what size box for 18’s?
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=116292
Printed Date: April 28, 2024 at 7:50 PM
Topic: what size box for 18’s?
Posted By: snhtown
Subject: what size box for 18’s?
Date Posted: September 13, 2009 at 9:30 AM
i just a pair of 18 inch subs. the guy at the store said to give them each sealed 3.0cf. so i built a box that size and it sounds pretty good, better then i thought. but i think i would like a more boomier sound. if i built a new box giving them 3.5cf do you think i will acheive this? i tried looking online to find some info about them but all i found was some korean website. i cant really complain because these subs did not cost much at all, i got them because i always wanted 18's. pretty much all my life i always got high quality and stayed away from the cheap brands but i thought i give some speakers a try. they are from a company called zebra.
Replies:
Posted By: haemphyst
Date Posted: September 13, 2009 at 9:46 AM
Post model numbers? Seems our crystal balls are AGAIN, out of order today...
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: snhtown
Date Posted: September 13, 2009 at 10:21 AM
TS-ZE1850
Posted By: DYohn
Date Posted: September 13, 2009 at 9:09 PM
"Zebra"? Never heard of them. Google returns nothing. Gotta web site? Where did you buy them? ------------- Support the12volt.com
Posted By: deeg money
Date Posted: September 13, 2009 at 9:28 PM
dude Im pretty sure you bought a sub that is for a stage or something... like part of a DJ set up. That is all I can find on Zebra. They make main stage and PA system speakers and wires. Post a photo of what you bought on here so we can take a look at it. Also how much did you buy the sub for? Does it look old or weathered? Google pretty much returned nothing for me either. Foreign websites or caraudiodeals.com main stage speakers from zebra but no model number. Sorry man
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Deeg money
"If you cant be good, be good at it"
Posted By: haemphyst
Date Posted: September 14, 2009 at 9:14 AM
Same dealie-o for me... Nothing. You must be a better web crawler than I am, and I consider myself to be a pretty good one! :)
Post the website you found, please?
I'm beginning to think you might have "gotten taken".
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: DYohn
Date Posted: September 14, 2009 at 10:55 AM
I found some listings on Flea-Bay for off-market woofers called "Zebra" with a nice looking logo printed on the dustcap and backs of some Pyramid-looking speakers. I would not recommend using them without additional information. ------------- Support the12volt.com
Posted By: snhtown
Date Posted: September 14, 2009 at 4:33 PM
acatuly i founded them at a wholesale place. i paid $100 for them both. i tried goggle and yahoo looking for them aslo and i couldnt find anything either, but a 100 bucks, why not?
Posted By: aznboi3644
Date Posted: September 14, 2009 at 5:27 PM
I wouldn't...they seem like a no name brand very low quality subwoofer. I'd rather spend that 100 bucks on a decent 12 inch sub and sound a helluva lot better than those two 18s.
This is those subs probably have a very weak motor structure and crap specs...so the enclosures you are using are probably way too small.
3 cu ft for any 18 is small
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Custom Enclosure Design
Posted By: haemphyst
Date Posted: September 15, 2009 at 7:57 AM
haemphyst wrote:
I'm beginning to think you might have "gotten taken".
------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: custombass
Date Posted: September 15, 2009 at 11:26 AM
Ok, I found a wholesale site that sells those woofers. A&W Distributors, appears as if most of their inventory is very low end. Those subs probably will not preform well even if everything used to power and enclose them is top of the line. Sorry shntown, I also believe that you were had.
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Posted By: snhtown
Date Posted: September 20, 2009 at 11:00 AM
i would agree with you, but i had a plan. i broke them in, gave them more power and they still dont sound good enough to me. this week im going to build a biger box and if they still dont sound good ill build a box for the house, if they still arnt good enough, im positive i can find someone to sell these for a profit. so if theres anything ill loose it will be my time, but i dont mind spending my time on something i enjoy doing that isnt work. so, the question remains, how much bigger should i build this box? each chamber is 3.0cf, should i do 3.5, 4.0, 5.0? what do you guys think, im sure most sealed 18 inch boxes are generaly the same size.
Posted By: custombass
Date Posted: September 20, 2009 at 1:26 PM
At least 4cu.ft. per sub
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Posted By: aznboi3644
Date Posted: September 20, 2009 at 1:39 PM
Weak motor...box probably needs to be somewhere in the 10 cu ft PER SUB range to get any decent extension out of them
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Custom Enclosure Design
Posted By: haemphyst
Date Posted: September 20, 2009 at 7:19 PM
1: Are we still beating this horse?
2: Describe the surrounds for me. Are they rolled rubber or foam, or are they corrugated paper or cloth?
3: Describe the magnets for me. Give me dimensions, (both diameter and thickness...)please. Are they a one magnet structure, maybe .75 to 1 inch thick, or are they multiple magnets, stacked? Where the spider connects to the voice coil former, how big a circle does that look to be?
4: Are they a long throw type of woofer, or very short throw?
I am asking, because I don't think they are supposed to be car woofers at all... Like I said, I bet that you were "taken" by an unscrupulous audio dealer... Yes, they do exist. IF they are a really short throw, corrugated surround, small to medium magnet structure, then they are most likely a musical instrument speaker, and will NEVER work in a car with satisfactory results. Yep... They'll play loud as hell, but they'll never sound good, as you'll never be able to give them enough airspace for any extension.
Suggestion, though? Cut a hole in your wall between your office and your living room, and mount them in a true infinite baffle alignment, and beat the hell otut of your home theater with 20 watts per channel.
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
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