i have a serious problem....i have a 2003 f150 ext. cab and want to build a box for 2 12" kicker comps. i want it to go under the seat, but still have fuctionality. i am looking for dimensions on how to build it to have enough airspace. also would they sound better facing the floor or facing the bottom of the seat? any help would be greatly appreciated.
thanks
keith
Replies (4)
swez on 09/27/2006 16:51:39
Yes, you do have a dilemma in the works as Kicker Comps prefer large sealed enclosures and even larger ported ones. Q-Logic custom fits offer a single 10", 0.65 cu. ft. and are very expensive. So, that option is out.
Kicker Comp Box Specs:
sealed box volume: 1.25-3.5 cu. ft. (2.25/sub is a good option)
ported box volume: 1.75-2.25
Basically, sell these or use in another vehicle where adequate box space is possible
Did an install for a guy this spring and we went with the Pro Box in his 04 Super Crew Cab. A single 10", ported and fed with a JL 500/1. This box rocks!!! Here's a link to them:
http://www.proboxrocks.com/home.shtml
This one for your truck: 2 x 10's:
http://www.proboxrocks.com/ford/00-03f150extendeddf.shtml
These guys do a great job with custom fit boxes for pickups. They ain't cheap, but neither is a custom built enclosure for that truck series.
swez
PS What sub amp are you planning to use in this install?
sapper21 on 09/27/2006 21:34:08
i have designed a box that i can get 1.92 cu ft per sub out of, will this be sufficient? as far as an amp goes i am currently running a planet audio bb1250.1 on the subs and have complimented them with alpine type r series mids (5.25" front and 6x8 rear) with an MRV-F545 alpine V12 amp powering them as far as head unit i have got an alpine DVA-9861. not a bad set up. it sounds pretty good i just want to be able to use my back seat again.
swez on 09/28/2006 10:29:17
The 1.92 cf/sub is a usable sealed enclosure and those subs. It may lack a little in the deep low bass below 45 Hz., but with careful planning of ports, you might be able to pull this off with that space too. Are these the 4 or 8 ohm versions of the Comp series? Go to Kicker.com for details on ports for this sub:
http://www.kicker.com/06/tech-support/manuals/manuals/2005/2005%20Comp%20Sub%20Manual.pdf
Kicker shows a compact 1.75 cf enclosure and porting details. That would have to be modified a bit. In your case, a round port of 3.0" ID and 6.0" long will tune this chamber to about 35 Hz. Not bad at all if you can make the port fit well.
That sub amp is pretty strong at 2 ohm loads for these 150 watts RMS per sub. However, if these are 8 ohm models, you should be sitting pretty with a net 4 ohm load.
2 ohms: 700 watts RMS
4 ohms: 450 watts RMS
The rest of your system is very good. Nice selection of speakers HU and amp to power the speakers. If you get these subs working up to par, this should be a very well balanced daily driver.
Comments?
swez
swez on 09/28/2006 10:40:43
Oh... does the sub amp have an infrasonic filter feature? If yes, setting that to about 30 Hz., will protect woofers from deep bass frequencies that would otherwise damage your ported subs.
If this amp does not have such a feature, Harrison Labs passive HPF filters, (F-Mods) will do the job. This one specifically:
http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=266-248
swez
thanks
keith
Replies (4)
swez on 09/27/2006 16:51:39
Yes, you do have a dilemma in the works as Kicker Comps prefer large sealed enclosures and even larger ported ones. Q-Logic custom fits offer a single 10", 0.65 cu. ft. and are very expensive. So, that option is out.
Kicker Comp Box Specs:
sealed box volume: 1.25-3.5 cu. ft. (2.25/sub is a good option)
ported box volume: 1.75-2.25
Basically, sell these or use in another vehicle where adequate box space is possible
Did an install for a guy this spring and we went with the Pro Box in his 04 Super Crew Cab. A single 10", ported and fed with a JL 500/1. This box rocks!!! Here's a link to them:
http://www.proboxrocks.com/home.shtml
This one for your truck: 2 x 10's:
http://www.proboxrocks.com/ford/00-03f150extendeddf.shtml
These guys do a great job with custom fit boxes for pickups. They ain't cheap, but neither is a custom built enclosure for that truck series.
swez
PS What sub amp are you planning to use in this install?
sapper21 on 09/27/2006 21:34:08
i have designed a box that i can get 1.92 cu ft per sub out of, will this be sufficient? as far as an amp goes i am currently running a planet audio bb1250.1 on the subs and have complimented them with alpine type r series mids (5.25" front and 6x8 rear) with an MRV-F545 alpine V12 amp powering them as far as head unit i have got an alpine DVA-9861. not a bad set up. it sounds pretty good i just want to be able to use my back seat again.
swez on 09/28/2006 10:29:17
The 1.92 cf/sub is a usable sealed enclosure and those subs. It may lack a little in the deep low bass below 45 Hz., but with careful planning of ports, you might be able to pull this off with that space too. Are these the 4 or 8 ohm versions of the Comp series? Go to Kicker.com for details on ports for this sub:
http://www.kicker.com/06/tech-support/manuals/manuals/2005/2005%20Comp%20Sub%20Manual.pdf
Kicker shows a compact 1.75 cf enclosure and porting details. That would have to be modified a bit. In your case, a round port of 3.0" ID and 6.0" long will tune this chamber to about 35 Hz. Not bad at all if you can make the port fit well.
That sub amp is pretty strong at 2 ohm loads for these 150 watts RMS per sub. However, if these are 8 ohm models, you should be sitting pretty with a net 4 ohm load.
2 ohms: 700 watts RMS
4 ohms: 450 watts RMS
The rest of your system is very good. Nice selection of speakers HU and amp to power the speakers. If you get these subs working up to par, this should be a very well balanced daily driver.
Comments?
swez
swez on 09/28/2006 10:40:43
Oh... does the sub amp have an infrasonic filter feature? If yes, setting that to about 30 Hz., will protect woofers from deep bass frequencies that would otherwise damage your ported subs.
If this amp does not have such a feature, Harrison Labs passive HPF filters, (F-Mods) will do the job. This one specifically:
http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=266-248
swez
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