No Other Design Sounds Better Than This - Infinite Baffle - 8,000 Watt Test - Part 1

Checkout this infinite baffle car audio install, for an 18 inch Skar Audio SDR-18 subwoofer. This is the best sounding install I've ever done.
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American Bass XFL12: amzn.to/2S8OlRX
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Massive Audio Hippo: amzn.to/34rG01g
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#skaraudio #sdr18 #infinitebaffle #budgetbasshead

[@CoquiAudio]

in Puerto Rico 80's we use to do that a lot too sound just as good 😊

[@Change4ADollar]

I remember back in the day, I used to do the free air systems like this using the kicker subs. It's good to see something like that being done today. I haven't seen this in a long time...

[@kfmeden4514]

My pops always talk about the 2 kicker free airs he had in his 79 grand prix... Would love to hear how these sound in person

[@Change4ADollar]

@Kfmeden Man they sounded good back in the day, nice and clean. Saved a lot of space too....

[@SCREAMerado]

I had 2 MTX "enclosureless" 15s (the grey and pink ones) in an infinite baffle setup back in the early 90s in my 2 door Chevy Cavalier... Ran off a Kenwood 821 amp. That thing slammed for it's time.. Ahh the memories bro.. haha

[@owens417]

Man I used to run 4x10s and 2x15s EVs in my cutlass, lol

[@Bobdodge72]

Then you got 8ohm.. or 2 8ohm subs wired 16ohm.. it's not the sub.. but the amp.. Ik old video

[@johndeleon713]

Great idea when it comes to a seat down trunk build.. fantastic job brother.. not only did you save your trunk space for when you need it but you also saved a ton of time not having to build and tune a box, or having to buy materials.. bravo 👏

[@BudgetBassHead]

Thanks 👍 This was simple and LOT more impressive than expected.

[@theonetazman]

I like it!

[@wesleywilson4388]

@BudgetBassHead wus the name of the song?🔥

[@michaellazenby6712]

​@@BudgetBassHead what did it cost? Thinking of getting bk in the game been out since 13

[@BudgetBassHead]

@@michaellazenby6712 The scar audio SDR18s are less than $150 a piece

[@byronn.2885]

I did 4 12” Fi IB subs in a 90’s Cadillac Fleetwood using this method. I went way further though and cut the entire rear deck out and built everything up with MDF and use expanding urethane foam to fill the quarter panels to seal the trunk from the cabin. It played lower than any other system I ever built and only needed 500w per sub. Still my favorite build ever. Not many people know much about infinite baffle designs and there advantages. Well done.

[@onesikm3]

Wow you crazy just my type gangster shit 😍

[@Sebastian-vt7fe]

IM TRYING TO DO THAT EXACT THING RIGHT NOW!!!! ANY IDEAS OR TIPS PLZ

[@byronn.2885]

@@Sebastian-vt7fe really depends on the car and your fab skills and size subs

[@K-Effect]

Way back in 2002 I build a infinite baffle with 2 dvc 100w 12” Realistic subwoofers in my 90 Mazda protégé. It was loud, accurate and clean. Ever since then I’ve always been a huge fan of infinite baffle and T-line builds. With the infinite baffle build you hear the subs not the box

[@jerryloradrifter]

Fraid the Radio Shack Realistic days are long gone. These young folks these days don’t even know about that magical place.

[@robognu5000]

This really takes me back! Over thirty years ago I did this in a Nissan pulsar with a couple of cheap 12” Crunch. I used a plate that was made for a Camaro and it just happened to fit perfectly behind the back seat. I never even bolted it down lol.

[@CharlesK441]

I did an infinite baffle build when I was young. Wasn't rattling the car but it played really well surprisingly.

[@1HeyItsBoB1]

I've done this in a civic with the 15" version of this sub, a pair actually. On about 300w I was quite impressed, even coming from a 5kw 18" ported sundown setup. Next up I'm doing 2 cheap NVX 15s IB in an Accord. Well done, sir!

[@BudgetBassHead]

Thanks for sharing

[@oglvche]

looking at this video, when i’m finally over my hard hitting 15 in a huge ported box, i’ll definitely try this & get the most out of my 15’s SQ on clean power! i’m sure you purely hear the sub frequencies in the music and no extra rattle or tones!

[@MARICELAHUERTA-PAZ]

I HAD A BAFFLE BOARD DESIGNED PERFECTLY OUT OF CHEVY CAVALIER FROM THE 90’s. FLIP MY SEATS DOWN AND SPEAKERS WERE BEHIND SEAT . BANGER

[@brandonsealey4511]

This is a true old school setup. I remember a buddy of mine ran 2 MTX Blue thunder 12" subs in an infinite baffle setup in the back of an old Cavalier - sounded so good to my 15 year old self lol.

