Enough volume for truck subwoofer? You've been measuring wrong...

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How do you measure for an underseat truck subwoofer box? What measurements do you need and how do you calculate the volume for a sealed or ported enclosure? In this video we look at the basics of calculating the approximate air volume available for a truck so that you can better pick subwoofers that will properly fit your space!
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24 авг 2021

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Комментарии : 208

@kylehuffman9694 2 года назад

Use framing squares to extend the seat line for the bottom of the seat. There's no need to eyeball anything.

@ah4800 2 года назад

Screw the framing square as the floor probably isnt flat. Use a level.

@modzbydesign 2 года назад

When I started building boxes, years ago, we learned to subtract the material thickness 3/4" x 2 = 1 1/2" from each O.D. dimension 8.75" x 5.75" x 13.00"x (55.00") to start getting volume!

@CarAudioFabrication 2 года назад

Works great for a square six sided box, doesn't work well when angled faces and notches come into play. As noted in the video the intent is to APPROXIMATE how much air volume we have to work with and we can then get more specific once we pick our subwoofers and make a real design. my math values for approximation account for typical material displacements. The problem is with the current lack of understanding for many they either A) get subwoofers that will never work properly in the limited space or B) get overwhelmed and just buy a pre-made box. The methods within the video allow for a quick approximation to avoid those issues.

@stanmondzelewski9253 2 года назад

I was taught the same. Also was taught with wedge (truck boxes) to add depth 1 and depth 2 together,divide by 2 to get a average depth. In this example i would add 8.75 to 5.75 divide by 2= 7.25

@farmeunit 2 года назад

@@ReEvoluion He specifically stated you need to know an approximate space to decide which subs you can work with, then get specific. If you start with the sub, and it requires more space than you have then you’ll get bad results. You can at least get a rough idea and tweak as you go.

@kylemiles9156 2 года назад

How can i stop vibration from 12 inch subs under back seat of 2018 ram quad cab to much vibration ...i have 1 12 inch sub ..1500 watts..amp 4 6×9 .. and 3 tweeters

@modzbydesign 2 года назад

@@ReEvoluion I see one person gets it, about subtracting the material thicknesses!

@ventronicscca 2 года назад

Easiest way to calculate wedge shaped boxes is to add long side and opposite small side together and divide it by 2. That will give u a value equality if that box was square. Use that number as the height then multiply the width and length as normal. Much easier and faster then figuring out a square and a rectangle. Hope that helps someone. Math can be a killer sometimes.

@travishill7873 2 года назад

As an owner of a crewcab F-150 I was excited for this video. I ran into all the issues you pointed out. I used the cardboard cutout method but on the framing for the box skeleton. Ended up fiber glassing the bottom and wrapped that up the curved back and towards the front. Then mounted 4 8" shallow mount subs up firing. They lose output lower than 35-40hz but adequate volume from there up. Great video. Can't wait to see what else you do to this truck.

@kingnut 2 года назад

Why up firing... forward would seem to make more sense.

@travishill7873 Год назад

@@kingnut Just came across this video again now that I've installed the LMI Welding seat lift. I'm redoing my sub setup to 4 10's instead of 8's. Will most likely go the front firing route this time. I did up firing due to the kids. I guess I'll have to come up with some kind of grill to protect them.

@rudolphwatkins1692 Год назад

2 SA CLASSIC 10'S 750 WATT RMS 10'S. WHAT'S YOUR SPECS FOR A 2020 FORD F150 XLT. I ALREADY NO I GOTTA RAISE MY SEAT 3 INCHES. HOW MUCH FOR A UNDERSEAT BOX DIAGRAM

@QuadDoc 2 года назад

Holy Wow Mark! That was brilliant!! I wish you were around when I was starting in car audio! All of the newbies now have a Very short learning curve because of professionals like you giving priceless advice for free! Thank you so very much Mark for all you do!!

