for a box that will last forever. Just know that this is a very costly alternative to the 13-ply above.



If you want the ported box go for it. Just understand that you need to consider a properly designed enclosure:

* If you cheat on size and go too small, the enclosure can tune too high, resulting in one-note sound and poor power handling.
* If you shrink the port area and make the port really long to get the tuning right for that small box, the air velocity in the port will be too high, and it will sound BAD!!!
* As a result, if you have room and can build a great big box, you can get good low tuning and quiet airflow with a reasonably sized, (i.e. not too large) simple port.

A ported box will make your boat sound like a million bucks, but it requires planning and thought. If you and/or your stereo guys are not up for all the work and planning it takes to do it right, go sealed. If you end up just slapping something together and shoving a tube in it, you will be disappointed.

[majestic]

I have a Box in my under stereo storage compartment with 2 10" Jl audio 10w3's powered by Alpine PDX-5. The box is built with MDF and covered in resin. The problem is that I dont get enough sound without cracking the door. I need to install a port somewhere but havent givin it too much thought yet. When the door is open it pounds.

[da.bell]

I have a Box in my under stereo storage compartment with 2 10" Jl audio 10w3's powered by Alpine PDX-5. The box is built with MDF and covered in resin. The problem is that I dont get enough sound without cracking the door. I need to install a port somewhere but havent givin it too much thought yet. When the door is open it pounds.

something like this would be good.

http://www.wakeworld.com/MB/Discus/m...tml?1232400240