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Discussion Starter · #1 ·
Hey, so I have a question for you all. Currently I have an entry level pioneer 12, in a sealed enclosure. I am driving it with a briged 450 watt amp.

The enclosure is partical board and starting to come apart. I want to make a new one but I wanted some advice.

Which enclosure do you think would be the best for someone who listens to rock music. I am thinking about building a ported enclosure and using some dead space in the side of my trunk.

would it be better to use a sealed enclosure, or a ported box. The trunk is sealed really well, and there is dynamat layed down.

my current box sounds ok, but there are times when it sounds flat or tinny. I dont know if its cause the sub is hitting to quick, or if its just a bad box. it sounds pretty good when I listen to R&B.

also the trunk deck is vented from the factory into the car itself. any help you could provide would be great. I am just getting into this whole thing so I am pretty inexperienced.
 

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You will probably want a sealed box for rock music because sealed gives you more of a punch then ported.It wouldn't matter either way. You could still make a ported box and if tuned right could sound awesome with the right tuning frequency.

I would also suggest not using particle board next time. Doesn't seem to be very strong.
 

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I agree with BaaH268 - you will probably prefer a sealed enclosure to a ported enclosure unless you are seeking high SPL. I suggest 3/4" mdf for the enclosure. Glue it and screw it!
 

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You will probably want a sealed box for rock music because sealed gives you more of a punch then ported.It wouldn't matter either way. You could still make a ported box and if tuned right could sound awesome with the right tuning frequency.

I would also suggest not using particle board next time. Doesn't seem to be very strong.
I agree with BaaH268 - you will probably prefer a sealed enclosure to a ported enclosure unless you are seeking high SPL. I suggest 3/4" mdf for the enclosure. Glue it and screw it!
You guys are most certainly new here.

This is just not the case and a PROPERLY designed vented enclosure will actually kick ass with rock music. there have been MANY sealed/vented discussions, I recommend you search around for them and make your decision based on that versus the street knowledge that "sealed enclosures are tighter"
 

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I listen to a lot of older AC/DC and it absolutely slams on vented boxes. Especially You Shook Me All Night Long, Thunderstruck, and Whole Lotta Rosie
 

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I listen to a lot of older AC/DC and it absolutely slams on vented boxes. Especially You Shook Me All Night Long, Thunderstruck, and Whole Lotta Rosie
Agreed. I have listened to many, many vented systems and when properly matched and tuned they are tight, deep and musical. I use sealed enclosures simply due to the smaller space req.
 

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Thats my bad. I said a ported box can do just as good as sealed if done right I just didn't go into depth about it. And yes I don't have much experience with ported boxes so I am still partial to sealed.
 

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Thats my bad. I said a ported box can do just as good as sealed if done right I just didn't go into depth about it. And yes I don't have much experience with ported boxes so I am still partial to sealed.
We will change you :D Just wait:laugh:
 

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We will change you :D Just wait:laugh:
That is the truth... just bought my first DIYMA R12 this week... Can't wait to get it installed. But still much more for grasshoppas like me to learn...
 

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Discussion Starter · #11 ·
Thanks guys I appreciate it. my current box came from my brother in-law. I hate particle board too. however if I wait long enough, it looks like my sealed box might port itself. of course it looks like I have been chipping wood in my trunk. I have heard some beautiful ported enclosures, thats what makes me lean towards that.

another question, I get some distortion on my mids in my rear deck, I am thinking about building some fiberglass cups for them to set in, to help protect them from all the air moving in the trunk space. or do you think that I should just pickup some better mids?
 

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I'm going to be building a sealed enclosure for two 12's this weekend. I am currently using a store bought ported band pass enclosure with one 12 and I hate it. I realize that part of that hate is because it's a pre-made enclosure that designed for "a" 12 and not specific to "my" 12. I just dont like the way it sounds for most (not all) of the music I play. I'm going to make the sealed enclosure and run it for a while and if the results aren't where I want them, then I'll make a vented enclosure and see what that does.
 

