Budget SPL

[FullThrottle7 10+ year member]

Ok, thanks a lot. I have another question, however. What kind of dimensions could I use to achieve a box like this? I tried to attach a picture of the idea that I'm getting, but it didn't work, so I just tried to describe it below. I think after reading your message again, I might have screwed up because I didn't account for the driver displacement and port volume in the total box volume. What would the dimensions on a box like this need to be in order to achieve the 1.75 cu. ft. volume with 34hz tuning?

Base - 15.5"

Height - 15"

Depth - 13"

Total volume = 1.75 cu. ft. (I think)

Sub goes in 15.5" X 15" wall

4" port in top of box (I need to know proper length)

Would the 4" port be better to put in the top of the box or in the same face as the one the driver is placed in? Also, how deep would the 4" port need to be to get proper tuning? If you could modify these dimensions to get the 1.75 cu. ft. @ 34hz, I would greatly appreciate it. Thanks again for all of your help Jmac.

 

[FullThrottle7 10+ year member]

Well, I haven't actually bought the car that this will be going in yet, so I can't give any definate dimensions for sure. I'm pretty sure it will be a camaro or mustang, so it will be a hatchback of sorts. Lets go with 16 inch height, 25 inch width, and 20 inch depth; that should give a number of possible combinations. I wanted to go with a slot port because I thought it would be easier to build, but wasn't exactly sure on the dimensions. When you said 17 cu. inches of port space, I figured that would be pretty much a 1" slot the same height as my box that would extend about 13.6 inches into the box (15 in. height x 1 inch diameter x 13.6 inch depth = 17 cu. in. of port space) into the box. If I could just put a slot port extending from the front of the box back into the box, it would make it really easy to build. Two round ports would be easy, too, however. Let me know what you think would be the easiest port configuration and also some dimensions for the rest of the box. Thanks again for all the help.