Yes
that is right. The type of box you HAVE to use because of the application is a bandpass. What a bandpass is, is one sub in two enclosures . The rear enclosure is sealed and the front is ported. The only sound you hear is from the port ,plug the port and no sound. And the port has to be cut to a specific length but there is no rule that says the port has to be inside the box. You just have to account for the volume of space that the port itself would have taken up inside the box.
tonka
Jay

 

Sooo I build a tow compartment box with sub in Rear(bottom) firing up into the other compartment and then a port from there into the truck?? I have never built a speaker enclosure before and just want to make sure I get it right the first time.....I know I will have to glue and screw everything to eliminate any rattles and so forth I have now prob with that just the layout of the box......I think a 10 will give me plenty of Bass for my listening taste
as I don't want to be heard coming a half mile away.....( Old Fart ) (with a good ear though)
What is the best configuration for the volume of box i.e. short and wide or just wide enough for sub or what is best. I know the size of the enclosure matters but not sure about shape. Can you assist me in design of shape of box with volume estimates and sizing on port???? I think I will have plenty of room underneath and if not I will be doing custom storage in rear but don't want something that will be blocked when loaded or succeptible to damage from load......(stuff falling in port....etc. I can position port in safe place and screen or somehow protect the entrance. I know this is very different and that is one of the reasons why I like it. I wonder if this will use the body of truck as resonator as well and if this is good or bad??? Thanks for all your help!!!!!
Chris
1978 F150 SC 351 C6 $1000
Soon to be Bronc owner!!
1969 Buick LeSabre 400
1941 Farmall "A"

 

Hi Chris
We will want to keep the box as shallow as possible and use whatever width you have accessable and that will define the length. You will need to choose the sub before we can come up with any real dimensions because each sub is different. Once you have done that we can round up the info I will need. Then I will do a drawing and you can compare that to the room you actually have and well make any changes needed . Keep in mind that chances are the more you can spend on the sub the smaller the box dimensions will be and chances are pretty good the happier you will be with the final product.I love a challenge.
Jay

 

COOL!!!!!!!

1978 F150 SC 351 C6 $1000
Soon to be Bronc owner!!
1969 Buick LeSabre 400
1941 Farmall "A"

 

I have a '70 F-250 with a tank behind the seat also. What I have thought of is a long narrow box aprox. 8in tall and as wide as the seat. I was thinking if it does not fit, I could unbolt the seat and mount it on 1-2in blocks to allow it to fit.

 

You have no room behind the seats you say. That is not a problem. I have a friend with a 72 Ford. We built a custom box a but 2 12's in the front, the amp for them is under the drivers side of the front seat,and then we have 2 6x9's in the mentioned 6x9 boxes behind the seat and a set of MB quart 6.5's in the doors. it only took us 2 days to do and we did it all ourselves. also i would have to agree and say that CD changers are not quite as reliable as they should be and it would be better if you installed a cd player. It is really easy and can be done by yourself. E-mail me for a step by step guide of the CD player installation.

 

Hey there are two ways about this.the easy way might be to take out the seat then build a box to fit the floor .When the box is Done sit the box where the seat was then go under your truck find the square bolts (holes were the bolts went) then mark them. drill the holes in the box then bolt the box to the floor.do the same for the seat.the bax should be no taller than 7" .If you need more space you'll need to counter sink the seat into the box.IMPORTANT be sure to use grills.the other is a little eaysier but requires larger monifications.take your truck to a experanced welderhave him cutout the floorboard under the seat around the square bolts.then weld a metal box to seal the inside then drop your box inside the metal one and there you go.He may charge between $150-$250 parts labor,tax and all.Now the CD changer put it in your glove box thats where i put mine you'll probly have to cut or bend some stuff around.If you need help or qustions E-mail me at purtex@wnonline.net and we'll see what we can do. Brandon