How to make a subwoofer box louder!
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- เผยแพร่เมื่อ 21 พ.ย. 2015
- This is a quick video on how to coat/seal the inside of your subwoofer box to gain SPL/DB for free! I used automotive rubberized undercoating I found at Autozone for around $7 a can. It is also used for sealing, rust prevention and sound deadening! It is night and day!
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Been doing that for years. People always wanted to know why my bass always sounded louder then theirs.
Fiber glass resin works really well too.
How
Damn who needs subs when you can make your box louder.
Nice
Plus you don't even need an amp
I rolled on flexseal and brushed on nice thick coats on my joints and corners on the fourth order I just built, I had some vibrations so I figured I'd have to add supports loosing air volume but tried the flexseal thanks to this video and everything worked out great... Didn't loose and cubic feet, no more vibrations, and not only able to hear the difference of loudness but the meter didn't lie thanks for the tip
One of the coolest boxes I've ever seen was made out of 2 inch plexiglass when you look through the back windows is that full size van it look like it's 15s were floating! I will say it hit harder than almost any box I'd heard with just two 15s. The amazing part was he was using a set of mofo 15s not the best but they do the job for the price that he paid and it was amazing. I have seen two Sundowns not able to keep up with it. Granted his box cost more than His 15s even if he would have bought in six. But the plexiglass box worth it both look and sound
Hell yeah
great information on this vid. Wood and mdf IS so porus if not sealed totally blows the Q of the box....with biggest noticeable problems in sealed boxes. Simply caulking the joints is a waste of time if you don't bother to seal the surface inside. That undercoating is great stuff and works well. Ive also used epoxy resin.. even in a pinch used kilz primer/sealer with good results. Thanks for the vid
Good looking out homie,and I subscribed bro!!
Tater Tater thanks man
That is a really good idea 👍🏻
I thought about doing that. I'm building a new box. Old one blew apart. No seal at all. Could hear the box rattling more than the sub. Lol. Thanks for the tip!!
I use a the two part bar top clear coat you can lay down 1/4" thick layers on each inside of box simply by rotating after it cures which is fast, obviously it strengthens all boxes but makes it very easy to strengthen a misshapen box as well.
2:03 u have a hole in the rubber surrond
I need to build a new box for my 10 inch punch p1. Its been a champ so far running off a 500wrms rockford amp. But its only in a small sealed 3/4 mdf generic box right now. Cant imagine how much better it could be in a real box. People are already surprised when I tell them its only a small 10 inch.
I will probably do this to my next box. Its a pretty good idea.
I always used fiberglass resin. scuff up wood so it grips better if u r building it yourself it's a lot easier but that makes the rest and brush it on a nice coat and it will be a solid box
Yeah man that definitely works great!
i did this to my box..i’m running 3 massive 10.4XL 3000 watts ported wow what a difference!!!!!!
this guy is a genius
fasfatty go haha
No joke great idea I build boxes all the time. I gotta try this
fasfatty go you will notice a difference too, it's really a simple concept when you think about it
I can dig it
Nice video
I work for a stone company and have made a bookshelf box and a 12" enclosure out of quartz (engineered stoned) a couple days ago...that mother Frito is a heavy son of a buck but sounds pretty dad gum gigidy good
dude you'r voice is coool... its like the triler movie guy :D
Thanks haha
Interesting it would be great if you can do a spl measure before and after the added items you suggested that way we can see how much of a gain you get.
Austin Torres I agree man and I wish I had put some numbers up for all these doubters and haters
It does work ive been using this method for over 10 yrs..works like a champ for sound deadening and inexpensive to do
you should have metered it before and after to get an idea of how much difference it makes
Should have, great idea man. This was his daily pounder and he doesn't meter.
I am reading all the comments and a lot of them talk about fiberglass resin and pouring it on. I think that's a great idea but don't stop there get some fiberglass cloth that is right next to resin on the shelf then pour the resin slap the cut cloths of fiberglass into the resin with the each sheet grained to 45 degrees from the last one and boom you will have one hellofa solid box. I just did a box for my dc level 6 18 m4 using this method and ended up saving a lot of weight because I was able to get serious results from 1/2 in mdf and about 8 layers of fiberglass wrapped around it.