@lazermae1452 2 года назад

Good day mark. I'm newbies to this car subwoofer thing. Just curious on what's the difference between sealed and ported enclosure(sound quality wise)? Thanks a lot

@ericschwacha7012 2 года назад

@LAZER MAE, ported boxes will always give you Deeper bass and will need MORE space than a sealed box(Sealed boxes are more for people who want a very punchy and if you have a good amplified aftermarket speaker system). I personally do installs and make custom boxes(always better than a ‘Pre-Fab’ box). All subs have specs on how much space they need for both sealed and ported box(which to dive deeper ,you can Tune your box to the proper amount of Hertz, esp, what your sub performs best at,). I always go with around 33-40 Hertz, anything under 20 hertz is ‘Subsonic and many amps have subsonic filters. So in short,if you want to have rolling thunder, go with ported. Cleaner and punchier bass, then Sealed is for you.

@lazermae1452 2 года назад

@@ericschwacha7012 thanks bro. Now i know.. imma kind of deep bass enthusiast guy.😄😄😄

@LC8FTW 2 года назад

The basic drawing that you're starting with there is essentially what I built for my F150. My box is sealed with 1.1 cu-ft volume, substantial bracing, filleted internal corners, with a single down-firing Rockford Fosgate T1S2-12. And I didn't raise the seats. When you work out the math and geometry, it basically converges on one solution that will maximize vertical clearance (of the driver cone) off the floor. With a 600w JL mono amp driving mine, my truck rocks!

@efunkyman6853 2 года назад

The best detailed explanation of how to build an under seat box that I've ever seen. Thank you.

@stevej6824 2 года назад

I love Crutchfield, I’ve been buying stuff from them since 1990 👍

@samueldevaney6675 2 года назад

I recently finished a ported under seat box for my F150. I built the port on the back side of the box, external from the mane chamber. It sits on top of the small step in the floor of the truck.

@masonjelvin6001 2 года назад

wish me luck, my buddy and I are doing his wrangler TJ. we’re getting pretty creative right now because we want to conserve all the space we can since we off road a lot

@96kylar 2 года назад

Same with my 4runner. My sub enclosure will be able to just be yanked, for the camping/off roading trips.

@94crazydon 2 года назад

hey guys, I have been adding wood thickness to get I.D. measurement for 30+ years. but lets be honest, most ppl that are going to build a box, already have the sub, and are now trying to make a box for it. which sometimes isn't cosmetically pleasing. my fellow Basshead.s will agree that Spl outweighs the looks. and yes, I too was thinking he forgot about wood thickness. but that's not what mark was doing. he starts with O.D. because cosmetics are his arena. it will look amazing. he can pick different subs, and have room to modify the I.D. if needed. smaller subs can surprise you if done correctly. I blow ppl's minds with my partitioned astro, 2 sundown x6.5.s in a center console I built all the time.

@ChaosAttractor13 2 года назад

I have 4 18’s under my truck seat. The seat is in my garage resting on top of 4x18’s still in the box.

@keydaniels 2 года назад

More and more options are becoming available for pickups finally!

@balazstoth3956 2 года назад

Great video! How would you recommend measuring air volume in a family van, where the trunk is sharing the same space as the passengers?

@v-to_godly343 2 года назад

Thanks once again Mark! The break down was on point

@CarAudioFabrication 2 года назад

Glad it helped!

@ericschwacha7012 2 года назад

@LAZER MAE, ported boxes will always give you Deeper bass and will need MORE space than a sealed box(Sealed boxes are more for people who want a very punchy and cleaner bass and if you have a good amplified aftermarket speaker system, which I still have with my American Bass 12” HD; 2000 underrated Watts rms in a triple baffled quintuple interior braced cause it is a 55lb Sub). I personally do installs and make custom boxes(always better than a ‘Pre-Fab’ box). All subs have specs on how much space they need for both sealed and ported box(which to dive deeper ,you can Tune your box to the proper amount of Hertz, esp, what your sub performs best at,). I always go with around 33-40 Hertz, anything under 20 hertz is ‘Subsonic and many amps have subsonic filters. So in short,if you want to have rolling thunder, go with ported. Cleaner and punchier bass, then Sealed is for you.

