NorCal Jeep
Junior Member
Hello All,
Brand new to this forum and kind of getting into car audio out of necessity. I've been reading through pages upon pages of car audio basics on Crutchfield and various forums so I can construct a decent system for my old 1985 Jeep CJ7. I have a physics background in college so I know a decent amount about circuit design and such.
As of now, I have the mostly stock set up that the old jeeps came with - two 5.25 inch speakers (cheap aftermarkets replaced the busted stockers) in the sheet metal dash with no sort of enclosure. My plan is to mount two 6.5's on the roll bar in PVC end caps with an MDF ring sealed into them (basically a DIY boat tower speaker), two 6x9's between the front and rear seats, and two 12's behind the back seat.
I already have the two 12's from my first car, bought a sheet of MDF from Home Depot, and just got all of the PVC speaker materials. Here is my design for the 12's:
View attachment 26553693View attachment 26553694
It will be 30 inches long with a divider in the middle, and downfiring subs. This design yields 1,672 cubic inches of airspace for each sub minus the space taken up by the speakers themselves. I feel confident with the dimensions, so one of my question is: is there a better way to cut all of the pieces of MDF (especially the angled pieces) or does this set up look good?
I am designing the box to be downfiring, so my second question is whether I should use rubber posts screwed into the box to raise it off the floor, or two strips of MDF on either side of the box, and how high off the body of the jeep should I have it.
I have 5/8" MDF, wood glue, a nail gun, dry wall screws, circular saw, drill, and silicone seam sealer to construct it with. Any advice is much appreciated.
Brand new to this forum and kind of getting into car audio out of necessity. I've been reading through pages upon pages of car audio basics on Crutchfield and various forums so I can construct a decent system for my old 1985 Jeep CJ7. I have a physics background in college so I know a decent amount about circuit design and such.
As of now, I have the mostly stock set up that the old jeeps came with - two 5.25 inch speakers (cheap aftermarkets replaced the busted stockers) in the sheet metal dash with no sort of enclosure. My plan is to mount two 6.5's on the roll bar in PVC end caps with an MDF ring sealed into them (basically a DIY boat tower speaker), two 6x9's between the front and rear seats, and two 12's behind the back seat.
I already have the two 12's from my first car, bought a sheet of MDF from Home Depot, and just got all of the PVC speaker materials. Here is my design for the 12's:
View attachment 26553693View attachment 26553694
It will be 30 inches long with a divider in the middle, and downfiring subs. This design yields 1,672 cubic inches of airspace for each sub minus the space taken up by the speakers themselves. I feel confident with the dimensions, so one of my question is: is there a better way to cut all of the pieces of MDF (especially the angled pieces) or does this set up look good?
I am designing the box to be downfiring, so my second question is whether I should use rubber posts screwed into the box to raise it off the floor, or two strips of MDF on either side of the box, and how high off the body of the jeep should I have it.
I have 5/8" MDF, wood glue, a nail gun, dry wall screws, circular saw, drill, and silicone seam sealer to construct it with. Any advice is much appreciated.