Quick question when fiberglassing a subwoofer enclosure with fiberglass resin do you have to staple fabric to the subwoofer enclosure before applying the fiberglass resin
Ok thanks for getting back to me bro,I appreciate that,hey I got a question for ya I'm looking at getting 2 18s, and I'm stuck between either DC level 4,or the SSA Zcons, have you had any experience listening,or with either subs performance,any input you have will be greatly appreciated thanks.
Tater Tater I've seen DC subs come apart, can't speak on the SSA line honestly
Ok thanks for your input bro,I was leaning towards the Zcons,anyways,a few other bass heads had also given me some input so ssa it is thanks bro.
Good advice. Sounds like common sense to me. Back in the day I used to make boxes out of 3/4 particle board and apply several coats of polyurethane to make it air tight.
I have a plexiglass box with a jbl mkII 12 it's amazing even at very low power.
Dope man
this is hard as fuck to do if you are spraying it after the box is built...
akuma4u lolol
StinkyArmpit Bass
best to spray it on before the front sub side panel is installed on the box , then u can coat the inside proper and do the sub side piece on its own and then install it.. will have full coverage.
thanks i have 3 cans laying around ..Left over from doing a friends trucks undercarriage,,
Is passive bass regulator better than all sealed I tend to agree with you sealed sounds best I only port when I think box may break but now I hear about passive bass regulator and think I should try it
I have a box built for a JL Audio W7 sub and it's 1.5cf.I installed a Sundown SA10 in the same box but the sub ask for a box not over 1cf.I notice the bass lays higher than the W7 that was in there.I was told today that making the box 1cf as its supposed to be compared to the 1.5cf that it is now could actually help lowering bass frequency going to the smaller proper size box.I have always thought the larger the box the lower the frequency.Do you happen to know about this?
I just wanted to ask if the gist of the video is "put a bigger sub in it?"
Great video.... just jump to minute 3 to get to the point! 🙂
how are you sure it works if u haven't db'd the difference? It sounds like it would... but proof would be badass
vapaholic I agree buddy proof would be awesome if we had set up a TermLab and metered it. Even to the human ear it's noticeably louder but wish I had some test data! 😤
It would be badass if u could get this, but thanks for the response!
Loudness vs db can be two word. A loud noise don't need to have a high Db.
HyperNova Electronics a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale.
(in general use) a degree of loudness.
"his voice went up several decibels"
@@MyAudioPipe actually it does. Db or decibels is the measurement for loudness. Therefore you can be loud without higher dbs
Well if you have only one sub and u want the best bass, do a 4th order box my dad has a crossfire 12 on 500 watts in a 4th order box and it hits as hard as 2 12s in my opinion
Would that help with a sealed box? I would use ported, but my Cerwin Vega HED 12dvc is designed for a sealed one, will it help?
Standard 2/4 ohm JL audio subs exist. I agree that JL is a pain with the 3 ohm coils.
I compare JL Audio doing that to Apple making you buy their own lightning cords. 😤
Will rubber concrete on the box help ?
Hey man, ive got 2 kenwood w12s in a non ported box. Should i go buy a ported box for these??? Could i just port the box? Im a newbie at this and in need of direction. My amp is an 800w pioneer.
What if it's sprayed on the outside? Will that do any difference
Could u use flex seal?
Word that shit looks dope!!
Thanks buddy!!
Just make sure you let it completely dry due to the fact that it could affect the glue that is used on the speakers. Same thing when using silicone let it completely cure before installing your subwoofers
What about coating the inside of a subwoofer enclosure with concrete would that prevent the subwoofer enclosure from flexing
no it will still flex
My question, will this work on a sealed box ?... I have 1600 watt skar audio 1200.1 rated rms. And 2sd12 skar sub 600 rms rated, and I have them in my 2015 durango... trying to do it once I receive my sub back in
Does putting rubberized undercoating inside the subwoofer enclosure lower the tuning frequency of the enclosure
Doubtful considering it takes up a very very small amount of volume
I fiberglassed my box completely, inside and out. I have 2 sundown x10 D4 Rev2 with sundown 3000 amp. Made a huge difference in sound and that's just with their spec box.