[@Okicombo]

Brings back memories from the 90's. Very cool. Keep being you. 👍👍

[@G.W.G.3]

I think since you don't need all the wattage that your amp puts out, running the subs at 4 ohm load would greatly help your S.Q. because most amps run there lowest distortion at 4 ohm... Take the time to completely seal around the edges also. Good video!

[@wilsonrawlin8547]

Agreed. Takes out that strained sound from the bass/music.

[@jimhanson8370]

@@wilsonrawlin8547 We are talking about subs here, todays monoblock amps are meant to be used at 2 ohms or below, running at 4 ohms is a waste of available power, He is running this at 1.2 ohms. nobody wires subs at 4 ohms??

[@wilsonrawlin8547]

@@jimhanson8370 Not true at all many SQ people run at 4 ohms for cleaner sound. BTW I didn't same a damn thing about what Ohms to run your monoblock subs at.

[@theurbanartist775]

@@jimhanson8370 not true, the car audio shops always wire systems up at 4 ohms. I didn’t learn about 1/2 ohm until KZbin. And I’ve had sounds in every vehicle since a teenager. I’m 47 now 🔊

[@drewjohnson4794]

​@@jimhanson8370 What are you smoking? Nobody does 4 ohms, unless they're doing 4 ohms. How many amps have you burned up?

[@ericperry72]

As a SQ guy I absolutely love IB sub setups even over a sealed box. I bet this sounds amazing

[@devanjames877]

Hey would this set up be better than 2 sa 15’s

[@jmohammed5487]

Why is infinite baffle better for sq?

[@QuezJ81]

@@jmohammed5487 Flatter frequecies across bass bandwidth. Less peaks.

[@hotdog9262]

why would IB be better.. wouldn`t the trunk rattle

[@hotdog9262]

@@QuezJ81 that`s what you get with a sealed box, id be very surprised if a IB would sound better then a sealed for the vast majority of cars

[@less5406]

Considering how friggin huge even the smallest sealed box is for these drivers, I'm not surprised at all this worked so good. I've done this before WAYYYYYY back and usually had really good results. I would have gone all OCD to make sure there were zero edge leaks and mounted a panel under the rear deck smashing a thick piece of foam in between just to make sure there was no edge leakage. Good job 😁

[@jerryfoster3123]

OMG!!! That sounds so amazing to my ears. I plan to do a set up similar to this in a 2007 Chevy Cobalt sometime soon. I do a lot of traveling and love to listen to my music while doing so. This kind of setup will make my travels so much more pleasurable. The bass wasn't overpowering at all. That's exactly what I wanna have going. Highs, midrange, bass, and finally the sub bass. All working together. Thank you so very much for the video.

[@robnivens9671]

I think you did an amazing job showing the difference between SPL and SQL ultimately it’s about the driver and what they wanna hear and you have give a demonstration of just that good work

[@BoringRanger]

It's always great to seeing other car audio enjoyers tinker and play with their setup(s). Testing, tuning, tweaking minute things.

[@BudgetBassHead]

Couldn't agree more!

[@TurboJohn74]

Did this with two Chevy Novas , the mid 70s sedans. Worked out great. Used double thick baffle, bolted to the metal lip, rear deck braced up as well. Lots of dynamat.

[@johncastillo4228]

I absolutely love that set up. I'm also a sound quality guy as well. I bet it sounds KILLER!!! Great work Sir! 👌🏽👍🏽👊🏽

[@v12alpine]

30 years ago I did a IB setup with a couple pioneer 12's in a accord. the main issue was rattling the crap out of the trunk exterior. With the same subs in a 4th order bandpass through the rear deck and it was the most amazing experience. Literally raise your hair with the sunroof open and no rattles on the car 20-80hz. Can't compete with your trunk space though!

[@phila8160]

Seal the sides and dynomat the rear deck to close all the holes and will sound even better. Looks great!

[@wtfngarage2082]

Facts

[@vinnyaudi912]

I ran a single 18" Fi BTL N2 in an infinite baffle setup in my Audi s4. I agree that infinite baffles are by far the best sounding setups .

[@RonnieMacJr69]

Love infinite baffle. Only did it in a vehicle once and it was awesome. Sadly that vehicle was totaled right after I finished the build by fully sealing the baffle with spray foam. I didn’t get to video the final product but there’s a short clip of it unfinished on my channel.

