fiberglass box and mdf box
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=93535
Printed Date: May 10, 2024 at 11:06 AM
Topic: fiberglass box and mdf box
Posted By: giponu
Subject: fiberglass box and mdf box
Date Posted: May 02, 2007 at 4:28 AM
I've been reading some of the articles and I see that there's many types of boxes for just plain MDF wood boxes.. And fibreglass boxes seem to be all the same. which looks like a sealed box.
If i wanna be heard outside the car,will a fibreglass box do the job? because at the moment i have a ported box and it is loud.and i tried covering my ports up.and it sounded really..umm not loud.hhaha thnx
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-[ G.I.P.O.N.U ]-
Replies:
Posted By: roo-dog
Date Posted: May 02, 2007 at 8:09 AM
either type of box can be built sealed or ported. if you want just loud, go ported. sealed will give you better sound quality and usually a deeper bass. if i build a box of mdf, i will usually put several layers of fiberglass on the inside to strengthen the box. you need to follow mfgrs. recommendations for sealed/ported enclosure and port sizes, or draw one up using a program. the enclosure sizes are sometimes significantly different between sealed and ported for the same speaker. just covering the port is not necessarily what it will sound like in the correct sealed box. If you post what type/ size of speakers you have, i bet someone here can give you a recommendation.
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(4)g5-1244, (4)gtr12, (2)ppipcx2400, (1)pcx4125, (1)pc4800.2, (3) pair mb quart 6.5"Q, (4)optimas, alumapro (1)5 and(1)15 farad cap, premier deh-p860mp, pioneer xm -dual H.O. alternators
Posted By: giponu
Date Posted: May 02, 2007 at 8:28 AM
alrites cool.thanks. nd the subs i have are pioneer ts-306c. 400w RMS 1000w Peak and they are 12inches with 4 ohm reistance and max.1.75cu/ft box lols.. atm my box is ported but u just cant hear it that gud..mayb its teh box.lols ------------- -[ G.I.P.O.N.U ]-
Posted By: aznboi3644
Date Posted: May 02, 2007 at 7:35 PM
if you wanna be heard outside the car than build a box that will fire the subs out of the windows and roll the windows down with your system on...
Posted By: austincustoms
Date Posted: May 02, 2007 at 8:49 PM
...or why not just cut holes in your rear quarters and mount subs in em'?
Just kidding, but you can fiberglass any type of enclosure. I've done a few ported fiberglass enclosures myself - a word of advise, instead of trying to make the the enclosure, then cut a hole for, and mount a port (like my dumb ass did the first time), make a ring (just like a speaker ring) that your port can slide into. Mount it as you would a speaker ring, then just slide your port in once your done.
Posted By: giponu
Date Posted: May 02, 2007 at 9:33 PM
sounds gud. but which would sound better? fibreglass box without ports? or with ports? i generally listen to RnB music.with alot of bass. and i like the bass to be heard when im coming..lol.its just my habbit to be driving round with loud music.lols ------------- -[ G.I.P.O.N.U ]-
Posted By: austincustoms
Date Posted: May 03, 2007 at 12:04 AM
Assuming all is done correctly and of a decent quality - A ported box will usually be louder and smoother, while a sealed box will be punchier/ more responsive, hit lower notes, and be more precise. If you know what you're doing, you could possibly use a combination of sealed and ported enclosures with 2 or 3 subs.
Posted By: kirktcashalini
Date Posted: May 03, 2007 at 4:03 PM
yeah, I think they put tvs in the body kit of a car on pump my ride once... Be the first to put subs on the body of your car.
ported...
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99 Blazer LT. Yellow Top. Big 3. Infinity Kappa Speakers All Around. Jensen CD/DVD flip out. 2 Infinity Kappa Perfect 12DVQs powered by a Alpine PDX600.1 (in one custom box, building a FG box)
Posted By: aznboi3644
Date Posted: May 03, 2007 at 7:37 PM
a ported box can sound better than a sealed box, hit lower, and be more precise of designed and built correctly
Posted By: giponu
Date Posted: May 03, 2007 at 7:47 PM
ook taking this for example. 
does that look ported or sealed? and it still gives a gud thump and can be heard outside the car too. ------------- -[ G.I.P.O.N.U ]-
Posted By: roo-dog
Date Posted: May 04, 2007 at 7:38 AM
other things to take into consideration: i don't see any info on what kind of power you have running your subs. does the amp match up well with the subs, allowing you to get the most out of them.(?) the other thing, too, would be the type of vehicle. that is, what kind of obstructions are between the subs and the front windows. heavy leather seats take a lot more to push sound through than, lets say, smaller, cloth seats.