Gold Silver Eagle DID YOU seal inside your box also? i got 2 SD AUDIO 12s D2 with a ported box. not sure if i should coat the inside?
JasonH420 I did seal the inside. I basically turned the box at every angle and poured a resin on every joint on the bottom. Let it harden. Reposition the box, and hit every bottom joint/angle with resin. After that I went back in and glassed all walls and angles with resin and the woven mat. On the outside, I just resined the box. I wood glued everything and used 2" crown staples, probably to many staples. But I hadn't planned on glassing it in at that point either. Is it overkill? Ehhhh? Will I have to make another box? Never. Unless it some crazy band pass. I can say that box has zero air leakage at any joint. I also feel the glass has eliminated any flex in the MDF. . They pound. I love Sundown Audio. Call them with any questions, they're happy to answer. And as far as returns go. Top Notch. I am a customer for life. Good Luck Brother. Let me know what you think if you dive into it.
What the fuck does a hippo need a box for?
massive hippo is a sub model
So I have 2 sundown sa 10's in the qbomb tuned to 30 hz . I noticed it has that stuff on the outside of the box. Is it in the inside too. Really don't want to pull mine out if I don't need too
I would bet money it's not on the inside, I haven't ever seen them spray the inside but they just keep it on the outside for durability
Is it supposed to be flex sealed
what the name of can
Can you paint on that liner?
my friend Jesse made that jl box its the high output box. my friend took 3 months making it exactly the same he went in the store took photos of it and measured the port went to bass box pro and made it! it sounded good. i just cant see spending the money on jl.
STOP SCROLLING ✋🛑Rust-Oleum Rubberized Undercoating
is what it's actually called. Available at Walmart and advance. 5 dollars a can. Will buy!
Does it work?
Million yr old question... For better bass for 2 12s at 1ohm 1209 watt mono... Sealed or ported box??? Right now it hits hard af rn... Does ohm affect bass? I know rn 1ohm amp and dvc subs wired for 1ohm gets the most power out the amp if not mistaken.. Sorry im 37 last time i hooked up a system i was in my teens had a hi fonics 3000k watt amp with the analog needle gauges built into it
1ohm gets more power from the amp but the voice coil is less stable the lower the ohms. Basically it means the speaker wears out faster
Bro what about using actual sound deadener like dynomat? Would that work
That works but it's for a different goal. I used both.
ive heard if u use a bigger box it makes more power is this true i have 2 12" massive subs pushing 1,000 watts each n a 1,000 watt amp pushing my 2013 accord can someone help me out please
Is this flex seal
how to set da amp for smoothly loud
lmao i love you man
This was a long time ago but thanks
@@stinkyarmpitbass6259 Just the way you explain stuff, so straight forward and no bullshit hahah
@@soundofbass6842 that's awesome man, I appreciate it
Can you leave a link of the spray can so I know what it looks like
My sub is small so I really need this lol
Just Walmart rubberized undercoating
forgot matts pro audio fi audio and all the others that are kick ass still made in usa where bass was invented and also the class d mono amp lol
Stinkyarmpitbass , I have a set of dark audio nko 12s . I'm running a daul sealed box that is in the shape of a L to allow the box to sit in the upper shelf of a crown Vic trunk. It has a angled back/top almost like a fast back look to it. Its at 1.486 after sub displacement . my question is ...
How do I figure out what damping will do my over all tuning? Right now I have the subs crossed at 85hrz and it seems to blend well but I think the higher hz might be inducing some ringing in the box or the actual cars bracing sheet metal. I would like some input . I'm not a big fan of Polly as I smoked a sub from it sucking it in and I had a sub get hot like it didn't clip or short, it got hot as I tend to run sealed enclosure s.