@russsmith9042 2 года назад

First of all Mark I'd like to say you do awesome work and you pay a lot of attention to detail and that's what I like .I need to get with you on building a subwoofer enclosure for a 2002 SVT Lightning behind the seat course it's a standard cab or do a blowhole one or the other I need some bass man without my knees being in the dash. I don't think it's possible without doing a blow hole or blow through or cut through or whatever you call it I'm 51 years old and I've been trying to get it some decent bass out this truck since I bought it in 2002. I've got two layers of sound deadening material for the entire vehicle except the roof so I think that's off to a good start. Will you help me brother please?

@offthegridkain8170 2 года назад

I been wanting do a upgrade on my 2012 dodge Durango. what are what are my options and what can I put as for my base subwoofers and is there any designs to do under the seats and hidden enclosures

@pah150955able 2 года назад

I’m running the JL TW3 under the back seat..two of the 12”..and man they hit hard..not sure there is a better speaker for that

@emac800 2 года назад

I have a 2021 Nissan Titan crew cab, and after taking rough measurements under the seat, and researching a ton of 8in subs, it looks like the Savard Hi-Q 8s are what I’m going to get. Four of them to be exact. Their specs, both sealed and ported, will work under my rear seat. This video reinforced the decision I made to research speaker specs after determining rough air space availability, rather than listen to people’s opinion on which subs they like/would use. @CarAudioFabrication : Any chance you would consider making the sheet you use a printable PDF?

@sykamuru3451 2 года назад

I have a 2020 f250 and I just threw my 4.5³ft 24Hz box on the back seat with 2 kicker comp R 12s on 2 Skar skv2-1500.1Ds strapped to 3,000 watts @ 1ohm paired with the LC2i Pro

@kingnut 2 года назад

Such a good video for learning. Thank you!

@lylegoodluck 2 года назад

Hey Mark. I got a question.. I have a 1.75cf enclosure tuned at 36hz.. would a pair skar svr8 or a pair of skar evl8 be best for that enclosure?

@basstech714 2 года назад

Good information and explanation. Always enjoy your videos. I’ve built many enclosures and it’s good to see how other people do it.

@R1D9M8B4 2 года назад

You are absolutely the best. I wish I could share with you what you have inspired me to do.

@andrewwebster6221 2 года назад

Any thoughts on 3 or 4 jl 8w7s in a ram megacab downfire ported behind the seats?

@szki272 2 года назад

On boxes like that I always took the long side of the wedge and the short side added together then divided by 2.

@CarAudioFabrication 2 года назад

That works too but the reason I broke it into seperate shapes is so that folks understand you can have a very complex area but just need to break it into manageable shapes to calculate an approximation

@drgreenthumb2339 2 года назад

Im going to make dual 8 inch woofer box for 2014 Silverado double cab with seat lift. Thanks for video.

@raulfoxman1925 Год назад

How did it come out. Any pics

@01hondascott 2 года назад

My question before i even begin this journey is , can i get something that doesn't take up all the space in my back seat thats going to sound as good as my 12 inch orion xtr in the back of my suv. Ive half way thought about forfeiting the " 40" in my 60/40 split and just dropping in the 12 from my suv but i don't know if i want to lose that space in my back seat.

@cisnerosepy77 2 года назад

the best man in car audio 👏👏👏👏🔥🔥🔥🔥🔥🔥

@mickrambo6787 2 года назад

My k10 has a janky lumpy floor under the seat. Used fiberglass bottom to match it. Put some plastic down and fill with water before putting the top on to find the volume. The box is also what holds the seat in the truck since I removed the frame for more space. Not sure of the legality of that but w.e lol.