[@gregphillips.1312]

My Brother made a "Stealth Shelf" in his 1983 XR4i, basically an Infinite Baffle using the Boot (Truck) space as the Box and fitted 2 6x9's, powered off a Clarion Headunit, this was in 1990 ish and it just sent me down the car audio rabbit hole. I'm still upgrading my daily rides as I replace them!

[@Sixfeetund3r]

I freaking LOVE my infinite baffle Image Dynamics IDMax 16"

[@csj9619]

You might could gain a point or two by sealing the baffle with spray foam. Line all surfaces with aluminum foil to protect carpet and such, then foam around perimeter. To answer your question, YES I would do this and actually considered doing it with those subs. Another idea I had was to do a B-pillar wall with 4 single 4ohm 18"s, such as Rockville RVW1800 or Dynavox 18"s. Woofers are about a hunerd bucks a copy and don't need a ton of power to get loud. Thanks for sharing, BudgetBassHead.

[@incredifunk]

Don't go to Rockville they're s***.

[@radfishguy6784]

Man I love watching 18s work. I need a set

[@BudgetBassHead]

I say, 'Go for it!'

[@radfishguy6784]

@@BudgetBassHead l like the way you think. Now just to convince my wife lol

[@philrab]

Never done infinite baffle, but my understanding always was they’re great for SQ, less power handling and raw db than other enclosure choices. Your results seem to match that. I’ve hit 135 on 500 watts before but I doubt mine would play as wide a range as an infinite baffle setup would.

[@BudgetBassHead]

100% agree

[@milesbachelor8747]

I have a box like so many others, works well but there’s always the space issue. IB is definitely getting a hard look. Beautiful and functional solution if you’re into SQ.

[@danielcarter7657]

Hell yeah! I love me some titebond 3

[@TimpBizkit]

Although a large ported box with a low tuning will sound similar with extra headroom in the bass extension, or just adding a pipe that treats the trunk as a slightly leaky ported box and have a 15Hz tuning. The low resonance won't cost you output up higher either compared to the same infinite baffle. Whilst you can use your trunk space, it will restrict the sound a bit.

[@velocast]

That trunk looks like something audio studio hidden but stills 95% functional!🌹

[@anthonybrown6143]

Bruh, your videos are always 🔥mane! Regardless of me doing this back in the eighties, I learn new things everyday fam. I love your video cause their very inspirational to keep me going forward in the car audio game.

[@diablosautowerks]

Love this, I did the same thing on my BMW, using EVLs 15s. Don't forget to mention that sealing the truck and getting subs with a qts around 0.60 for the best results.

[@RJSDZNS]

Makes me want to try this with my 12's. I'm not running near that amount of power, just a jp8 but just for curiosity sake. Great video, love how excited you sound!

[@BudgetBassHead]

This setup genuinely surprised me!

[@deamondanderson5078]

Sounds perfect to my ears. Nice setup. I want something like that in my 07 Monte

[@GrandCamino6]

I love the simple look in addition to the retained trunk space. That sounds like a win to me. I remember back in the 80’s and early 90’s that was a pretty common set up. Cerwin Vega made a sub specifically for this application. I believe it was the Cerwin Vega Stealth free air series and they had black surround instead of their classic orange surrounds.

[@xpert_kid_one730]

7i7í

[@chrismitchell3005]

MTX Eliminators

[@rickigunter1960]

Yes ..Yes.. I did that (cerwin Vega) in 1986 with a 1968 Camaro.. Rockford Fosgate power 650.. pioneer mid & tweet... with a Kenwood pull out cassette radio...fond memories

[@adammarsden2643]

Correct....I remember them particular drivers knew someone had a pair in a sealed box in a hatchback an it banged

[@ScarabChris]

My first car was a 1978 Monte Carlo. This was in 1992 and I did my system like this. I removed the seat back and mounted two 15" subs in a panel that was sealed as best as possible between the cabin and trunk. Old school "surfboard" amp at 500 watts for the subs and another 250 watts for the mids,highs mounted in a nice flush mount rack right behind the the subs in the trunk. This was in high school. I did a killer upholstery job on the panel so anyone that sat in my back seat leaned against the 15's and waffle grills. The shit banged hard! My Motorola "brick" phone would bounce on the trunk lid. When I rolled up to school or a house party everyone knew I was coming. The car was also slammed with 15x8 reverse deep dish KMC spoons, fresh paint and crushed velour interior! My car would peel those reflectors off the road as I changed lanes. LOL.