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(4)g5-1244, (4)gtr12, (2)ppipcx2400, (1)pcx4125, (1)pc4800.2, (3) pair mb quart 6.5"Q, (4)optimas, alumapro (1)5 and(1)15 farad cap, premier deh-p860mp, pioneer xm -dual H.O. alternators
Posted By: giponu
Date Posted: May 04, 2007 at 9:28 AM
roo-dog wrote:
other things to take into consideration: i don't see any info on what kind of power you have running your subs. does the amp match up well with the subs, allowing you to get the most out of them.(?) the other thing, too, would be the type of vehicle. that is, what kind of obstructions are between the subs and the front windows. heavy leather seats take a lot more to push sound through than, lets say, smaller, cloth seats.
my badd.. nar my amp isnt pumpin enuf to the subs.. the subs are 400w rms. and im only feeding it 150w rms. from my amp.each sub. i have 2 subs. and the amp is 600w peak and my subs are 1000w peak. and my amp is a 4 channel set on LPF.. it sounds pretty loud in the car.. ------------- -[ G.I.P.O.N.U ]-
Posted By: roo-dog
Date Posted: May 05, 2007 at 4:02 PM
ok, more to work with... well, obviously, you could get a little bigger amp. but if you go that route you will have to be more careful seting the gains as to not overpower the subs. i like the pioneer sound (for the money), but the ones you have are not spl subs. you can also try building a box closer to the max recommended volume for those speakers. you will probably get a little more sound (especially low freq). the downfall is that you will lose some of the power handling of the subs- not a concern in your current situation. an easier, cheaper way to do a similar test to see if it will help; stuff the boxes with poly fill from walmart or wherever. may be worth a try.
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(4)g5-1244, (4)gtr12, (2)ppipcx2400, (1)pcx4125, (1)pc4800.2, (3) pair mb quart 6.5"Q, (4)optimas, alumapro (1)5 and(1)15 farad cap, premier deh-p860mp, pioneer xm -dual H.O. alternators
Posted By: giponu
Date Posted: May 06, 2007 at 6:17 AM
SPL subwoofer is???
issert the subs that have 2 sets of cables that can be connected to them?
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-[ G.I.P.O.N.U ]-
Posted By: roo-dog
Date Posted: May 06, 2007 at 2:37 PM
well, by "spl subs", i mean, high power handling, competition subs, that's all. subs are usually separated into two categories: spl (high power handling, high output, etc. ), or sq (sound quality, not just loud).
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(4)g5-1244, (4)gtr12, (2)ppipcx2400, (1)pcx4125, (1)pc4800.2, (3) pair mb quart 6.5"Q, (4)optimas, alumapro (1)5 and(1)15 farad cap, premier deh-p860mp, pioneer xm -dual H.O. alternators
Posted By: imaxspl
Date Posted: May 06, 2007 at 4:52 PM
A ported box will give you smooth response over a long range of frequencies, but with less accuracy and lower power handling(SPL) It wont get that really deep sounding bass that a sealed box can produce. Make sure you tune the port correct, unless you want your subs doing the harlem shake. If your going for sq do the sealed, if your tring to wiz your neibors off do the port. for the 12 in i think u need to slot load you port.
Posted By: aznboi3644
Date Posted: May 06, 2007 at 6:11 PM
imaxspl wrote:
A ported box will give you smooth response over a long range of frequencies, but with less accuracy and lower power handling(SPL) It wont get that really deep sounding bass that a sealed box can produce. Make sure you tune the port correct, unless you want your subs doing the harlem shake. If your going for sq do the sealed, if your tring to wiz your neibors off do the port. for the 12 in i think u need to slot load you port.
sorry but this whole post is basically incorrect.
A ported box can sound better, louder, just as accurate, and deeper than a sealed box can if designed and built correctly.
the whole sq=sealed and loud boom boom=ported is not fully correct.
It's all in the enclosure
Posted By: imaxspl
Date Posted: May 06, 2007 at 6:50 PM
aznboi3644 wrote:
imaxspl wrote:
A ported box will give you smooth response over a long range of frequencies, but with less accuracy and lower power handling(SPL) It wont get that really deep sounding bass that a sealed box can produce. Make sure you tune the port correct, unless you want your subs doing the harlem shake. If your going for sq do the sealed, if your tring to wiz your neibors off do the port. for the 12 in i think u need to slot load you port.
sorry but this whole post is basically incorrect.
A ported box can sound better, louder, just as accurate, and deeper than a sealed box can if designed and built correctly.
the whole sq=sealed and loud boom boom=ported is not fully correct.
It's all in the enclosure
I do realize that my response isn't 100% correct for every situation but what sounds good to u may sound horrible to someone else. there are so many variables that go into getting that "perfect" sound. Like woofer placement and room temperature. when someone asks what sounds better......its a tough question because it depends on a lot of things. i just gave a answer that should apply about 70% of the time. For me, with equal comparison to sealed ported just sounds better. Your best bet is to get the t/s parameters of the sub, plug it into a good box building program and design your sub based on that. just my 2cents
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