@ethanericsson888 2 года назад

Try a seat lift kit. I did one and can fit big subs

@colinshrom3704 2 года назад

I’m doing 2 10”s in 1.5 cubic ft hopefully it sounds good!!🤞

@BSTatonka Месяц назад

Thanks for the video. What material do you use for sealed boxed and what is the width of the box? If it’s 3/4 do I subtract 1.5 in off all sides before calculating the volume?

@Brebear6971 2 года назад

Have a single cab Dodge Ram have a box that is 4ft 9in. 12in bottom 5in 1/2 top what is the air space

@scottfree6479 2 года назад

I had 2 shallow mount 13.5s in an f-150 years ago and they thumped. Keep seeing lots of 6 or 8 inch subs but that seems small to me

@jasonguerra4829 9 месяцев назад

With the limited airspace, what subs would you run? I ordered my 2024 F150 and I love bass. I currently have 2 8” in my 2016 F150. Of this was your personal vehicle what would you run? Thanks! As always great work!

@chuyrod2 2 года назад

caraudiofabrication what can i fit on my gmc sierra 2021 crew cab ? 8" subs the ones i want require 1.13FT cubic can i fit 3?

@gerardsherred8579 2 года назад

Great video. How much space should I leave open if I am using a down firing sub?

@CarAudioFabrication 2 года назад

People will say "half the diameter of the cone size' but you simply won't have that luxury without losing a ton of air volume. Usually cone excursion plus 1/2" to 1" works well.

@bsmbB 2 года назад

As long as you have enough air flow out from under the box since essentially you are turning it in to a 4th/6th order band pass by downfiring which is why typically down firing boxes sound better when they are anchored properly imo

@Memo_0215 Год назад

I have a question, I have a subwoofer box and the speakers are shallow subs I recently bought some ds18 hight escursion but sadly they are few inches from fitting can I re size the box?

@nickgivens5131 2 года назад

I have the same f150 in the video, what are the pros/cons of going down facing vs front facing? Pros/cons of sealed/ported? What’s the best set up for this truck in your opinion?

@CarAudioFabrication 2 года назад

Best will always depend on your application. You can get more air volume with forward firing, but are limited to subwoofer size. You can get larger subwoofer size and will need to do a shallow mount subwoofer with downfiring but will lose air volume with the sub being spaced off the floor. I don't want to give away what I intend to do quite yet, but stay tuned. ;)

@nickgivens5131 2 года назад

Can’t wait for the next video!

@speedy_sp 2 года назад

Are there benefits or disadvantages of a down firing sub vs up-firing?

@Half_Gassed 2 года назад

I believe to obtain the lower bads note into the cabin rather than into the floor, where in retrospect is immediately leaving the vehicle. Where with them down facing, that bass note shoots up into the open cabin amplifying more before leaving the vehicle

@bige7061 2 года назад

In both my Silverado (center console replacement box) & F150 (under rear seat) I got better sound down-firing the subs. The cool thing about the D-F box is you also feel more of the bass through the seats which, if nothing else, makes a good back massage. Lol

@stev7373 2 года назад

Nice explanations

@MrJunior6939 2 года назад

Center console sub will be awesome 👏

@topnotchcontent Год назад

I've been reading Crutchfield Magazine since the mid 90s

@horeR34 2 года назад

Question is it possible to create a sub box that fits under a JK wrangler 4dr rear seat?

@dreci3001 2 года назад

Good luck with that. I'm struggling with having a single 10" in the back of a 2dr JK, hung on the tailgate facing forward AND have carry space left over. But I guess if you modify the rear seat and fit shallow mount subs it might work, a lot of work though. The rear seat in the JK detaches in a breeze, but might not have enough space even into the seat to securely fit subs. P.S. BMW X3 E83 have dual 8" shallow mount woofers under the front seats in relatively small enclosures acting as subs, might try to DIY something similar.