Rob Sorgdrager to each their own but for me I cross mine over at around 60-65 hz, I like that low bass. Damping your box has a ton of variables and outcomes. A lot depends on your goals. My SPL metering buddies reinforce and deadened to meter high bit I have friends who prefer specific woods while building for specific resonance characteristics and goals. There's a lot to it and I'm far from knowing it all.
Running sealed boxes in the trunk of a vehicle is kind of defeating the purpose of having sealed boxes. You would be better off running ported band pass boxes with the ports coming through the rear deck so as to pressurize the cabin not the trunk. You should also dynomat the shit out of the car. It's the biggest single improvement you can make to the overall sound quality of your car audio system. Superglue all of the emblems and badges to the vehicle as well. Keeps them from rattling every time the base hits. My 2 cents.
Jack A. Lope I feel you on the sound deading. The porting I've thought about it but am worried about port noise . I'm not to savy with the ports yet.
Every can of rubberized undercoating I've ever gotten has been shit. Mix and pour fiberglass resin into your box. Let harden, turn then repeat until complete.
I agree but not everyone has the know-how or time to do that. That definitely works great though.
To the inside or outside?
Nah. Polyester resin isn't going to dampen the box any and if it is applied to any thickness without using fiberglass mat or cloth reinforcement then it is almost certainly going to shatter once the box starts flexing and it separates from the MDF.
I suppose one could brush on a thin coat to seal the MDF if you wanted to (might be good for marine use) but that wouldn't have much effect on the sound of the box. If you want to use fiberglass then build the box out of fiberglass.
Jack A. Lope i used gorilla wood glue on my box idk if it help much, but I figured it would give it a little strength and seal the corners.
StinkyArmpit Bass, You said Sundown DD Banda and what was the third one? It sounds like you said trumps but i cant make it out.
Will this work on plastic sub boxes under the seat?
Try adding polyfill inside the plastic box that's a simple start
Tnx S.A.B.
thank you
hey don't just take people word for it..just try it for yourself it made my Subs significantly louder!.. probably won't do much if you're running a competition set up.. but if you're running a budget build like me with prefab boxes it worked!
If you're running a high wattage comp setup you'll experience even more gains than a normal setup. I can't say how many DBs you'll gain but the concept is dealing/hardening the surface of the enclosure walls/sides. This is beneficial in any box. If I could make a box out of steel I would lol!
+StinkyArmpit Bass I'm sure you're right! I just figured the comp guys would be dealing with more complex designs. . glad I decided to try it. it's a must for my boxes now
+Xavier Mcfadden yeah the Strictly competition guys are on a completely different level when all they do is meter and try to hit high SPL scores. The majority of them build a wall in the car, literally a wall in their car sealing off the front from the rear and go with a Fourth or sixth order design enclosure. You should check out those enclosure designs and see just how much air they move. It's pretty insane
How good are those Massive Audio hippos?
Daniel Pottenburgh they are awesome and they fly below the radar. Not too many people know about them and I had zero issues with them. My opinion of them is that they are super efficient and are loud but also very musical. Before box rise and other variables at one point I was running around 3500 W to each one. They ate it for breakfast and spit it out for lunch.
Get American bass HD 8
Would the.rhino liner work the same inside the box?
yes
Can that be used in place of dynamat?
I've used both, both are different but effective. For raw sound deadening on metal and in door panels where you have room to deaden I'd used the sheets, in difficult places I'd use the spray.
what is the name of the rubberized undercoating spray from autozone??
No joke buddy I think it is a literally called rubberized undercoating
+StinkyArmpit Bass that's the name of it.
bro should do a Rumbler style box. fucking unbelieveable
I found it...... I'm try it out
Awesome man
StinkyArmpit Bass what's the brand name of the rubberized coating?? Thanks man
do you have a Spl meter,If you meter that one 8 inch sundown, spraying that in that hard wouldn't give a harder surface,now resin with hardener,would. that an accountant spray doesn't get hard enough to stiffen the wood that's just for looks, use your SPL meter and test two boxes one with the undercoating spray in it versus one with resin and hardener in it and use your SPL meter and you will see.