[@hugh_jasso]

This is a beautiful simple build! I've always felt like big magnets and high wattage is for loudness, so anything over 10k was for the professionals. For a personal build i focused on a quality full range sound at a decent sustained loudness that's not blowing out my eardrums.

[@uwharriebigfoothunter]

Works for me. The trunk closed is the box lol. And it wangs

[@theejoeylee]

Fantastic set-up!! The more you seal off the trunk from the cabin, the louder it will be. The combined VAS for those woofers is only 4 cubes shy of the impalas trunk volume. Shoud hit Fs of 24hz, & easily play subsonic frequencies below 20hz with authority!!

[@JasonWW2000]

To make it more functional you can put a piece of expanded steel mesh across the back (same size as baffle board) and some black grill cloth. Then you can throw anything in the trunk and the subs stay protected.

[@BudgetBassHead]

Excellent tip! Thanks.

[@Hayawasa]

It can also change the way it sounds , like filling up the trunk with luggage would. Decreasing airspace. Could be better could be worse? Ive never had that car or those particular subs so i wouldnt know. The mesh and cloth would allow air to pass through, but at a much slower rate.

[@JasonWW2000]

@@Hayawasa No, the expanded steel and cloth has no effect on the flow rate or sound.

[@robertharris3404]

I need to do my Acura like this

[@Hayawasa]

@@JasonWW2000 you have tested this and know 💯 that it wont? I have and aside from what i said the mesh can put runs in the cloth over time from air making the tightly streched cloth vibrate against the metal and unless you attach it in a permanent fashion to the trunk metal its gonna rattle like crazy

[@MKMitten65]

I've done that in my home before. The quality of bass is like none other. 2 15s were mounted in my ceiling run by an Adcom GFA-555. :)

[@ChristopherLund-m3u]

Saved a TON of work,materials, basic weight issues, and made the unibody a vessel for the subs' chamber. You RIDE the beat❤😂

[@BudgetBassHead]

That's a great way to put it!

[@michaelogg1254]

Man this is simply incredible. Well done all around👍🏼 that thing was flexin pretty damn good for an infinite baffle I could only imagine how good it sounds in person.

[@kramnull8962]

This is the build, you just take them outside first and set it to 5 and let it rumble the neighborhood with a low vibe; quote a box price of $8000 and from the look on their face adjust the price/bass accordingly. If they wrap their legs around you and kiss ya, then you turn the bass way down of course; all negeotions first before romance....

[@dominikspencer3981]

I built quite many of these IB setups in the past four decades. Yes they do sound smooth, but I've learned a lot about myself since then. I kept burning up the subs/woofers because I kept wanting it louder lol. Many of my friends were satisfied with IB setups because they weren't looking for higher spl. They do sound great tho! Cheers!!

[@666Necropsy]

that sounds really clean even with youtube audio and your mic. very impressive.

[@666Necropsy]

im done with boxes. this is the way to go.

[@BudgetBassHead]

Glad you like it!

[@HulluJanne]

@@666Necropsy The first time I tested a dipole sub with some super crappy 12" in a small room, I was instantly amazed because of the details. Even though the sub was totally busted. I kept thinking about it and ultimately got a car that had a trunk that was almost like made for having a sub in the middle. Did an install with good 12" sub and fell in love about the idea where there is no enclosures (for the bass at least). Then after years I got two 18" Electro-Voice DL18MT's, old 90's PA subs for cheap and just fitted them on a big board. I tested them outside, as I'd been dreaming of a sub bass capable small(ish) PA -system that doesn't make the neighbours or anyone living nearby mad (even at like multiple miles away). Nowadays I myself pretty much hate the overly high SPL -oriented cars blasting some single note bass songs nearby. So I can imagine how it would feel waking up or noticing a bumping bass when you're going to sleep that just keeps on playing forever (in your usual forest raves, from 10pm to like 6am+). For example one time we had just one simple big Peavey 2x18" PA sub enclosure and in the beginning of the night a few of my friends went close to the nearest house, more than a mile away (which also was behind a small hill) to check if the bass carries to there and when they got out of the car to listen, they said it sounded like there had been a party going in the nearby house. I've tested the two 18" in a large wooden building and they went nicely down to 20 something Hz. One time I took them to a DJ gig in a really old bar in a wooden building. There I had some problems with uneven bass as I didn't have enough time to EQ the system. I also had a pair of 15" "modern" car subs and they too sounded great outside WITHOUT an enclosure. And I bet the bass couldn't be heard after like 50 meters or so, but the first 10-20 were very nice. Inside an aparment they would shake the floor with Indigo Children (JLE Dub). When I had the system in my car, I noticed that on the outside, the bass seemed to attenuate on the sides of the car, which makes sense as it worked kinda like a dipole. So I think one can blast their music much louder with a free air/infinite baffle sub system than they can with any enclosure without messing with the people around.