@Theferg1 11 месяцев назад

Great video and information I recently discovered your channel I'm definitely a new sub I have one question I am working on my son's Chevrolet S10 extended cab 2002 model and he's coming back home from the Navy and I'm going to surprise him with new seats carpet nice system in the truck so what would be your suggestion as far as the box size since there's no back seat and I'm going to be using 210s unless you suggest two 12s? Thank you

@AndrewShingange 3 месяца назад

You're a God-sent, dude 😮‍💨😮‍💨😮‍💨🙇🏾‍♂️🙇🏾‍♂️🙇🏾‍♂️🙏🏾

@Jerry4baker 2 года назад

Jl audio 10tw3d8 are great choice for most trucks they are loud too

@focusinc4266 11 месяцев назад

I have a challenge for you. 2009 silverado hybrid. I have two 10" kicker shallows or a 13.5 JL shallow in mimd.

@adrianp2007 2 года назад

I have a sedan with my 12 inch in the boot/trunk, my middle rear seat fold forward leaving an opening into the boot/trunk. Should i have that open or closed for louder bass and why? Will it make a difference and why? Thanks

@RAW_Reality 2 года назад

Leaving it open will be one less (major) thing between you and the sound, so that question pretty much answers itself. Though it won't be "louder" so much as it'll just not be filtered through your seats as much, so it'll give the impression that it is. Furthermore, a sealed enclosure won't tonally change much, but with a ported one you might notice a slight tuning difference between open and closed.

@adrianp2007 2 года назад

@@RAW_Reality thankyou. I forgot to metion the 12 is in a ported box.

@RAW_Reality 2 года назад

@@adrianp2007 no worries, glad I could be of some help. Enjoy.

@extspence 2 года назад

The Ram Power Wagon under seat area is more like an obstacle course.

@fryloc359 2 года назад

I wonder if it's like my crew cab Chevy?

@caddyguy5369 2 года назад

I just took my back seat out... ;-) Only temporary to make a box on hand work. Thinking of trying to get bucket seats and put it in the middle. 10" Infinity Reference. It only requires 0.5 ft3 in a sealed box, but mounting depth may pose a problem with under seat. Thinking of trying to get bucket seats and put it in the middle. If you're familiar with a first generation crew cab Colorado, that might be a bit much of an ask with the shape of the floor in the back.

@Memo_0215 Год назад

I have a subwoofer box that had 650watt kenwood speakers, I just bought a 1000watt ds18 subwoofer hight excursion and they do not fit..by an inch. Is it fixable or I have to buy a new box?

@billsmith8795 2 года назад

Got the same truck. Tried the underseat method but damn basshead problems made me take the backseat out.

@CarAudioFabrication 2 года назад

Haha sometimes it needs to be done.

@davect01 2 года назад

Proper expectations is key. How much space are you willing to give up for the sound. Trucks are especially tricky as there is no hatch/trunk. My first build in the 90's was in an S-10. Limited space was an ever frustrating thing but having an extended cab helped a lot

@CarAudioFabrication 2 года назад

Well said, definitely agree that trucks are the most limiting, unless you want to basically make the rear unusable and delete the seat or go to a blowthrough, which of course then loses capacity for cargo in the bed.

@davect01 2 года назад

@@CarAudioFabrication Interesting to see what you come up with. I am curious how many trucks you get in for builds?

@timothyhergert4199 7 месяцев назад

What subs got out into this truck ? I have the same truck

@MichaelJones-ok4yu 2 года назад

I wish the previous model of Ram Trucks didn’t have those “storage bins” under the back seat….it limits the type of subwoofer boxes that can be used or the type of subwoofer boxes that can be built

@riothero313 2 года назад

I'd do a single Polk Audio MM 1242 in a ported enclosure. I'd tune it as low as possible and it'd be enough for me.

@mackanz206 2 года назад

I have a Avatar stu 1546 3000wrms in a 100L box tuned to 32hz inside my Ford ranger 1,5 cab. More fun than back seats.

