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View Full Version : Talk me into or out of going sealed



stratusrt01
02-16-2006, 10:13 PM
My box that is in my car right now is basically a ground pounder setup, and while I liked it at first, I realize that I don't listen to low bass notes all the time, and the fact is that it really doesn't slam hard, it just hits unbelievably low. This setup is an MTX 9521-44 powered by a JBL BP1200.1 in a 4 cubic ft. box ported to 35hz.

I'm picking up a couple sheets of MDF tomorrow to start on my new box and amp racks, but I'm still undecided about whether to build a smaller ported box or going sealed this time.

I listen to a big mixture of music, from rap, heavy metal, classic rock, 80's rock, etc. etc.

Should I build a 2.5 cubic ft box ported to 32hz, or go ahead and build a sealed box?

Ayrton
02-16-2006, 10:15 PM
Sealed is for those who enjoy MUSIC, ported is for bass heads.

I vote sealed.

helotaxi
02-16-2006, 11:17 PM
Sealed is for those who enjoy MUSIC, ported is for bass heads.

I vote sealed.
Funny, my XXX is in a ported box and I am the one of the farthest things from a basshead. The SQ is excellent. It is all going to depend on the sub.

skadude016
02-16-2006, 11:19 PM
if you really want a musical box tune it to 28hz

stratusrt01
02-16-2006, 11:36 PM
So, is the consensus that I should build a smaller ported box, and tune it lower? I'm starting tomorrow morning, so any other opinions are appreciated.

rocky 59
02-16-2006, 11:38 PM
seald wtf

JimJ
02-16-2006, 11:41 PM
Sealed is for those who enjoy MUSIC, ported is for bass heads.

I vote sealed.

Errrr...no.

lubetek
02-17-2006, 01:20 AM
sealed if you want your sub to blend in with your front stage completely.

ported if you want your bass to bump over your front stage.

I prefer sealed.

SBLAZER
02-17-2006, 01:26 AM
juss tune it low, is that a 12 in 4cu? try for a smaller box also, maybe around 2.5-3cu

docutech
02-17-2006, 01:30 AM
Sealed is for those who enjoy MUSIC, ported is for bass heads.

I vote sealed.
:word:

Sealed FTW.

lubetek
02-17-2006, 01:34 AM
I agree 100% with those guys. Sealed is for those who love listening to music and ported is for those that like the bump.

I'm sure its possible to get a good spl/sq ported setup but I've never heard one.

theCybe
02-17-2006, 09:45 AM
Port plugs for the win?

theCybe
02-17-2006, 01:18 PM
Good point - many HT's are ported, and the highest-end stuff is usually a horn, I've noticed.

pjm2211
02-17-2006, 01:20 PM
sealed is tight, crisp, and punchy.....;)

theCybe
02-17-2006, 01:27 PM
I like a richer, less surgical sound.

I had an RL-p sealed, and the resolution was incredible, but it lacked the richness I found in an RE SE 15, ported @ 30ish.

Slammed
02-17-2006, 01:31 PM
sealed if you want your sub to blend in with your front stage completely.

ported if you want your bass to bump over your front stage.

I prefer sealed.


do you have experience with low tuned well designed vented enclosures?

Slammed
02-17-2006, 01:32 PM
Sealed is for those who enjoy MUSIC, ported is for bass heads.

I vote sealed.


do you have experience with low tuned well designed vented enclosures?

JimJ
02-17-2006, 01:37 PM
In some regard, it doesn't matter if he has experiences with them or not - he could concievably find that he thinks even a low tuned bass reflex enclosure sounds like ***, and that would be fine.

The problem is making a gross generalization that doesn't apply to everyone...

jojosdad
02-17-2006, 01:40 PM
With your wide range of musical tastes....sealed without question.

Slammed
02-17-2006, 01:55 PM
In some regard, it doesn't matter if he has experiences with them or not - he could concievably find that he thinks even a low tuned bass reflex enclosure sounds like ***, and that would be fine.

The problem is making a gross generalization that doesn't apply to everyone...

true, but many come to conclusions without experience


Back when I started this hobby, I use to think that ported enclosures sounded like shyt because of what people said.

Generalizations like these discourage others from the advantages of a vented enclosure.

Slammed
02-17-2006, 01:56 PM
If space is an issue.....sealed.

If one wants to save time and money......sealed

Ayrton
02-17-2006, 02:02 PM
Yes I admit is was a generalization and a bit of a cheap shot at the bass kids, but in most installs a ported box is SPL and generally not for SQ.

lebomb
02-17-2006, 03:01 PM
Sealed is for those who enjoy MUSIC, ported is for bass heads.

I vote sealed.


