New to the form and novice audio geek.
I am looking to build my first ported subwoofer enclosure.
I am using a CompRT 10" from Kicker and either the KX 800.1 or CX600.1 (whichever will work best).
The enclosure I am trying to build will be 36" Wide X 42" Long x 4" Tall out of 3/4 MDF. Also, im adding a 1" X 11.5" riser ring that is flush mount at .4" to give the woofer some extra rise room for installation. The woofer will be firing upwards.
The kicker webpage says the CompRT 10" needs 1.25-1.75 cubic feet of volume to work effectively. The box without the ports and misc subtracted is at 2.02 cubic feet.
I figured out the box volumes at the12volt.com
I want my box to tuned at 33 Hertz. (I listen to Rock, Metal, and Rap)
I have calculated that two ports at 2.5" Tall X 4" Wide x 13.46" Long.
To calculate this length I used the Port Length Calculator site.
I figured the volume that these two ports take up inside of the box is .1388 cubic feet.
The woofer will take up roughly .13749 cubic feet.
And lastly I want to make a cut out along the wide edge the ports are exiting from at 10" X 9" (centered) so I will have a space to flush mount the amp. That should take up about .13021 cubic feet of space.
In total the entire box minus the three parts, I believe there will be 1.6136 cubic feet left inside the box for air flow. Within the woofers range of 1.25-1.75.
I am also going to add some poly-fill (less than a pound) to the box, as recommended on kickers webpage for a cleaner deep base. Box Building Hints | KICKER
My question for the forum is what do you think? Are my design for the ports going to work? Is 33 Hertz a good level to be at for the desired music type goal? Any other general tips and concerns?
This enclosure is going in the back of my jeep wrangler and is going to have my spare 35" tire over it with the woofer centered in the wheel.
The size of the box is the biggest I could go in the situation. 36" is the width of the wheel wells and 42" is the length from the tailgate to about 4" from the back of the seats. I am sticking at 4" tall so it stays discrete and hidden under the tire.
Thanks!
I am looking to build my first ported subwoofer enclosure.
I am using a CompRT 10" from Kicker and either the KX 800.1 or CX600.1 (whichever will work best).
The enclosure I am trying to build will be 36" Wide X 42" Long x 4" Tall out of 3/4 MDF. Also, im adding a 1" X 11.5" riser ring that is flush mount at .4" to give the woofer some extra rise room for installation. The woofer will be firing upwards.
The kicker webpage says the CompRT 10" needs 1.25-1.75 cubic feet of volume to work effectively. The box without the ports and misc subtracted is at 2.02 cubic feet.
I figured out the box volumes at the12volt.com
I want my box to tuned at 33 Hertz. (I listen to Rock, Metal, and Rap)
I have calculated that two ports at 2.5" Tall X 4" Wide x 13.46" Long.
To calculate this length I used the Port Length Calculator site.
I figured the volume that these two ports take up inside of the box is .1388 cubic feet.
The woofer will take up roughly .13749 cubic feet.
And lastly I want to make a cut out along the wide edge the ports are exiting from at 10" X 9" (centered) so I will have a space to flush mount the amp. That should take up about .13021 cubic feet of space.
In total the entire box minus the three parts, I believe there will be 1.6136 cubic feet left inside the box for air flow. Within the woofers range of 1.25-1.75.
I am also going to add some poly-fill (less than a pound) to the box, as recommended on kickers webpage for a cleaner deep base. Box Building Hints | KICKER
My question for the forum is what do you think? Are my design for the ports going to work? Is 33 Hertz a good level to be at for the desired music type goal? Any other general tips and concerns?
This enclosure is going in the back of my jeep wrangler and is going to have my spare 35" tire over it with the woofer centered in the wheel.
The size of the box is the biggest I could go in the situation. 36" is the width of the wheel wells and 42" is the length from the tailgate to about 4" from the back of the seats. I am sticking at 4" tall so it stays discrete and hidden under the tire.
Thanks!
Just received a message from one of Kickers audio support tech's. His recommendation is to not tune the woofer below 38 Hertz because it will miss notes in the music. He suggested a tuning of 42 Hertz for my application. Does anyone have any comments regarding this as well?
Hi,
4" tall is 1.5" of MDF and 2.5" of air, not a good plan,
it will weigh loads for the enclosed air volume. A box
across the space directly behind the seats would be
a much better idea IMO, and take up less space.
(At 1.6 cuft internal your looking at > 1cuft of MDF,
A cube, 14" internal, 15.5" external uses much less.)
Can't comment on the tuning, no specs for the driver.
rgds, sreten.
4" tall is 1.5" of MDF and 2.5" of air, not a good plan,
it will weigh loads for the enclosed air volume. A box
across the space directly behind the seats would be
a much better idea IMO, and take up less space.
(At 1.6 cuft internal your looking at > 1cuft of MDF,
A cube, 14" internal, 15.5" external uses much less.)
Can't comment on the tuning, no specs for the driver.
rgds, sreten.
Last edited:
I guess I should clarify on the reasoning behind the box design.
I have my back seats taken out of my Wrangler.
The size of it its so i can accomplish having a powerful woofer and also allow to carry my spare tire in the back as well. I do not have a spare tire carrier on the bumper anymore as I went with a fold down tailgate like the CJ style. I want to have my spare with me and also a subwoofer. The tire will lay across the box with the woofer firing upwards within the wheel. The 35" tire is nearly the size of the entire back.
Currently I have a box 10" woofer in the back but the box is so big I have nowhere to place the tire, thus coming up with this design to accomplish both.
I realize the box is going to be heavy, but that will also be good because it will be able to support the weight of the tire.
Just heard back from the Kicker specialist and they suggested for a dual port design "two 15 square inch port openings. Like 3 7/8” X 3 7/8” at 17.75” deep." This is to achieve a 40 Hertz tuning.
Specs for the driver can be found at CompRT | KICKER
I have my back seats taken out of my Wrangler.
The size of it its so i can accomplish having a powerful woofer and also allow to carry my spare tire in the back as well. I do not have a spare tire carrier on the bumper anymore as I went with a fold down tailgate like the CJ style. I want to have my spare with me and also a subwoofer. The tire will lay across the box with the woofer firing upwards within the wheel. The 35" tire is nearly the size of the entire back.
Currently I have a box 10" woofer in the back but the box is so big I have nowhere to place the tire, thus coming up with this design to accomplish both.
I realize the box is going to be heavy, but that will also be good because it will be able to support the weight of the tire.
Just heard back from the Kicker specialist and they suggested for a dual port design "two 15 square inch port openings. Like 3 7/8” X 3 7/8” at 17.75” deep." This is to achieve a 40 Hertz tuning.
Specs for the driver can be found at CompRT | KICKER
To achieve the "two 15 square inch port openings" I decided to increase my original size of the ports to 2.5" Tall x 6" Wide. Using the port calculator I came up with 20.54" long per port for the new length to achieve 40 hertz. I figured 1.889 cubic feet is still left in the box (subtracting the amp mount area and woofer) and the area the ports will take up will bring that number down to 1.5599 cubic feet (still within 1.25-1.75).
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