What hz levels are most sealed boxes?
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Silver Member Username: TpizzlePost Number: 138 Registered: Apr-05 | i have been reading about how important tuning your ported box to the right level for your sub is. i am going to go with a sealed box though, what hz level are sealed box and are they more efficient than a ported box tuned to the right amount? |
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Gold Member Username: SubfanaticWalton, Ky Post Number: 2902 Registered: Dec-04 | sealed boxes are tuned to the lowest frequency your sub can go, for example an atlas would be 15 hrtz |
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Silver Member Username: TpizzlePost Number: 141 Registered: Apr-05 | ok so is that the best or would my system sound better if i ported the sub in a box tuned to something like 28hz? i think i will use a sealed box unless you can convince me that ported is better. |
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Gold Member Username: InsearchofbassPost Number: 1536 Registered: Jun-04 | ill tell you what db you try my suggested ported box on your atlas 12 and im sure youll be happy it will have awesome sq |
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Gold Member Username: InsearchofbassPost Number: 1537 Registered: Jun-04 | sean Gold Member Username: Insearchofbass Post Number: 1516 Registered: Jun-04 Posted on Saturday, April 23, 2005 - 02:54 pm: -------------------------------------------------------------------------------- if it was me for really nice sq ported id do 3.32 cf and drop the sub in and port the box to 26 hz sean Gold Member Username: Insearchofbass Post Number: 1517 Registered: Jun-04 Posted on Saturday, April 23, 2005 - 03:33 pm: -------------------------------------------------------------------------------- 22 deep x 19.5 wide 13.5 high internal with one 8.75 high x 2.5 wide slot port the the depth of your box is the port depth....external measurements are 23.5 x 21 x 15 using 3/4 mdf board....your port will be tuned to 26 hz |
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Gold Member Username: James1115Wilton, Ct Post Number: 2548 Registered: Dec-04 | thats pretty big for an atlas you sure about that sean? |
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Gold Member Username: InsearchofbassPost Number: 1538 Registered: Jun-04 | yup its ported thats why plus its optimized for an even response |
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Gold Member Username: InsearchofbassPost Number: 1539 Registered: Jun-04 | he wont be disappointed |
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Gold Member Username: InsearchofbassPost Number: 1540 Registered: Jun-04 | that was using the low q setting |
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Gold Member Username: InsearchofbassPost Number: 1541 Registered: Jun-04 | its 1.46 cf. sealed and drop the sub in for optimum according to my program compared to the ported specs |
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Silver Member Username: TpizzlePost Number: 142 Registered: Apr-05 | wait maybe im not understanding but above you said 3.32 cu.ft. ported which i think is a little big for an Atlas, then in you last post you said 1.46 cf. sealed. i have always heard sealed (esp. for Atlas) sounds better, im afraid if i get a 3.32 cf. ported i will lose the sq. |
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Gold Member Username: InsearchofbassPost Number: 1542 Registered: Jun-04 | im just lettting you know your options for sealed and ported 1.46 sealed would be good for you if you wanna stick with sealed then just drop the sub in the box ....using low q setting |
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Gold Member Username: InsearchofbassPost Number: 1543 Registered: Jun-04 | the ported box will emphasize the low end more for you if you think you want it like 50 hz and down |
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Gold Member Username: InsearchofbassPost Number: 1544 Registered: Jun-04 | but the sub will prob requirte less power in the ported than rated |
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Silver Member Username: Suleman36Post Number: 874 Registered: Feb-05 | What frequencies can i hit with a Avalanche 15 Sealed at 3.0 cu ft. as opposed to ported. |
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Bronze Member Username: RedrangePost Number: 25 Registered: Apr-05 | Wut would hit harder sealed or ported for atlas? |
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Gold Member Username: SubfanaticWalton, Ky Post Number: 2908 Registered: Dec-04 | ported |
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Gold Member Username: InsearchofbassPost Number: 1549 Registered: Jun-04 | id say 40 hz and up sealed at 3.00 30 hz and up ported at 23 hz |
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Gold Member Username: InsearchofbassPost Number: 1550 Registered: Jun-04 | about 3 to 4 db more ported on the low end frequencies |
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Silver Member Username: Suleman36Post Number: 878 Registered: Feb-05 | ? didnt understand that last post..sorry |