[@deseanthompson6803]

I learned more watching this video than any video. i like how he explains everything in simple detail, exactly what i need to hear. Thank you, man 🙌🏾

[@xguy7577]

Yo man, I really like all you do. This build brings some ideas to mind. I think a double baffle and brace could improve sturdiness. And just to protect the subs from things in the trunk; leave it open back, but add somewhat of a tunnel box only about 8 inch. Then add vibration deadening to the back side. Just some thoughts, I tinned to over think things.😅

[@CoiledProjects]

Man that sounds clean and precise. Love it 👍

[@rx7dude2006]

I was doing 135db with 2 15" Rockford Fosgates with a couple punch 150's.

[@Silentroller93]

That’s an insane amount of power for those subs, the trunk becomes a giant sealed box.

[@rickcharles5667]

Not exactly. It’s not sealed at all. The point of IB is only to keep the front wave separate from the back wave. There’s no air suspension like a sealed box so the driver has to be rated for IB applications.

[@Silentroller93]

@@rickcharles5667 True that it’s not totally sealed however it will still be more than if the subs were out in the wide open

[@greenbassboosts8872]

Once the Q of the system goes down to the Qts of the subwoofer, you have "infinite baffle" even in a box. At that point you just have to deaden and fill the inside of the box to kill reflections. Should play nice right to the Fs of the subwoofer@@rickcharles5667

[@philjimenez4874]

Exactly what we use to do back in the late 80's to mid 90's in westside in Chicago growing up . Then we go out cruising up and down Chicago listening to classic HOUSE music 😁

[@thebotlobbydaily]

Budget, throw two 18” stereo integrity HT-18s in there Replace the skars with these, I promise you will be amazed , nothing wrong with the skars but the stereo integrity are better and will handle more power (not to mention they cost 199 each) even though on 200 watts they sounded almost as loud as 2000 watts in my build- it’s just and IB thing brother - down low they only need single to double digit wattage to create carnage inside your car……and down low I mean 10-30hz notes 😂 I’m one of the guys that begged you to try IB in the first place so I’m a long time viewer and appreciate your channel. Peace brother

[@adamvargas9012]

Buddy of mine had 2 12 Pyle pros in a similar set up in a 1980 cutlass supreme , man that was the cleanest bass I ever heard and felt in any car at the time 😎

[@matthew_mayton]

I like your build, but that’s not an infinite baffle. The trunk is the subwoofer box, so it’s more like a sealed chamber, unless of course you leave the trunk open.

[@davidjohns9899]

I like that you spread the word as far as motor size not being a major factor when you have that much cone area

[@joshholden8561]

Motor size means the sub will make more power and a bigger motor does more power than a tiny motor with same amount of wattage.

[@BASSLIFE4EVR187]

WOW i have some pretty expensive earbuds in and it sounds amazingly awesome I can hear every beat every note everything sounds crystal clear sounds good man that sounds perfect like you said there's no need to throw all the power at it as long as you get what you want from it that's all that matters I give it a 💯 PERCENT 👍🏽👍🏽

[@robintodd3901]

Ear buds play low frequency 😂

[@josequinones297]

This has always been my go to install for saving my trunk space! Always sounds amazing!

[@sidneycowrdoy923]

Wow dude. This is probably the best sounding system I have heard on yt

[@rhkips]

I've considered doing an infinite baffle in my rear deck with smaller drivers, only because I need both the trunk space and the passthrough into the cabin to be able to haul stuff around for work. I'm also considering a shallow transmission line mounted to the underside of the rear deck, but I'm concerned about how a shallow, wide line would perform. Those two 18"s look killer, though! Have you played it with the seats up, yet? :D

[@BudgetBassHead]

It sounds like crap with seats up. Almost becomes a fourth order bandpass. Rattles the trunk like crazy, but about a 50% loss of sounds in the cabin. I have to crank the power to hear it properly, which these subs can't handle. I would need the ZVX-18's to play with the seats up.

[@bobgodd]

I have a single 15 hung from my rear deck so I could retain full function of the back seats. I'm not an spl type guy but who doesn't love bass.