X2.......went sealed last week. I listened to a few Jazz CDs and R&B CDs last night.......sounds so much better. No overhanging boom, just clean bass. :cool:

stratusrt01
02-17-2006, 03:07 PM
Screw it, I've got enough wood to build both, I'm going to try both and see which I like better. I figure a 1.5 cubic ft. sealed and a 2.25 cubic ft ported, I just can't decide what frequency to port it to, I was thinking about 28-30 any suggestions?

lebomb
02-17-2006, 03:11 PM
Screw it, I've got enough wood to build both, I'm going to try both and see which I like better. I figure a 1.5 cubic ft. sealed and a 2.25 cubic ft ported, I just can't decide what frequency to port it to, I was thinking about 28-30 any suggestions?

If you have the extra materials and the time.......that is a great idea. Then there is no second guessing. :)

stratusrt01
02-17-2006, 03:15 PM
Luckily, my work schedule is very nice for getting things like this done, I work 25 days straight then get 2 weeks off. I was out trying to adjust my PEQ a little more and play with the crossover to see if I could get a little more midbass out of my current setup, and came to the conclusion that it's just not going to happen, the box is just too big to produce any kind of midbass.

JimJ
02-17-2006, 03:19 PM
You don't want your subs producing midbass anyway...

stratusrt01
02-17-2006, 07:47 PM
Should I make the ported box 2.5@28hz???

bimma85
02-17-2006, 07:53 PM
If one wants to save money, then ported is a better option, IMO ...
x2, ya spend maybe $5-10 more on wood and can get quite a bit more output depending on the boxes you are comparing.

HotCarl
02-17-2006, 08:05 PM
2.5 - 3 cubes @ 32 hz is what i would do for a 9500



for some reason i really like 9500's.

stratusrt01
02-17-2006, 08:17 PM
To be honest, I love the box they are in, however it's quite a bit bigger than I would like, and has pretty much no output above 50hz. It sure does hit the low notes nicely though. It's also too big for my tastes in the trunk. The way the opening for the trunk is, it had to be built to where it sticks out too much, and there's really nothing I can do to make it look better. I made some trim panels for it, but it still sticks out from them quite a bit. I have 10 yards of vinyl waiting to redo the entire trunk when I decide which box I like, so I'm trying to get it right so that I can actually get it looking great.

HotCarl
02-17-2006, 08:20 PM
id lookin into doing some sort of other design

maybe a rear horn, or Snailshell or some type of modified TL.


ive had a snailshell and a rearhorn. both had wild SQ and SPL.

stratusrt01
02-17-2006, 08:20 PM
Here's a pic of the opening, and how much the 4 cubic ft. box sticks out:

http://img51.imageshack.us/img51/829/rearopening8ub.jpg

bimma85
02-17-2006, 08:21 PM
To be honest, I love the box they are in, however it's quite a bit bigger than I would like, and has pretty much no output above 50hz. It sure does hit the low notes nicely though. It's also too big for my tastes in the trunk. The way the opening for the trunk is, it had to be built to where it sticks out too much, and there's really nothing I can do to make it look better. I made some trim panels for it, but it still sticks out from them quite a bit. I have 10 yards of vinyl waiting to redo the entire trunk when I decide which box I like, so I'm trying to get it right so that I can actually get it looking great.
ya can't have your cake and eat it too, or whatever the saying is :crap:

Is that box 4cubes net or gross? how deep is it?
I was gonna say 4 cubes sounds pretty big for a single 12, but that doesnt look like 4 cubes net.

stratusrt01
02-17-2006, 08:22 PM
id lookin into doing some sort of other design

maybe a rear horn, or Snailshell or some type of modified TL.


ive had a snailshell and a rearhorn. both had wild SQ and SPL.

I would, but my trunk opening makes it hard, plus I'm not that great at designing stuff. If I could get ahold of some plans that would fit in my car, I'd be down to build one.

HotCarl
02-17-2006, 08:39 PM
I would, but my trunk opening makes it hard, plus I'm not that great at designing stuff. If I could get ahold of some plans that would fit in my car, I'd be down to build one.



check out ToxicDesigns.

crazy enclosures.

Pete does the design for you, then you donate him a few dollars.

he builds it to your exact dimensions and stuff.


ive had a few boxes done by him...they all were exceptional.

stratusrt01
02-17-2006, 08:54 PM
ya can't have your cake and eat it too, or whatever the saying is :crap:

Is that box 4cubes net or gross? how deep is it?
I was gonna say 4 cubes sounds pretty big for a single 12, but that doesnt look like 4 cubes net.

it's actually 3.73 net, the box is pretty deep, it's deeper than it looks in the picture. It's actually 26" deep.