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Gold Member Username: InsearchofbassPost Number: 1551 Registered: Jun-04 | nice curve on the avalanch 15 by the way |
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Gold Member Username: InsearchofbassPost Number: 1552 Registered: Jun-04 | what im saying is youll gain all you had in the sealed box and more ported with no loss...poted will do that much more for it |
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Gold Member Username: InsearchofbassPost Number: 1553 Registered: Jun-04 | youd have to move it up to about 25 hz to make things fit box wise with the port accounting for port whistle using a slot port |
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Silver Member Username: Suleman36Post Number: 880 Registered: Feb-05 | well for ported i came up with 3.5-4.2 cu ft. tuned to 20hz-24hz and sealed 2.5 - 3.5 |
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Gold Member Username: InsearchofbassPost Number: 1554 Registered: Jun-04 | thats 3.00 cf after displacements for the woofer by the way |
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Silver Member Username: Suleman36Post Number: 881 Registered: Feb-05 | Im pushing it with the orion 250g4 800rms |
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Gold Member Username: InsearchofbassPost Number: 1555 Registered: Jun-04 | those were both pretty close to what mine shows too |
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Gold Member Username: InsearchofbassPost Number: 1556 Registered: Jun-04 | they are rated 800 rms right? the ava 15 |
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Silver Member Username: Suleman36Post Number: 882 Registered: Feb-05 | i listen to mostly rap and complex bass with electronic so what do you think with 800watts rms. Sealed or ported and what tune. |
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Silver Member Username: Suleman36Post Number: 883 Registered: Feb-05 | they are rated 800 rms and are very efficiant even with less power. |
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Gold Member Username: InsearchofbassPost Number: 1557 Registered: Jun-04 | ported baby all the way but i love ported i dont agree that sealed aounds better than ported ive had both ported wins ....if you no how and where to tune it |
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Gold Member Username: InsearchofbassPost Number: 1558 Registered: Jun-04 | on subs in general i meant.....never had your subs |
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Silver Member Username: Suleman36Post Number: 884 Registered: Feb-05 | Im running pretty nice componant set up front. Image Dynamics CXS62 at 150rms to each. I was thinking 3.5 tuned to 22hz-24hz for ported whould be nice. |
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Gold Member Username: InsearchofbassPost Number: 1559 Registered: Jun-04 | yeah you should be good depth wise with a slot port and should sound very nice |
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Gold Member Username: InsearchofbassPost Number: 1560 Registered: Jun-04 | im sure those image dynamics are sweet are you going to compete in sq? |
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Silver Member Username: Suleman36Post Number: 885 Registered: Feb-05 | No this is for personal use everyday driver. Im looking for overall SQ and SPL mix. Just wasnt sure exactly what a good tune whould be ported.. Alot of people say sealed but what is a good port tune that will be more efficant then sealed and hit all the notes just as good with more efficiancy and depth. |
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Gold Member Username: SubfanaticWalton, Ky Post Number: 2916 Registered: Dec-04 | 28-35 hrtz prolly |
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Gold Member Username: InsearchofbassPost Number: 1561 Registered: Jun-04 | what we discussed is it mo do that |
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Silver Member Username: Suleman36Post Number: 886 Registered: Feb-05 | 28-35 is waAAAAAAAAAAAAAAAAAAAAY!!!! to high for the Avalanche kid. Better go back to the drawing board and look for 20-24Hz tops. |
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Silver Member Username: Suleman36Post Number: 887 Registered: Feb-05 | HEre what one guy posted. i'd go 4 cubes net tuned to 22hz or so if you want to go ported. My box was 3.5 tuned to 28hz but thats too high of a tune for this sub IMO. From plotting it on many box programs its way too peaky which explains why i had to EQ down 40hz ridiculous amounts lol, and the f3 is like 38hz or something in that box. Slightly larger (4 cubes net) with 22hz tune plots beautifully. But with cabin gain you'll end up with a TON of low end to the point you would need to run some heavy midbass speakers ~60hz hp to blend well. So IMO might as well seal it if you are more interested in music rather than SPL in the deep end. You will get a much better blend into your front stage. And in all honesty 20-35hz in this box (my sealed box) is already REALLY LOUD so for music porting this sub wouldn't do anything for you because you'd have to cut out all your gains in the low end to sound natural. I am NEVER EVER selling this sub |
