sub enclosure
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=29098
Printed Date: May 14, 2025 at 11:17 AM
Topic: sub enclosure
Posted By: VICgt
Subject: sub enclosure
Date Posted: March 27, 2004 at 2:18 AM
hey all, i'm very new to all of this car audio, so please be gentle. i am looking at putting a sub in my fiero, back behind the seat. i have been looking at a few different ones, MTX T6104a, t6124a, kicker compvr 01c10vr4. i'm trying to find a solo baric 8", but due to remote location, am having trouble. i have looked at how to figure out what size box to build on this sight but, holy crap, i don't understand any of it. i shouldn't say that, lol. i just don't have a clue as to what size to make it. if i go with the kicker compvr, it says it needs 0.8-3.0 cubic feet for a sealed unit. it will take me years to figure out what the dimensions should be, and i wanna get it in before i'm too old for the car. can someone please help me with the dimensions thx in advance VIC
Replies:
Posted By: Clean Install
Date Posted: March 27, 2004 at 4:41 AM
basicly all you do is.... well measure the Height x width x length, remember though it is the internal volume so the mdf you have too account for....a 12x12x12 inch box is not 1cubic ft. if the mdf is 1inch thick just subtract the thickness of the wood....so a 12x12x12 inch box would be actually 10x10x10 if you take of for the wood 1 inch on both sides....hope that helps you can use the volume calulator on this site to find out how many cubic inches a 15inch x 9 inch x 15 inch box would be... I hope that helps....I know for sure others can explain it even better than I ------------- If we learn from each success and
each failure, then we can improve ourselves
Posted By: aggie altima
Date Posted: March 27, 2004 at 4:55 AM
Seeing that you are putting it behind your seat, you are more than likely going to build a triangular box. If that is the case, use the volume calculators for the wedge enclosures. If you still need help, try to find the exact dimensions of the space behind your seat and post it, and we will try to help.
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Jon
Don't like rockford subs? Then don't look at my car =)
Posted By: VICgt
Date Posted: March 27, 2004 at 8:34 AM
i understand that now, but when i'm figuring out that, do'nt i have to also take in account the sub when it's in the enclosure (subtract the volume of the sub and then add the difference to the overall volume) eg the volume the sub calls for is 0.8 cubic feet, would i need to make it bigger than that.. is plywood better than mdf, or does it matter? is an alpine v12 mrv-100m amp enough to run these subs? thx for the responses VIC
Posted By: VICgt
Date Posted: March 27, 2004 at 8:35 AM
also, which of these subs would you prefer? and is that a good amp? need quick answer, going to buy them today
Posted By: DYohn
Date Posted: March 27, 2004 at 9:27 AM
VICgt] wrote:
p>i understand that now, but when i'm figuring out that, do'nt i have to also take in account the sub when it's in the enclosure (subtract the volume of the sub and then add the difference to the overall volume) eg the volume the sub calls for is 0.8 cubic feet, would i need to make it bigger than that..is plywood better than mdf, or does it matter? is an alpine v12 mrv-100m amp enough to run these subs? thx for the responses VIC
Yes, take the volume of the woofer and any ports into account and increase enclosure size to compensate. No, don't use plywood, use 3/4" MDF. The Alpine is a good amp at about 100 watts, and it will power the MTX woofer you list at about 1/2 it's ratings. It would be PLENTY for a Fiero, unless you are trying to "rock the block."
Posted By: VICgt
Date Posted: March 27, 2004 at 9:36 AM
would it work with the kicker? which would be a better sub? VIC
Posted By: DYohn
Date Posted: March 27, 2004 at 9:48 AM
I prefer MTX to Kicker, but both are in the same class.
Posted By: forbidden
Date Posted: March 27, 2004 at 1:56 PM
Where are you in Canada that is remote, I'm on an Island for pete's sake, that is semi remote. Remote to me is like say Inuvik or Desolation Harbour or anywhere in Quebec / Labrador. For your vehicle I would recommend a good small box shallow mount speaker. I highly recommend the Planet Audio NEO series for this application. They have a mounting depth of under 4" for the 10" driver, handle 250 w rms, have a 5 year warranty and sound great. They would be a great sub in this application with no loss of seat travel.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: VICgt
Date Posted: March 27, 2004 at 2:12 PM
i live in cold lake, Alberta. where are you from? PEI. i'll take a look at yours, never heard of them, we only have a wal-mart and crappie tire here. 3 hours to edmonton. thx for the info VIC
Posted By: VICgt
Date Posted: March 27, 2004 at 2:18 PM
where the heck did you get them, they also sound VERY expensive. judging buy my selection, you can see my budget VIC
Posted By: forbidden
Date Posted: March 27, 2004 at 2:27 PM
PEI, hah, no East Coast Newfie jokes here. I am in Courtenay / Comox (CFB Comox) on Vancouver Island. As I am a dealer it is best that I do not reply on open forum for pricing, you have a PM coming. ------------- Top Secret, I can tell you but then my wife will kill me.
Posted By: DYohn
Date Posted: March 27, 2004 at 2:33 PM
Planet Audio Neo is an excellent choice, and far, far better than either MTX or Kicker. Or their Vortex line if you have a bit more room. Remember that you get what you pay for... which is one reason why all the prices at Wal Mart are low. Wal Mart is a great place to buy soap and chips and toilet paper. Bad place to buy electronic equipment. Planet Audio speakers genrally cost two to three times what Kicker costs, but it will blow Kicker (and MTX) away in both SQ and SPL and last ten times longer.
Posted By: VICgt
Date Posted: March 27, 2004 at 2:46 PM
i'm at cfb cold lake and comox is definitely not isolated compared to here, we come outta the woods to go hunting lmao. VIC
Posted By: FullForce
Date Posted: March 27, 2004 at 9:35 PM
forbidden, no loss of seat travel? ... I can tell you never owned a Fiero cuz the seats when all the way back sit against the firewall.
Posted By: customsuburb
Date Posted: March 27, 2004 at 9:40 PM
Posted By: VICgt
Date Posted: March 27, 2004 at 9:55 PM
first, i have very short legs, so i have a little play. second, the fiero actually has two firewalls and alot of people cut the first one to get more room. https://www.fierosound.com/stereo.html
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