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Agreed. I have listened to many, many vented systems and when properly matched and tuned they are tight, deep and musical. I use sealed enclosures simply due to the smaller space req.
I love the fact that people are finally starting to realize that when done right ported/vented system will rock the hell out of sealed systems in both sq and spl. I will agree that most ported systems that people are running do sound sloppy as hell but that is mainly because they just get a prefab box and toss it in the trunk :( . So make sure you get the design right because ported box are very sensitive to inner volume, port size, ect. If you want to build the box yourself I am sure there are plenty of people that will help you out with what materials to go with ( I don't want to start the MDF birch debate), what tools you are going to need, and even help out with a design for it. Ask around, pretty much everyone on this forum know what they are talking about and are more than willing to help a fellow audio freak. My recommendation for your initial question, Build your own ported/vented box and have some fun trying something new.:)
 

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Bears repeating

I love the fact that people are finally starting to realize that when done right ported/vented system will rock the hell out of sealed systems in both sq and spl. I will agree that most ported systems that people are running do sound sloppy as hell but that is mainly because they just get a prefab box and toss it in the trunk :( . So make sure you get the design right because ported box are very sensitive to inner volume, port size, ect. If you want to build the box yourself I am sure there are plenty of people that will help you out with what materials to go with ( I don't want to start the MDF birch debate), what tools you are going to need, and even help out with a design for it. Ask around, pretty much everyone on this forum know what they are talking about and are more than willing to help a fellow audio freak. My recommendation for your initial question, Build your own ported/vented box and have some fun trying something new.:)
 

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I love the fact that people are finally starting to realize that when done right ported/vented system will rock the hell out of sealed systems in both sq and spl. I will agree that most ported systems that people are running do sound sloppy as hell but that is mainly because they just get a prefab box and toss it in the trunk :( . So make sure you get the design right because ported box are very sensitive to inner volume, port size, ect. If you want to build the box yourself I am sure there are plenty of people that will help you out with what materials to go with ( I don't want to start the MDF birch debate), what tools you are going to need, and even help out with a design for it. Ask around, pretty much everyone on this forum know what they are talking about and are more than willing to help a fellow audio freak. My recommendation for your initial question, Build your own ported/vented box and have some fun trying something new.:)


I just havent heard enough from vented enclosures. I've not ever really been "into" car audio to consider myself in any way "in the know" about much of it. I do know that I hate my current set up. Even before my Pioneer amp crapped out and I had to go to this hand me down chump thing that I have now I didnt care for the way it sounded. Rather, it didnt sound how I felt like it should have. The punch on rock music just isnt there like I would prefer it.

I do want to built a good vented enclosure for my two 12's (that are on the way) in the next few months and see if I like it better than the sealed one I'm about to be building.
I have to find out all the need to knows for making a vented one though. There's more to it than a sealed setup. And I want to do it myself because that's more than half the fun.
 

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Vented boxes will always take a couple of tries to get it right...not just because of you car but to find what sounds good to you. But when the are dialed in right they have advantages.
 

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Thanks guys I appreciate it. my current box came from my brother in-law. I hate particle board too. however if I wait long enough, it looks like my sealed box might port itself. of course it looks like I have been chipping wood in my trunk. I have heard some beautiful ported enclosures, thats what makes me lean towards that.

another question, I get some distortion on my mids in my rear deck, I am thinking about building some fiberglass cups for them to set in, to help protect them from all the air moving in the trunk space. or do you think that I should just pickup some better mids?
Do a search for VBA (violent bass air).;)



















































J/K:p:p:p:p

Well you can search for it if you need to kill some time!
 

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Use a vented/ported enclosure. Use WinISD software (its free) to determine the size of your enclosure and the size of the port. A well designed ported enclosure will give you more low end extension and louder bass output for the same amount of power. It is a myth that sealed enclosures are "accurate" and vented enclosures are only meant for SPL. The main thing is that you have the box properly designed and built.

I have a pair of Kef 103/4 speakers in my home. They are ported speakers. These speakers have been extensively reviewed and they are considered very acurate speakers.

In terms of particle board/MDF, you don't mention how thick it is and how it was built. Use 3/8" and use wood glue on all the joints. Use screws to hold things together (mainly to allow the glue to dry). Use plenty of glue and you shouldn't have any problems. e.g. Run a bead of glue around each of the joints inside the enclosure.

Have a look at Chad's thread on his ported Dayton 10" HO.
 

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ahhh i think you could go with something like a Magnum. very punchy. Rock dosent bear the long blaring bass notes like rap so in my application i have an avalanche. Love it have 2 actually one is still in the box.
 

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Is 3/8" MDF strong enough? I've never built a box out of anything less than 3/4" but I need all the cubic inches and mounting depth I can get out of my new truck install. I was thinking 1/2" but if 3/8" MDF will do it, I will reconsider. Thanks.

Wait - this new box will most likely be a ported, so there's less pressure compared to sealed, right? This is for a Dayton HO 10" powered by a JL Audio 500/1. I've got plenty of room under the rear bench for a long port, but only about 5-5.5" of depth and thinner material will help.
 
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