The JL W7 is the main driver that runs a 3 ohm load! The W6 V3 of course runs dual 4 ohm coils, as well as the other models that either rely on dual 4 ohm or even 2 and 4 ohm single voice coils! Another big thing to mention is there are two types of wood used by box manufacturers, one is made of small 1/8" wood particles and the higher quality wood is made of particles that are about 1/10th the size! Both are often labeled as MDF, but one is better suited for cabinetry and the other is often chosen by companies for it's price!
When it comes to actually applying internal sound deadening to a box, they do sell brush or spray applied products that are car audio specific! Like Lizard Skin, ALS liner, Liqui-damp, spray-dead, spectrum by second skin and others that would be more appropriate to apply inside a subwoofer box, plus they are often non-toxic, non-hazardous, and non-flammable! Yeah it does cost more, but rubberized undercoating is often applied to the under-carriage by dealers to prevent rust only and is easily scraped off with your finger even after being dry for months, as you said fumes are hazardous and it is toxic "Petroleum based" contains Asphalt/Synthetic polymers, Toluene, Methyl Acetate and Propane -"Green House Gas" consisting primarily of Methane!
Purchasing a custom built box with proper bracing that is subwoofer specific would prevent a box from flexing! Plus the True MDF which most audio shops use for installs actually is very solid and is designed to have a shiny surface that is only impermeable and becomes altered by moisture exposure! They also have choices of thickness and if you ask for 1" you will get 1"! Basically what you are seeking to do is adding density to a subwoofer box, it won't prevent flex! Which Audio specific dampening material will do, just at a slightly higher cost than spray can versions!
The benefit of buying real audio specific dampening is you can use the excess to apply to the vehicles panels at a cheaper cost than adhesive backed brands! Remember Dampening materials for car audio will not prevent frequency resonance, only control and manage it so it is less noticeable! But the more power "Force" you apply to those surfaces at the natural resonance frequency the more noticeable it will be even with dampening material! It is Physics!
Just search Resonance! But for me, I will stick to JL Audio!
LuxorVan this deserves the comment of the century. Feel free to comment on any video I have ever posted!
StinkyArmpit Bass Glad to hear it!
LuxorVan
LuxorVan I’ve went thru 5 sets of w7,s and I finally bought 12zv4s and I haven’t had a issues always on hit never quits unlike my Jl’s lol j
I've had both the SA 12s and 15s and they're one of the best bangs for the buck! I loved them. They're very clean for that price point, they get pretty low and they're ruler flat other than one small bump around 46hz on the analyzer, but I picked up a 13w7ae since I already had a 1000/1 And I was amazed! Now I'm running two 13w7 and two 13w7s along with a 300/4 and kappa components through a pioneer 80prs and couldn't ask for more!
So did you do the port as well? I'm going to try this on my re audio sex 12d4
I always do the entire inside of the box
cool thanks for the reply got my box out back drying so I will try it out tomorrow
@@elijahbaker5595 results?
Can you use sound skin sound deadener ??
Manases Lopez maybe, I haven't used that before so I'm not 100% sure
why not fiberglass the whole inside
Where's the other video
What other video?
Is that stuff like plasti dip?
SoggyFries No, although they are both rubber based The sound deadener is extremely durable and can take abuse.
i see, well off to da home depot. Thx, sir!
Hey bro i been dealing with a prob n cant get no answers from noone ...like noone wants to tale the time to help plzz help
What 🤣??
Flex tape spray in the aerosol can works
woofer price
Of you want it louder try some actual port area that port looks tiny.
Take a quick read on how MDF is made. It is not porous.
If it's not porous than how does water absorb into it?
heavyset0223 ummm its porous. Re-read
should i port or no port?
Port always port for powerful subs. Let that b!$# breath
What if i made mine out of concreate
Does the entire inside of the subwoofer enclosure get coated if you just point the can into the the hole and just spray
The entire inside of a subwoofer box and you could even do the outside if you wanted to
I don't think that's how that works 🤣🤣
A hippo nice food to eat
will plastidip work?
no, plastidip doesn't seal or harden
Show the rubber can bro so we know which one you used.
