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KJM01
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Thank you Santa!...Now what box is best?
OK heres my go around. Santa brought me a brand new set(2) of JL audio 12wx-4(200w rms) And the box they came in was from an audio install place. The box is 1.31cuft per driver tuned to 30hz, I have a box that is 1.8cuft per driver tuned to 37hz.
now JL reccommends 1.5cuft minimum tuned to 30 hz, before trying them both what are your opinions on what box is best. I listen to everything so theres not much preferance any help would be appreciated thankx in advance!
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 12-28-2010 11:15 AM |
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Ianarian
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What kinda car they going in, what direction will the ports fire, what direction will the subs face, what are you powering them with? Otherwise, I'd take the 1.8 box and extend the ports on the outside of the box.
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| 12-29-2010 12:34 AM |
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KJM01
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RE:
quote:
Originally posted on 12-29-2010 by Ianarian
What kinda car they going in, what direction will the ports fire, what direction will the subs face, what are you powering them with? Otherwise, I'd take the 1.8 box and extend the ports on the outside of the box.
both boxes have subs front and port front in between, the difference between the two other than size is the smaller box has no seperation between chambers so both subs share the port, and the bigger box the subs are seperated to diff. chambers w/ a slot port each.
I havent tried placement for them yet its too cold and im not movin until this weekend(40's hopefully!)But they are going into a '05 ford five hundred(19.5sqft of space in the trunk)I was going to either place them forward facing into the cabin, thats the way I had my other set up in the buick and sounded best.I might even seal them off best i can firing into the cabin but the seat has a thick wood frame so im not sure how that'll sound so they might end up facing back.
And I am powering them with some old class a/b sony two channel rated for 200w x 2ch which is also what the subs are rated for. ( I also figured i'll need a small battery in back but that can wait for a min i just bought a batt and i wont be slamming it until then. my total wattage is only a little more than the alt can handle.)
Im not gonna mess with extending the ports because i dont know how. Most likely Ill have a box built to specs. but for now one or the either will have to do until spring.
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| 12-29-2010 11:18 AM |
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Ianarian
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Gotcha... Sorry for all the questions, believe it or not my brain retains info I inquire about. Seems like I will never breach my interests capacity........ I like the port to same chamber concept. Problem with the X4's in a ported enclosure in the trunk, is not being able to clearly hear what is going on with the speaker. Those JL's, that are more delicate, are strictly SQ subs. They are good because they give the sound without all the vibration accompanied with it. I like to set those up sealed. Just a safer feeling. Sounds like you're on the right track facing forward too. Do you have speakers in the rear dash? Removing those is often a good gateway for sound to get through. As if you didnt know, heeh. My build opinion for those would be 2.0ft3 sealed each. It comes with some boomy like sound, but somewhat gives the sound a ported box may give. Does that make sense? Now, only a few enthusiasts I know would do such a thing. Its not common you hear someone recommending over-sized sealed boxes. My subs are thiele parameter style running at double the recommended enclosure size. My practices are not common and I can never figure out why. All my friends use our design and we all love it. Truthfully, the sound you'd hear from any spec sealed box bothers me. The bass sounds dry like Cypress Hill recording. If you can recall what bass sounds like from Too Short, that's the way I like my subsonic sound to blend in. Black Eyed Peas is another one that does well in our enclosures. I like to XO my Low pass at 50-60Hz with a slow roll off, so the sub will still pick up sound in the low 100Hz range decently. Not a lot mind you, but enough to make a non-rap song sound good. A ported box looses a lot of these features and you have to start worrying about tuning frequency's which do you no good at all when listening to Alternative music....Kapish? You basically have a SQ oriented sub which if not careful, can be over driven easier than you might suspect. Anyway, now you are probably no better off then before with all this babbling I been doing so I'll quit now......
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| 12-29-2010 04:45 PM |
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KJM01
Member
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RE:
quote:
Originally posted on 12-29-2010 by Ianarian
Gotcha... Sorry for all the questions, believe it or not my brain retains info I inquire about. Seems like I will never breach my interests capacity........ I like the port to same chamber concept. Problem with the X4's in a ported enclosure in the trunk, is not being able to clearly hear what is going on with the speaker. Those JL's, that are more delicate, are strictly SQ subs. They are good because they give the sound without all the vibration accompanied with it. I like to set those up sealed. Just a safer feeling. Sounds like you're on the right track facing forward too. Do you have speakers in the rear dash? Removing those is often a good gateway for sound to get through. As if you didnt know, heeh. My build opinion for those would be 2.0ft3 sealed each. It comes with some boomy like sound, but somewhat gives the sound a ported box may give. Does that make sense? Now, only a few enthusiasts I know would do such a thing. Its not common you hear someone recommending over-sized sealed boxes. My subs are thiele parameter style running at double the recommended enclosure size. My practices are not common and I can never figure out why. All my friends use our design and we all love it. Truthfully, the sound you'd hear from any spec sealed box bothers me. The bass sounds dry like Cypress Hill recording. If you can recall what bass sounds like from Too Short, that's the way I like my subsonic sound to blend in. Black Eyed Peas is another one that does well in our enclosures. I like to XO my Low pass at 50-60Hz with a slow roll off, so the sub will still pick up sound in the low 100Hz range decently. Not a lot mind you, but enough to make a non-rap song sound good. A ported box looses a lot of these features and you have to start worrying about tuning frequency's which do you no good at all when listening to Alternative music....Kapish? You basically have a SQ oriented sub which if not careful, can be over driven easier than you might suspect. Anyway, now you are probably no better off then before with all this babbling I been doing so I'll quit now......
No, there's no speakers in the rear deck which gives me the idea to try the subs pointing up to the holes where they were cause the rear seats are wood which I suspect will not be a good thing and im not up to cutting the back of the seats at the moment.
I'm not sure I'd do a box that big for only 200w,( I may just try it to see) i dont want that much boom, as ive blew my fair share of subs trying to get more boom, the more accurate i can get the better i reckon, my ears hurt from too much boom and i'm trying to get away from that....at least for now.
And the new Cypress Hill album Rise up is pretty good, ill have to see how it sounds for myself i guess.Ill let you know.
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| 12-29-2010 06:10 PM |
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Ianarian
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The highs on the new cypress are recorded distorted... beats are sick though. About the over-sized sealed box... that is the idea behind the 200w. Turns out, in a enclosure calculator the parameters recommend the sealed. Giving the sub breathing room in a sealed enclosure will dominate over the sound you'd get ported. There would be more for your ears to be able to distinguish. To sum it up though. A sealed box is a disaster in a trunk. Rattle city and a lot of unanswered tone have made me dislike the idea. Without rear dash speakers, you know what you got to do....
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| 12-30-2010 03:28 AM |
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KJM01
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I was thinking about mounting the amps there any way.Thanks for the input and ill see if i can find(or have made) that size box.And ill most likely seal them off too! If I ever learn how to post pics ill put them up some time soon.
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| 12-30-2010 06:47 PM |
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