Question about Rockford Fosgate Car Audio & Video

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Yes im trying to figure out what the airspace for a rockford fosgate p1 12 in sub. i want to build a ported box for it to put in a entertainment room

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Hello... I can help you with this. The correct airspace for a p1 Fosgate 12 is 1.79 cubic ft. I don't think the performanace of a car audio sub will be the best choice for a home audio application, though I hear of it being done on many occasions. Just that the design of the sub is different for different applications, car, home, p.a., etc. Hope this helped! Good luck with your venture!

20 year car audio installer

Posted on Mar 14, 2011

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I have a 2011 gmc sierra and im putting a kicker comp vr 12 in there and i was wondering how much airspace i would need the box im looking @ is .98 i hope its enough airspace and its ported box


For optimal performance there is really only one size for the box .Firstly, you get two different types of subwoofers, an open air, or closed air sub. If it is an open air sub ( hole with mesh in the center of the magnet) no ports are required, and the box should be sealed on the inside with silicone sealant. If it is a closed air sub ( no hole in the magnet) you need a 50mm port about 120mm long. If it is a 12 inch sub the box size will be 13 inches x 13 inches x 13 inches. Hope this helps

Dec 04, 2010 | Kicker CompVR 05CVR84 Car Subwoofer

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P3001 problem


if amp is mounted to back of the box try and move to in front of box near subs or port. the air movement of the sub will help keep the amp cooled. or you can orer some 12v cooling fans and take back plate of the amp and cool it that way. or you can buy higher quality audio, your choice

Feb 20, 2010 | Rockford Fosgate P3001 Car Audio Amplifier

1 Answer

I have two 10'' rockford fosgate punch XLC model 2810 that I want to build a box for but I cant seem to find any information on the amount of air volume i need.


you can call rockford fosgates tech support for info @ (800) 669-9899 they will be glad to help. if i remember correctly they required something like .7 per sub but please call to confirm. they will email you the whole product sheet on them. they do it all the time. if you rather use the web and email them they will return your email with the product sheet also @http://www.rockfordfosgate.com/rftech/rftech.asp just use there knoldge base and ask a question. good luck.

Oct 18, 2009 | Rockford Fosgate (P212D4) Car Subwoofer

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Box recomendations


It depends on the size of the subs- 8z 10z 12z 15z? whether or not you port the box is up to you- a ported box is generally louder than a sealed box -as you are coupling and tuning the sound from the rear of the driver with the sound generated from the front of the sub- but the box is also generally larger as well.Then aside from your preference of ported/sealed you have to account for the recommendations of the manufacturer as to whether the sub/speakers are meant to be placed in a ported or sealed enclosure. Most 10 inch subs do well in a box that yields .75 cubic feet to1.0 cubic feet.most 12z do well in 1.0 cu feet to 1.5 subic feet and 15z do well in 1.5 to 2.5 cubic feet. I have a set of 15z that require 4.25 cubic feet per sub-so its important to look into the manufacturers recommendations. The easiest box to make would be a sealed enclosure-and the sound quality generally yields a tighter more accurate bass sound along with increased power handling capability- try going to rockford fosgate .com and look into the woofer box wizard its a program that calculates air space for whatever size box you have room for-hope that helps you-good luck

May 11, 2009 | Car Audio & Video

1 Answer

Rockford sub squeaks


Hello markwasicki,

You did not specify what type of enclosure the subs are in or if they share the same airspace. But the sound you describe sounds suspiciously like the enclosure is at fault and not the sub itself.

Remove and reverse the subs in the box and test for the noise again. If the noise is still produced on the same side of the box, it's the enclosure. If the noise follows the sub, then you have a problem with that sub.

If the box is making the noise, and it's a ported box, you probably have "port noise". If it's a sealed enclosure, you could have either an air leak or flexing noise. In either case, repair the enclosure or put the subs in a new one. If the sub itself is making the noise, there probably isn't much you can do. Most likely some part of the voice coil assembly is touching where it should not.

Hope this helps.

Apr 18, 2009 | Rockford Fosgate (P212D4) Car Subwoofer

2 Answers

Need specs to build box for my truck


I do design sub enclosures for a living and I give free specs on basic setups, so you are in luck. As a starting point I'll start by saying that fitting them under the seat may not work that well. Each sub will need about .75 cu.ft. sealed and probably double or triple that for a good ported box. I can get more specific If you e-mail me (dynami28@charter.net) the specs on those subs. Specifically I will need the Theile Small parameters ( these numbers-VAS, QES, QMS, FS, etc,) and then I can give you a better idea of where they will fit. If they do go under the seat they will probably not produce really low bass because smaller boxes generally produce higher bass tones. This decision should be based on what you listen too and what you expect them to sound like. They most likely will be more thump than boom and some people like that, so figure that out as well and let me know. Also my father has the same truck and there is a lot of room under the back seat. You can also gain some extra space by using fiberglass to conform the enclosure to the contour of the truck.
-Dynami

Apr 02, 2009 | Rockford Fosgate Car Audio & Video

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Need to build a ported sub box for my alpine swr-1222d subs x 2


Try going to Alpine web site, I think they have box building program as well that you just input your sub models into and it gives you blueprints for various types of enclosures. I know Rockford has one and a comparative attachment to compare equipt specs. Or if you call Alpine headquarters you may be able to get info that way, I once sweet talked a rep @ a demo vehicle I met doing some car shows that turned me on to a senior rep @ Korbon Trading the owners of Rockford Fosgate and they gave me specs for a 5 stage band pass box for some competition subs that was more intricate and detailed than anyone before that could find me, Won me first place in spl. Matching your box specs to your subs is crucial and the best specs are often kept a secret for demo competition vehicles! So ask around with some competition guys or other top experts if your real serious about your boooom.

Mar 13, 2009 | Alpine Type-R SWR-1222D Car Subwoofer

1 Answer

How to buy the best subwoofer


There are several factors to what sounds good in a subwoofer. Your head unit, amp, enclosure size and enclosure type as well as where its placed. I tend to think that fosgates are superior to a lot of speakers but orion and JL are making some pretty impressive speakers too. Check the speakers need for airspace and make sure you can accomodate it. If you can, and the resonant frequency is more to your liking then move up to fosgates. Personally, I think the difference MIGHT be minimal assuming you are using the same inclosure, amp and head unit. Good Luck!

Dec 27, 2008 | Rockford Fosgate Pl1 210 Stage 1 Dual 10"...

1 Answer

Sub hook ups


There's a lot more factors involved than that.
  • Power capability of the subs
  • Type/size of the sub box
  • Allotted space in the vehicle for the sub box
  • Voice coil impedance of the subs versus the capability of the amp
  • Etc.

Jun 19, 2008 | Rockford Fosgate Punch 500a2 Car Audio...

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