[@codycr6]

My Fairlane show car has four 10's in the rear deck

[@smurfeco2.358]

​@BudgetBassHead in my 2015 civic sedan I cut the rear folding arm rest with a ct sounds meso 12 inch Made it custom all the air would travel inside the car . The meso 12 gets extremely low for a box tuned High . Sounds really good

[@MakeAnything-]

you got more spl from the 5 - 6.5"s I certainly appreciate you testing this - I may consider even though the 6.5s were more impressive to me

[@quevicular]

Try putting all your luggage in there and shortening up the space and then do a test and see what you end up with

[@BudgetBassHead]

That will make a great test. Thanks.

[@Funnyanimalsofyt]

I’d say squeeze the subs together and port it into the cabin

[@marshmccloskey4359]

& I gotta say…Of all the car audio videos going on out there, I love em all, but I’m always super excited when I see that you put a new one out because I do enjoy your videos immensely. Keep up the great work my friend!

[@BudgetBassHead]

I appreciate that!

[@ajones8008]

This is legit, never really thought of having the whole trunk as the enclosure. you def need some big speakers and a powerful amp for this build. Did you need to reinforce the trunk more or use dynomat?

[@eustahijelifetips]

you are very wrong, you dont need a ton of power for this, just a good seal and sound deadened cabin, check out ps sounds for these setups, he doesnt even have much power to begin with yet, he can make hair tricks

[@BudgetBassHead]

@Aaron_Jones No I didn't apply any 'additional' treatment, just yet. But I do plan to seal the entry a lot better.

[@BudgetBassHead]

I have to agree with you Josip. With the lack of compression, a lot of power wasn't really necessary for this build. When given a clean signal, it simply sounds good.

[@eustahijelifetips]

@@BudgetBassHead im having a hard time deciding making a good sounding wind machine against a big heavy box that will just get louder, but not sound as clean, if the infinuite baffle dont sound good, i will still have a baffle to use for a box, weird shape of the trunk is a pain in the ass, id rather just make a strong baffle, run low power and not have to worry about anything, hopefully

[@Steve_Larson]

I did this in the early 1990's in a small BMW. Trunk was sealed steel so I had to use a jig saw to cut the holes (2 12's) and then built a baffle and lined it with dynamat. It slammed HARD for the day.

[@BudgetBassHead]

Sounds like you were ahead of the curve!

[@uwharriebigfoothunter]

Using the trunk as the box is a great idea! I totally dig this. If it works it works

[@romero71chris54]

Glad to be gettin another fun video from you bro! Killer slap together set-up experiment. Imagine if you double baffled, sealed, and dynamatted every thing DAMN!!! 🔊🔊😎

[@BudgetBassHead]

I agree. This setup has real potential

[@144Jacob]

This is how they use to do it back in the late 80's & 90"s. They use to bolt the board to the back plate opening or to the floor so it was locked in and tight.. Systems use to bump back in the day. Love this old school system!

[@somewhereinontario1500]

I did this in a Saturn ion with two 15” kicker comps on 600W rms. It bumped real good for what it was and sounded great no matter what was playing. I had to spray foam the c pillars to seal off the cabin space. It got messy with the heat but made a huge difference.

[@BudgetBassHead]

I love that you sealed up the cabin. Nice work!

[@DerekDents]

I've got a spare SDR18 in storage, now I know what to do with it, thank you. They do sound good down low, for sure.

[@bigdogbrodavepresents6178]

Man... these are the woofers I wish were made in the late 70's... I was the Baffle Board guy most of the 80's... this sounds great... Nice video. Great explanation... Props. BDBD/2023

[@jcwindevillose]

Bro I sure wish I would had this year’s ago with my five hundred. Major props to you

[@robertomoreno5526]

I did this when I was 14 of age back in the 90's I loved it old school style. Don't forget the tweeters.

[@classicgamr]

I did this many moons ago with 2 lanzar 15's..worked like a champ

[@vgslife9640]

great video bro..in the 80's I had open air speakers in the trunk in all my car's and pounded so hard like they were in a box.

[@randomtube8226]

You are basically using your trunk as a big sealed enclosure. The better you seal around the edges of the baffle. The louder it got. Double or tripling up on the baffle and counter sinking them will help in SQ. From what I've found is that an infinite baffle requires a ton of space to unload from. It may be worth testing a single 18 centered with space on both sides. If you could then move it back and forth in the trunk to help get a desired tuning. But then it would be basically free air. It's more practical to design in vans and SUVs.

[@BillLambert]

What's even more amazing is that I can hear the SQ coming through the recording here. Yes, I have a very good sound system on my computer. Still, the clarity comes through the mic and everything. I drive an SUV so infinite baffle isn't really on the table for me, but I am envious for sure!