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Gold Member Username: InsearchofbassPost Number: 1562 Registered: Jun-04 | let me know how it turns out mo |
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Silver Member Username: Suleman36Post Number: 888 Registered: Feb-05 | why don't you plot it in some box building programs and see the nasty peak from 40hz-50hz and an f3 of like 38hz in a 3.5 cube box tuned to 28hz like mine. I had to drop about 18db at 40hz in my car to get it to sound natural. Low low end was non existent without EQ because 45hz was so loud that i couldn't even hear or feel 30-35hz. With sealed my low end below 40hz is MUCH MUCH better that just goes to show that tune is too high All subs are different, some subs, like say an E12a can go in a small box tuned to say 28hz and still have GOBS of low end. Some subs like the Temptest and Avalanche need to be tuned low if you want anything resembling music in your car. I own the sub so i should know, i really need to discuss the recommended ported enclosure specs with chad because i think he needs to recommend a lower tune at least 24-25hz. And a tad larger box around 4 cubes. All the box builder programs i've plotted say 4-4.5 cubes tuned to 18-22hz for the avalanche. All of them recommend sealed over ported for it too. One thing i will say is the this is one of the loudest subs i've had in a sealed box, VERY efficient and VERY loud for being sealed using way less than 1000w. It has so much low end sealed you'd think it was ported already! It models up extremely close to the brahma, and even more low end than the XXX in the recommended boxes. brahma 15" actually needs an even bigger box for .7 QTC but i like low QTC ~.6 for best possible transient response. |
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Gold Member Username: InsearchofbassPost Number: 1563 Registered: Jun-04 | ok ill read that |
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Silver Member Username: Suleman36Post Number: 889 Registered: Feb-05 | we're not talking about box size we are talking about tuning frequency. I think the fs of the avalanche is 15hz if i'm not mistaken which is the main reason low tuning is necessary. I wouldn't just say this if i hadn't heard it for myself. At first i was like eh wtf? And then i plotted it on my programs and sure enough, exactly what i heard a HUUUUUUUUUUUUUUGE lump at 45hz i'm talking like HUGE peak and then an f3 of 38hz or something which is ridiculously high considering its ported. My sealed box has an f3 (without cabin gain) of like 32hz. I've never even considered tuning any sub i've had below 26hz before, normally i tune around 28-30hz. Its only with this sub that i've found it neccessary. i just don't want to see a bunch of people buying avalanches throwing them in these boxes and then being dissappointed with their SQ. I'm trying to help here, not argue. |
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Gold Member Username: InsearchofbassPost Number: 1564 Registered: Jun-04 | there you go bud sounds very informed |
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Gold Member Username: InsearchofbassPost Number: 1565 Registered: Jun-04 | this someelses opinion still right not you? |
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Silver Member Username: Suleman36Post Number: 890 Registered: Feb-05 | I think im gonna go ported at 3.5 tuned to 22hz and if i dont like the way it sounds ill cover the port. Simple as that. |
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Gold Member Username: InsearchofbassPost Number: 1566 Registered: Jun-04 | well you could plan ahead and add poly batting and boost the box and make a port that is temporarily fixed and adjust to the batting change |
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Gold Member Username: InsearchofbassPost Number: 1567 Registered: Jun-04 | if you dont like the 3.5 at 22 hz |
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Silver Member Username: Suleman36Post Number: 893 Registered: Feb-05 | If i dont like 3.5 at 22hz i will seal the box because that same guy that gave me that info is going 3.5 sealed. |
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Gold Member Username: InsearchofbassPost Number: 1568 Registered: Jun-04 | read this and youll get a good idea what i mean http://web.archive.org/web/20020808224043/integra.cyberglobe.net/caraudio/resour ces/fiberfill/ |
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Silver Member Username: Suleman36Post Number: 894 Registered: Feb-05 | that is a bad link |
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Gold Member Username: InsearchofbassPost Number: 1569 Registered: Jun-04 | copy and paste to a new window |
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Gold Member Username: InsearchofbassPost Number: 1570 Registered: Jun-04 | wait a min |
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Gold Member Username: SubfanaticWalton, Ky Post Number: 2918 Registered: Dec-04 | sean, one of my friends said he was an 18 inch ti pro with 2000 watts rms in a SEALED Q logic box hit 152 dbs |
