Help w/sub set up

[Pastorius_Blue]

Just happened upon another lonely ranger???
its in pretty good shape!
was curious have some audio stuff laying around for other projects, that haven't been finished (may that other dear truck rest in peace)
Having trouble finding a sub box to fit an extended cab, don't have to have access to jump seats, though don't wanna loose all of back cab space?
its a 93 ext cab, if anyone can help that would be cool!

 

[Lil-Pony]

if your good with fiber glass you can make box to fit inside where the jumper sets go. the boxs wont be big enough for 12s but 8s and maybe 10" will work just fine.

 

[RonD]

Sub woofer enclosure design is an art, not just a box.
You do get lower frequencies with just a larger speaker cone, but end up canceling alot of those out with a bad enclosure, you also need a crossover to prevent the larger speaker cone from trying to reproduce higher frequencies, which it will be miserable at.
Also need an amplifier.

If you don't want to spend the time building a box, look at off the shelf powered subs.
Bazooka makes some 8" models that produce the lower frequencies and don't take up alot of space.

Or swing by a car audio place with a tape measure and measure some of their sub boxes so you can duplicate it.
But you still need the crossover and amp.

 

[Surrey]

If Im not mistaken, you can wire any (or at least most) amps in cross-over. I have had a few two-channel amps and they all could be. Just had to hook up your + to one channel and - to the other.

What might be a good idea is to build a single sub box for behind the passenger seat. That way you still have floor-to-ceiling storage space behind the drivers seat.

Ebay has plenty of examples of all sorts of styles...
http://www.ebay.ca/itm/MTX-ThunderF...ker_Sub_Enclosures&hash=item19b7922b9c&_uhb=1

http://www.ebay.ca/itm/CUSTOM-TRUCK...Enclosures&hash=item4858690b0c&vxp=mtr&_uhb=1

 

[Pastorius_Blue]

sub box

I do realize building a sub box isn't simply a square or rectangular setup, just have built them with more room to work with in my younger days..
just curious as to if anyone had any advice how to get best sound quality etc?
cheers

 

[skoal777]

most subs have the amount of space needed to get the best sound quality out of them packed in with the sub. when picking an amp make sure that the RMS rating that the sub and amp have are as close as you can get it. the peak watts that a sub can handle is not what your amp should always run you will rish blowing out the sub. also in your box you should have some type of batting so that the lows sound crisp. thats most of the advise i can give you. just remember you can get real creative with the shape of the box as long as it is the right size overall

 

[4x4fun]

As far as fitment. Some times building a false floor to sit abox on is the good idea. Iv put a15 In the back and had a set left over. Fiber glazing is not as hard as it sounds. But the if your going to make a box. Check the specs if you have to push it on the small end. Fill the box with synthic poly fill. It will help fill out the sound. Most pre made boxes come with some in them any way.

 

[Lil-Pony]

If you want to get real fancy use a box program that utilizes the subs specs and desplays a db loss vs hz graph for XXX sized box with or with out XXX size port.
I use winISD, it's free and works really good. My house sub beats 1000$ brand name subs, all because of proper design and execution, and I've only spent 300$ on it. Also what the factory say is best is not always ideal.


Sent from my iPad using Tapatalk

 

[4x4fun]

Also what the factory say is best is not always ideal Tapatalk

Sorry if I begin to split hairs. But what the factory says about the speaker is pretty dead on. They make them. Now don't go believing because it's all ready in a box that it's matched perfectly. That can get you every time. But your right, do the math! And think about what your doing. I know space is an issue but go listen to some different boxes. Just because it's tuned and ported to perfection. Doesn't mean you like what it sounds like

 

[Lil-Pony]

Sorry if I begin to split hairs. But what the factory says about the speaker is pretty dead on. They make them. Now don't go believing because it's all ready in a box that it's matched perfectly. That can get you every time. But your right, do the math! And think about what your doing. I know space is an issue but go listen to some different boxes. Just because it's tuned and ported to perfection. Doesn't mean you like what it sounds like

You split the hair but ill let that slide. Port tuning will changing the dynamics of a sub drastically, with that program i mentioned you want to get the flattest response curve possible and ive entered the box parameters that the companies have provided with the speaker specs and it normally leads to a curve with a +3db peak around 50hz 0.0
I would stay away from any prebuilt box with a tuning frequency above 45. 50 is pushing it. The high tuning frequency does make them louder which is what the company is after, but that loudness come at the cost of the sub falling flat on its face around 30hz. The love making frequency. This is why my cheap home setup smokes 1000$ subs. It was port matched to te specs of the sub. But its in a 3.5 cu.ft. Box and is tuned at 32hz. While these expensive subs are in like 1.75 to 1.00 cu.ft. boxes...