@ray6808 2 года назад

I have a Honda Ridgeline and bought subwoofers kicker 12 inches with box that is custom made but I think I need to upgrade the quality of the box .

@kylemiles9156 2 года назад

U getting alot of vibration ..i am ..2018 ram 1 12 sub in custom wedge box ...vibrations are rediculous

@ray6808 2 года назад

@@kylemiles9156 yes but only have 500 rms so it is vibrating

@kylemiles9156 2 года назад

@@ray6808 yea im having same issue

@kylemiles9156 2 года назад

What is causing it i want to fix it so bad just do not know if it is the box..sub is poor quality..the truck ..smh

@single_cam9199 6 месяцев назад

I don’t understand why they don’t make 4 doors like an extended cab.you have all sorts of room ,a quality box that sounds really good that can play loud, room for tools,tie downs, car maintenance things, car soap,wax,detailer,leather conditioner,tire shine,windex

@shaukeki 2 года назад

12:00 in this section, I wish you reminded people that there is material thickness to be accounted for as well. The volume has been measured and calculated to this point as if the sub box is paper thin

@CarAudioFabrication 2 года назад

As noted the point here is not to design the full box, but just get a quick approximation. That's why we multiply by .8 to do a quick approximation that accounts for material offsets. The goal here is to get a rough idea which allows us to buy subs and then do a more intricate design later.

@innerjon Год назад

@@CarAudioFabrication ok now it’s time to do the specifics video on airspace no matter how long the video will be 😄

@pedro0224 11 месяцев назад

Now let's see you do a 2017 silverado double cab!!!

@pa-mn1go 2 года назад

Why not up fire? With some shallow 12s... I've had greater results up fire in ford's without any seat lifts or the encloser having a larger depth then the seat. I'd also use the speaker bar grills in tight places that just protects the sub from the weight of the passengers.

@untimelyballistics 2 года назад

Mark, or anyone who may have actual knowledge maybe you cN help. When using the formula V=the square root of P*R Should I use 1 ohm in this formula ( bc my subs are wired to 1 ohm ) or should I plug in the "actual .8" ohm that my subs read on the dmm?

@CarAudioFabrication 2 года назад

Use the nominal impedance so 1 ohm.

@3613jeremy 9 месяцев назад

Has anyone ran a single 8 inch forward facing rear or side ported subbox under their back seat I have the 11th gen f150 with hump and brackets in my way

@jose69mendez 2 года назад

From experience downfiring subwoofers don't sound good and unfortunately the surround rubs on the floor board

@JS-jv6rg 2 года назад

Wish every audio shop would put in this kind of detail effort and not just throw in a box and drill subs down to your trucks floor past the carpet on to metal, only to pierce holes.

@CarAudioFabrication 2 года назад

There are many shops that do excellent work but unfortunately not everyone is always willing to pay for it. So these cheap shops get by and make a bad name for everyone.

@FSXgta 2 года назад

How often do truck people use the rear seats?? Just put the box on the seats or remove the seats put in a proper box

@mikstr22 2 года назад

Just do a seat replace and make an upholstered subwoofer seat combo for more air volume. I’m thinking forward facing 10s, as many as can fit across would be good 😂

@CarAudioFabrication 2 года назад

Easy to say just do that but obviously not practical for most.

@hammbone1612 Год назад

Man thanks for this video. Just got a truck with a regular cab and losing it

@user-to7xi2gh4i 2 года назад

Please do a tundra double cab I think it’s one of the hardest truck to build with 4 subs

@CarAudioFabrication 2 года назад

Same math, just break it up into easy to calculate sections

@user-to7xi2gh4i 2 года назад

@@CarAudioFabrication it’s has allot of stuff on bottom of seat meaning brackets also. Very low compare to most trucks I have been a huge fan of u and even buy stuff from mobile solutions it would be awesome to see a build on a complex truck like the double cab with 4 subs I only seen one post that someone did with 4 sa 8 inch but looked very complicated would mean the world if someone like yourself can do a truck like the sr5 double cab lol