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Gold Member Username: InsearchofbassPost Number: 1571 Registered: Jun-04 | http://web.archive.org/web/20020808224043/integra.cyberglobe.net/caraudio/resour ces/fiberfill/ there you go mo |
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Gold Member Username: InsearchofbassPost Number: 1572 Registered: Jun-04 | hopefully we will beat him sub lol |
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Gold Member Username: InsearchofbassPost Number: 1573 Registered: Jun-04 | what class is he in sub? |
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Gold Member Username: SubfanaticWalton, Ky Post Number: 2919 Registered: Dec-04 | he wasnt in a comp, just termlabing it at a local place down in florida |
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Gold Member Username: InsearchofbassPost Number: 1574 Registered: Jun-04 | ok well dont forget we might do the temporary baffle idea also ok. |
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Silver Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 663 Registered: Mar-04 | Sean...if you dont mind me askin, what program are you using? (bassbox pro?) Subfanatic, 152dB w/ 1 18 on 2000wrms? I really cant see that happening in a sealed box...but in a ported one, yes. Unless it was Outlaw and on an AC mic that was way out of calibration. |
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Gold Member Username: SubfanaticWalton, Ky Post Number: 2922 Registered: Dec-04 | its a 18 inch ti pro dude |
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Gold Member Username: InsearchofbassPost Number: 1576 Registered: Jun-04 | probox professional |
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Gold Member Username: InsearchofbassPost Number: 1577 Registered: Jun-04 | mmarshal i think the guys at our local shop hit 150s with a pair of 12's sealed alot with those eclipses |
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Gold Member Username: InsearchofbassPost Number: 1578 Registered: Jun-04 | hey marshal a pyramid super blue 15 hit 145 lol |
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Gold Member Username: InsearchofbassPost Number: 1579 Registered: Jun-04 | ported i think ....with 600 rms to it |
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Gold Member Username: Jonathan_fGA USA Post Number: 3771 Registered: May-04 | Sean, we had this discussion about the Avalanche not too long ago. You're thinking the same thing I did, that low 20s typically aren't needed. After looking at the specs of the sub, you'll see why, though. That sub is designed with a VERY loose suspension and not exactly ideal in a ported box. Funny we thought the same thing  dbbass, sealed boxes aren't exactly "tuned", they have a resonant frequency, though. The system resonant frequency will depends on the box size, but with a typical .707Q, it will resonate in the 50hz region or so, of course this varies by a large amount depending on the subwoofer used. |
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Silver Member Username: TpizzlePost Number: 144 Registered: Apr-05 | damn i just got on hotmail and had like 62 messages from this thread. so i think i am just going to go with a sealed box. subfanatic said above (way above) that a sealed box for an Atlas would be tuned to like 15hz, with this will the sub be able to hit almost any note and sound good? |
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Silver Member Username: Suleman36Post Number: 896 Registered: Feb-05 | Hey jonathan so if i stay sealed at 3.0 what freq will i hit in comparision to a ported 3.5 at 22hz???? |
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Silver Member Username: TpizzlePost Number: 148 Registered: Apr-05 | MO you should start your own thread so i dont get a million emails. thanks |
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Gold Member Username: Jonathan_fGA USA Post Number: 3773 Registered: May-04 | The frequency won't be 15hz, that is the resonant frequency of the subwoofer in free air, the frequency changes when in an enclosure. The resonant frequency of that sub in, say, a 3.5 cu ft enclosure will be around 40hz for that sub. Yes, it will handle the entire sub frequency range very well sealed. Mo, sealed you will hit closest to the resonant frequency of the cabin due to a flat response above around 40hz. Ported, that will depend on the cabin gain, but you'll likely still hit the loudest higher up due to the low tune of the box. Basically you can expect similar results with both since you'd have a low tuned ported, you'll just get more output down low with a ported box. |
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Silver Member Username: TpizzlePost Number: 149 Registered: Apr-05 | ok so just one more question. what do you recommend for a sealed enclosure size. the website has 3 choices and i think im going for the middle size (1.15 cuft). is that a good sealed size or should i go bigger? |
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Gold Member Username: Jonathan_fGA USA Post Number: 3775 Registered: May-04 | Depends on what you want out of it. For a little more SPL and a boomier, punchier response, go smaller. If you want the most bandwidth (drops lowest) and best SQ, go with the largest enclosure. |
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