[@BudgetBassHead]

Thanks for noticing. It takes a lot behind the scenes to get you guys good content.

[@memelorddavid2938]

OMG!!! DUUUH just use your trunk AS A SUB BOX!! THIS IS GENIUS!!! now I wanna do this.

[@JayJay-oi2cw]

We did this in the 80s nothin new just history repeating its self great throw back great memories

[@MeltTech1111]

Old school installation!!! Like that setup no doubt. 30hz boom 💥 👌🏼 looks amazing

[@2.2_Slobolt]

All I can say is thank you! I’ve been thinking about doing the same thing with my 2 12’s!

[@1ohmwrecker]

I considered this at one point. Factory sub in my Mercedes in the rear deck used the trunk as infinite baffle already. So cool to see this!

[@BudgetBassHead]

You ever think of upgrading it? That would be awesome.

[@efunkyman6853]

I had a 78 Cutlass back in the day with infinite baffle and it would hit hard. I plan to try the same in my truck.

[@myevilbanana]

The way it was explained to me by a sq guy back in the day is you want to seal every possible leak between the the cabin and the trunk in an infinite baffle so the waves from the front don’t interact with waves from the back, thicker the baffle the better…. the better the partition the better the sound and output. Pair of 18’s fill the seat hole nicely 👍

[@pottsvision2607]

The sq guy was right - but you must also consider that the more cone area the more that 20cu ft or so trunk turns into a sealed box.... IB means the only back pressure is atmospheric pressure, "infinite" box size - in practical application this is, lets say, 10 cubic feet for an 8, 15 for a 12.. simply, a box so large the back pressure has little affect on the frequency response, so if the box was larger it wouldn't matter aka essentially achieve the "infinite".box/infinite baffle

[@TOMMY-WANT-WINGY]

With IB, The tradeoff from lower spl is larger bandwidth and incredible lows. Usually plays below 20hz.

[@Prodigy70]

SQ is always my go to. SPL sometimes is just straight bass and doesnt appeal to me as much. If you get those sides sealed its pretty much perfect. Saved lots of space too.

[@mayanaztec6440]

I just installed two shallow 10” Skar subs on the back seat of my Tacoma crew cab. They sound amazing at a very reasonable price.

[@BudgetBassHead]

Great to hear!

[@yeahright528]

That's badass dude! This is my first time seeing something like this. Sounds great!

[@sirkkorus8394]

Always wanted to do a set up like this my uncle had set like this but had 2×15 can hear it a mile away nice smooth bass that it shakes houses driving by setting car alarm off and loud n clear 6×9 as no rattle from the trunk

[@claudiofagundes9502]

Very interesting. I thought about this for saving space under a back seat in a truck but didn't know it would work. Nice job I'm definitely giving this a try

[@waterlife.1905]

I knew a guy no lies, in the 1990s, had 20 some speakers in his Chevy cavalier (1991?) And had an open baffle where they were placed behind the seats. He had 8 behind the seats. It hit hard but he said he wasn't happy with its sound. I have heard 2 speakers in a box do as much as 8 in an open baffle. Good luck with everything.

[@HulluJanne]

Years back I installed a single 12" on a third gen Legacy sedan, that doesn't have flip down back seats. But it had two steel box section beams in the center and I used those to install a board with hole in the middle for the sub. I put some packing material between the board and the seat back, to reduce/eliminate resonances. The sub was installed behind the board so that there was pretty even contact between the board and the seat back foam. It played real nicely down to around 24 Hz. The Fs of the sub is claimed to be 25 Hz and it won't play much lower than that. I had about 800 W RMS for it, but I felt it would've liked more power. I do think that the restriction of air flow from the seat back creates sort of an air spring effect in front of the cone and gives the sub a bit better mechanical power handling and maybe even a bit better control... I did test it without the seat installed and it felt like I could max out the suspension. The best parts of the system were the bass notes that vibrated through the chassis of the car straight to your ass, even at lower volumes. And the fact that the sound didn't have the same kind of pressure that comes out of a ported box. It was super smooth and clear, unlike the certain "messiness" from a ported enclosure. I have super sensitive ears to sudden or radical pressure changes (mainly because of damage from an assault rifle blast), but I still like high volume, which may sound kinda odd, but with that system, I could blast it with great vibes for hours without getting fatigue on my ears, which is very common to happen with normal systems and ported subs. EDIT: And third part was that I only lost about 20mm of the height of the trunk space and the amount of a sub sticking out from the middle. I just put a pretty accurately fitting MDF board on the back, so that I can raise it up to get to the spare tire. There's plenty of room between the trunk floor (underside of the board) and the top of the spare tire. Only problem I faced was the erratic behaviour with the phase response. Not sure which component was the actual cause, but as I had the front doors playing down to around 35-40Hz, there were lots of spots where they cancelled each other out. A single track would play crazy good with such control that it was almost too good to be true (especially for the money spent) and then the next track would have pretty much nothing at certain bass frequencies. I had pretty serious DSP in it and also a DSP head unit and I tried to hone in the sub for endless hours, playing with delay and multiple phase settings (head unit 45° steps from -135° to 180°, amp 0-180° and the DSP +/-). At some point I thought I probably should make a beefier board for the sub and point it straight at the drivers head. Also the boot is not insulated in any way. Rather it's very free-air and dipole-like. That could also be the reason. Nowadays I have a bit better gear for measuring stuff so maybe I should try that. Now I have a monster SQ amp that I'm in process to get wired in. It should give 2 x 850 W in 2 ohm or 1700 W in 4 ohms bridged. I think I'd go for the 4 ohm load (2 ohm coils in series) as it should give a better damping factor.