@davect01 2 года назад

4 Subs just may not fit. It's better to have two heavy hitting subs in a proper box than four subs in shallow box(s)

@user-to7xi2gh4i 2 года назад

@@davect01 I seen it done but rather see a expert do it

@user-to7xi2gh4i 2 года назад

@@davect01 as far as hard hitting subs can’t I doubt there is any that will fit Uber that seat it’s crazy down there lol

@bashns7743 2 года назад

I got a 2018 GMC Sierra crew cab and got a center console sittin on the backseat with 2 12 ZV5s and that shit pounds. I still have room for 2 ppl in the back

@theplatinumcaraudio 2 года назад

I like when people have an idea of what they want (2) 12's but don't have the room for them so you suggest (4) 8's. You explain that the 8's will sound better, be louder and perform better. Of course that goes in one ear and out the other. In their mind 12's= better no matter what.

@CarAudioFabrication 2 года назад

I know, its unfortunate.

@RAW_Reality 2 года назад

While only about a hundred other things factor into this conversation than simply "pick one over the other", give the masses something to actually chew on other than "uh, 'cuz I said so" if you want the message to actually resonate to them. Like the fact that there's more surface area in 4x8"s than there is in 2x12"s. Then again, sometimes what you're going for by "just" wanting the bigger subs isn't the concern... like meeting a spending limit, as buying and powering 4 subs that are adequately comparable to what you'd be able to buy while using "just" 2 subs doesn't usually end up being cost effective. It's unfortunate when people have an idea of what they're talking about but end up not realizing they could stand to learn something from whom they're talking about. But I do like the irony of talking about someone else's mindset while not being able to interpret thier perspective.

@fishrsa9046 2 года назад

Don't be afraid of trying a small sealed enclosure. I have 0.8 cubic ft enclosures for my two 12" subs, 146.4 dB on the meter. Won't be winning competitions, but I can do hair tricks and annoy people 3 blocks away

@jrockaz548 2 года назад

Lift the rear seats up in the crew cabs more space

@dougmasters3875 2 года назад

The rear seat relocation kits from LMI Welding are very helpful in getting a larger box under the rear seats to accommodate more or deeper subs. I had three full size 10" Alpine Type R subs under the seat in my 2013 Super Cab. The LMI kits are kind of expensive for what they are, but as far as I know the only place making them.

@davect01 2 года назад

Just make sure the regular rear seat passanger fits with the lifts 😜

@jrockaz548 2 года назад

Just buy some square tubing and fabricate your own brackets that's what I did

@crimson2822 2 года назад

Gday, just wondering what the best way of deciding subwoofer wattage is… planning on having 4x100rms 6.5inch coaxial speakers but no idea what wattage subwoofer I should match with this. Cheers

@brendangouws2481 2 года назад

I have a 8 inch silm but i only hear the high Bass but why...the box isn't to big or to small...it's length is 44.5 Cm... width 27.5cm...height 24cm so why??

@derfskittlers6125 2 года назад

Lots of variables to consider. Do you have the correct volume for the sub you have? Is it ported or sealed? Is the box solid and well builr?

@brendangouws2481 2 года назад

@@derfskittlers6125 yes but it's not in a car it's for my home theater but no mater were it is it only made high Bass

@brendangouws2481 2 года назад

@@derfskittlers6125 ported

@najdrazi_tatica 5 месяцев назад

What is optimal air volume for 12" sub?

@CarAudioFabrication 5 месяцев назад

Depends, if you need assistance with an enclosure design we can assist on our website.

@najdrazi_tatica 5 месяцев назад

@@CarAudioFabrication noup i dont need,i just want to know witch is the best choice to put on the spare tyre place,and that is not big...

