slip415

hey all

i was reading some of the recent posts and blue LEDz talked about some speakers working better in sealed enclosures than ported or vented boxes.

so i'm wondering what's the best subwoofer for a vent box? right now i have one tuned to 30hz i think?! i bought it from a friend who used to own a shop and swears by vent boxes.

i'm thinking about buying a jl 10w3, but i'm open to suggestions. thanks!

walight01

its not cheaper b/c you already have a box. heres the lowdown. ported(vented) boxes are used for SPL(sound pressure level) apps. vented boxs require LESS powerpower to opperate at normal playing levels and can usually drop lower b/c there isn't the resistance of the sealed box. but b/c of the lack of resistance, you need to have a "subsonic" filter on your amp. this will allow you to choose a freq. that when hit your amp won't play until the freq goes above it. this will save your sub time and time again. if a sub drops too fast and too low it will break. now you need to look for subs that can drop to around 20hz (+- 2bd) for a vented box. if the sub won't go below like 28 or 30. then it needs to be in a sealed box. sealed boxs are used for sq(sound quality) apps. b/c ported boxes reallly slam at it tuned freq, it doesn't sound that great the rest of the freq band. now since your box is around 30hz, it will still sound good b/c the peak level is so low. but also you need to ask the guy you bought it from what sub the box was designed for. b/c the box needs to be designed around a sub, not a sub around a box. the wrong box will make or break a sub. JL makes good subs, but if you are goning to run a w3, i would recommend a sealed box.

also caps don't help in volume, they are just a band aide for fixing dimming lights, but you could just rewire part of your car to fix that....caps are just show items. granted i will probably use one in my car for the "just in case" bit, but it will be more for show. test have shown no SPL increase with a cap.

MisterT

Well said and JL's warranty is up to a year if the dealership installs the sub in the box (even if you buy your own prefab box). JL is really particular when it comes to their subwoofers. JL will rebuild their subs after the warranty expires, but I hear from an owner of a W7 that it costs almost as much as a new one to be rebuilt. What kind of power do you have to push the subs with? Personally, I have always preferred sealed over ported, but there are some good sounding subs in ported enclosures when done right. If you don't have a whole heck of a lot of power a ported box sounds better. My home subwoofer is a Definitive Technology 12" sub in a ported box, and it kicks ***! It is totally up to you. Also on EDesigns website www.edesignaudio.com they have recommended boxes for sealed and ported boxes that work well with their subs. They are not difficult to build neither. I bought my box prefab because it was to work for my SPL12s and I got it fairly cheap.


MisterT

slip415

thanks for the replies guys. i finally checked out their site, and their prices seem very reasonable and their products look like quality. i dont know why i had a hard timee searching for them using google. "edesigns" vs. "edesignsaudio" makes a difference.

i guess i wanted a JL because it's a known name. but thanks to everyone's knowledge of jl's warranty...crap. that has changed my mind. i, like alot of people here am a DIY'er.

for your info, i'm only running a RF punch 250a2, so i more or less get 250Wrms to my sub. the vent box is loaded with an old 10" pioneer with 125Wrms. i honestly say that i've run it at 3/4 volume and it never gave out. the box bumps like i have a 12 or two 10s in there. i likes.

an edesigns k series 12 seems like a good deal. i plan on building my own vent box with the help of my friend, so i can build around the next sub that i get. hey blue ledz? you use a program to design your boxes, right? is it on cnet.com? haha i'd like to tinker with my box designs too.

once again thanks for your input guys.

hihoslva

Any truly reputable subwoofer company will be able to give you some good info on box design.

Granted, you might want to change certain parameters, like tuning, port size/area, enclosure volume, etc. However good companies like JL, Adire, and e-designs do extensive research in order to be able to help you with enclosure design.

I'd suggest dashing off an email or giving them a call. They should be able to give you a solid starting point to building your enclosure, and may even be able to help you tailor it to your own personal tastes.

I prefer sealed enclosures for the ease of building them. Just get the airspace close to recommended, and bump away. But there are plenty of good reasons for a ported box, and the design philosophy has changed so much in recent years. Used to be, sealed was for good sound, while ported was for monster bass. But a properly built and tuned enclosure can easily sound as good and punchy as a sealed enclosure, while having more output with less power. It's just not as easy to accomplish.

~HH

guitargod

Don't listen to BLue he is a dick.

Walight01 knows what he is talking about.

hihoslva

Wow - where did this feud start? I think I missed something somewhere....

~HH

hihoslva

N/M - I found the thread that is source of the hostility.

Carry on.

~HH

guitargod

You show a pic of a women with big ****. Is that something you wish for. And is that someone beating the **** out of you. Probably me.

hihoslva

Keep up the bullshit, gg - you'll get yourself banned from this forum, on the recommendation of several members.

Our objective here is not to blindly attack people. If that is your goal, you'll get the boot.

The moderators here don't stand for crap like this for long. If you continue to hijack threads just to bash those participating, you won't last long here.

Kindly knock it off, or just go away altogether. Either way, the goal is to end the bullshit. How that happens is up to you.

~HH

Bruce95fmla

hello guitargod ...
please do us a favor on protegeclub.com and tone it down a bit. I am a moderator . I am also not bashing on you in anyway. I am merely asking you to not openly attack other members as they won't do this to you. We are all mature adults here on protegeclub.com and peace is something to be promoted.

However understand that this is your 1st WARNING..

thank you for your cooperation
Bruce

MisterT

Don't be knockin' on those knockers guitargod! I like seeing them every day when coming to this sight Serious though, tone it down dude. We all are here because we all have something in common which is car audio, not bashing people for whatever reason. Like Rodney King said, "Can't we all get along?!"

MisterT

Bruce95fmla

lets just drop the subject, I don't want to have to close this topic for getting off-topic
Bruce

walight01

umm...........boobbies took you long enough bruce

Bruce95fmla

I come into car audio , every once in a while , or a surf through some of the posts .. It's hard for me to post in the responses in the audio , because of concentrating on my turbo and motor swap . But I do read some of the posts that interests me, just to see what's popping and what's the latests ideas. But when an ongoing argument gets out of hand , it doesn't hurt to bring it to my attention guys ...
Although this rarely happens in car audio .. people tend to get along ... but anyway back on topic to the mans question... about subwoofers for vent boxes
Bruce