Would flexseal spray can work as well for this?
lolo ent i'm not exactly sure what Flexseal is but it could be worth a shot
What! u never heard of flexseal, haven't u seen tat infomercial of tat guy who cut the bottom of a small boat replace it with a screen patio door spray painted flexseal on it & went out on the lake with it?
I suppose so but really " who hasn't heard of flexseal common dude
even a good oil based house paint works. just as long as the air is free rolling out.
StinkyArmpit Bass Flexseal is exactly what you described, the "as seen on TV" version available online and at walmart.
No numbers to support your theory?
Nigel Varnado no numbers, I didn't have an SPL meter with me. It is audibly louder though, it was a very noticeable difference.
gained 0.2 db for my setup on the meter. Doesnt do much but every tenth counts i guess.
.2 just by doing this? I've seen .1 win comps.
yeah its an uphill battle after 150 bro. Just soo much diminishing returns after a certain point. I'll do whatever it takes to get 155 sealed tho.
it did cost a lot to do a 24 cube net box for 4 18s lol.
Jeff DaChef years ago I was at 155.9 db with 6 12" pioneer premiers. Only had 400w going to each sub by way of Alpine 800w amps, 1 amp per 2 subs sealed in my 02 envoy (Convoy) the key is Dynamat! Its worth every penny.
Hehe, funny, one would say 0.2db is nothing. Now I see it can be worlds apart, with different angle of view. :-D
how much for the subwoofer? $$$$$$ retail
86 STREET The Sundown SA8? You can get them for around $170ish
StinkyArmpit Bass thx for the info I'm subbing. cheers
86 STREET No problem buddy! Thank you and check out the new Sundown X8 series, HOLY SHIT!!
Did you notice any reduction in output?
I did the same thing to my box, and It seems to have reduced output except for the tuning frequency.
granite and cement are used in very high quality subs
I AGREE BUDDY
Uh this is bad advice. First don’t use pre made boxes have a box built to the parameters of your drivers so that you get the best out of them. Install is the most important part without that don’t matter what you got. I had one built for my DC lvl 4’s by cherry man customs it’s built like a tank and looks sweet, neon’s, lexon windows for looking at those 3 big magnets 🧲! It’s a nice box and built to my specs. I think it was $850 shipped to my door but it was well worth it. It makes the system. So yea don’t do this just have a pro do it right or do it yourself it’s not hard even if you can’t do computers and that stuff you can have them done for like $35 on SSA. Aaron will sketch you up whatever you want and if you talk to some forum guys they may do it for free or share previous designs they know to work for certain subs and cars.
muy buenas
Gracias
i had 2 jl audio w7s and when i had them people always asked how did i get my subs to sound so good and looked confused when i had them bumpin and they slammed with that beautiful clear smooth sound and jls bass is way deeper sundowns bass its just harder but not soothing. but i did switch up and got 2 sundown 12s and they slammed way harder the bass was just hard but did not sound no where as good as the jls did and even tho they were more powerful they did not sound as clear and smooth thats why we pay for jl audio and like them they hit super hard with great quality. its funny how people hate on jls because they cant afford them so they dog them of course sundown hit harder there way more watts and rms powered and there for competition which sound like shit honestly. but i sold the sundowns and stayed with jl audios because i missed that amazing sound and its different from any other sound of woofer i've heard but I hear the orion hccas the new ones sound like jls but way louder so im thinking about getting them. but anyway people are stupid when they say jls aint as loud as sundowns and keep comparing them with other woofers that are for competition there different speakers and some are to slow to know jls are sound quality not made for competition but they also can break your windows and do the hair trick there amazing but i do think there overpriced and i agree with that they definitely need to knock it down a bit.
5 people do not realize the concept
It's 19 already. Care to explain? How much dB have you gained? Measurements?
+Mr. Krios This was my buddies box and was in his daily driver and we did not meter it.
+Mr. Krios i'm also not worried about the fact that 19 people may have a different opinion on the subject or might not like my video. Lol welcome to the Internet.
+StinkyArmpit Bass 25 now
+Luis Chavez it could be 5000 but wouldn't change anything.