@CarAudioFabrication 5 месяцев назад

It sounds like you do in fact need help. Again, not a straight forward answer, it depends on your application

@gakudzu7282 2 года назад

My 94 Ranger Ext cab will fit inside that F150 lol.

@danielstarr9037 2 года назад

Air volume for truck subs: not enough for what you want

@bkrgls 2 года назад

😂 IKR.

@froshouseable 2 года назад

There is an easier way than separating out the triangle. Just find that average between the two sides. 8.75+5.75=14.5/2=7.25xWxL=external volume.

@BIG_DOGG 2 года назад

That's exactly how i find this # 👍🏼✌

@20smgreen 2 года назад

I was going to mention this very thing.

@randallbaker9055 2 года назад

Oh how I hope alot of customers at the shop I work for watches this. I get that one often. I WANT 12s 15s and oh yeah 18s and it's tuff to have to try to say it's not in there best interest

@CarAudioFabrication 2 года назад

So hard to convince them. They always think it's a downgrade to go smaller when in reality it will sound far better.

@randallbaker9055 2 года назад

@@CarAudioFabrication it definitely is hard to convince people about that

@krazyman145 2 года назад

u shouldve show how to do the woodwork

@CarAudioFabrication 2 года назад

I have a ton of videos on my channel.. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-nnefb9SPp5c.html

@dgage1776 2 года назад

I just put it on the backseat. My daughter loves the bumps

@YOUTUBEPUNISH 2 года назад

What about a Chevy avalanche?

@Nene0529 2 года назад

I have an 08 and am trying to put 2 kicker comp 10 under the seat. I can only find boxes that have the minimum cu ft (0.8 per sub). Idk if it’s gonna sound good but I’m gonna give it a shot, if not I’m going to have to install them in the Midgate. I’m a beginner so idk too much.

@Bondovw 2 года назад

For most people buying pre built boxes the answer is 10 inch subs. Almost every one I have seen with 12s doesn't sound right. (Not enough air space for 12s)

@CarAudioFabrication 2 года назад

I tend to agree, but luckily seat lifts are becoming more popular allowing for more space.

@derfskittlers6125 2 года назад

Don't do seat lift if you have people in the back. My 6ft son almost touches the ceiling. If you need THAT much bass then just rip out the rear seats. Lol

@undertheinfluencegarage4361 2 года назад

Just installed a LMI lift kit in a '15 Ford SC. I'm 6'1" and have several inches of head clearance in the back. Head room is not a concern if anyone was worried about that

@crisitanc5666 2 года назад

What do you recommend ported box up Firing or down firing enclosures

@Bondovw 2 года назад

@@crisitanc5666 When you are working without a lot of air room under a seat sealed is definitely better. I have my 10s facing forward and it sounds really good.

@MrDjscotteb 2 года назад

Why not take the front and rear and average the 2. front plus rear divide by 2. Then multiply width and height to that number? Save a step

@MrDjscotteb 2 года назад

So after wood you only have 2cuft net

@xXYannuschXx Год назад

You really dont need a large subwoofer, I recently bought a JL CP106LG, which has a 6W3V3 in it, for my hot hatch and running it with a Mosconi Pico 6/8 (which has 240W for the sub) this thing easily shakes the entire car and goes down to 30hz.

@craigguynes1613 2 года назад

Great... simple... now explain to everyone how to calculate in the factor of the cab volume of the vehicle for optimum efficiency, since, you know... you’re a professional and all.

@titosalaiz4910 2 года назад

Im surprised you didn’t use a seat lift and put two 8s

@CarAudioFabrication 2 года назад

Who said I'm not?

@derfskittlers6125 2 года назад

Lifted my seats about 1.5 inches to fit my custom box. Looks great but a 6ft person's head almost touches the ceiling. I use my rear seats alot so kinda regret it so,, I will change it eventually.

@bsmbB 2 года назад

For the side profile shape you have just go 8.75 + 5.75 × 13 ÷ 2 and that gives you the area then × 55 for vol