[@louiep9862]

IB setup's all day over any enclosure.Seal it up better and you're golden.Great job sir 👏🏾

[@BudgetBassHead]

I appreciate that

[@Man-go6ri]

Just reminded me when I was 17 in an old mini in london. Cut out the metal and put 2 12"s. Was rocking for a yout in the early 90s😂

[@hardtymz2517]

Did they literally just say “sounds better” and show Skar woofers in the same video?! Wow. No words. Just wow.

[@Jursaw]

Is something wrong with skar?

[@DavidJ909]

My cousin had 2 10's mounted in the back dash free air & you could hear him coming a mile away. His 78 cutlass was hummin !!!!

[@patrickbennett439]

Its basically a sealed oversized box and im very suprised it works. Awesome!. Yea actually I have the EVLs 18s in a sealed box and people say im crazy for the sealed box but people also say it sounds really good and they hear me from blocks away. Mine plays every note except the lowest couple maybe. Its still plays super deep base. Sealed base is earthquake shake you base.

[@Laserred01]

I considered doing this with 2 15s to save weight & space but instead made a pair of small (about .7cuft ea)10" boxes with Infinity Kapppas (selectable impedence). Plenty loud at about 1000W but haven't tested spl yet. Recently modded the boxes with slaps 10" radiators. Definately louder and retains the SQ of a sealed system! I'd love to try this IB setup some time with the proper drivers!

[@ForgottenMuscle67]

This is called a free air setup that was done a lot in the 90s generally the baffle would get sealed with great stuff, I had this same setup in 1996 with 2 12" pioneer impp on a punch 80, but you're basically using your trunk as a box as why you have a fairly low frequency, I personally like the sound even if output isn't the greatest it's smart if you want to save your trunk space.

[@marcusbrown7128]

Exactly the way I would describe it. I pretty much had a similar set up 1992 in a 86 cutlass with some free air pioneer 12's powered by a autotech amp. The bass was deep, I could be heard 2 blocks away . This was old school.

[@thebreakbarrelshow]

I completely agree ! Sq over spl all day long... Im currently build a set up in my 2008 sl 550.. im taking my time on getting the right speakers . The right imaging in the cabin.. being a hard top convertible i only have 3 ft net box space in the trunk so im going with 2-10's ported.. maybe 4 isobaric later

[@BudgetBassHead]

I would love to see that build

[@TheAceofFate]

I bought a STW350 after extensively watching your videos on it..... I was so excited, saved up for months.... And I will be damned if it didn't get stolen right off my porch man...

[@RJSDZNS]

Damn porch pirates! Sorry to hear that bro!

[@BudgetBassHead]

Wow. That's horrible. I hate that happened to you.

[@408SPLKINGS]

I ordered & paid $913+ for Skar equipment requested for a signature & leave a call tag if NOT home FedEx claims they got a signature & left it on my porch Wtf ? I live on 110 acres of farm & ranch land & NO neighbors No one was home Ring camera NO alerts & NO footage of anyone being at my porch or any FedEx employees or delivery vehicle No dam porch pirates FedEx driver STOLE from me No recourse with 😊 FedEx, bank or Skar What resident would sign for it & leave it on the porch ?

[@mrreggiej85]

"Something telling me don't do that" truer words have never been spoken 😂

[@AZTechLabs]

always built this way back in the day. was always amazing. nice job sir