Building a 4" Transmission Line Subwoofer - by SoundBlab 

What are the measurements of the box?

the stuffing is at the beggining of the line

Once again a fine build. I always look forward to watching your videos, partly also because of your choice of music in your videos, which is always excellent! I always have a good time when watching your videos! Thanks!

can you show as how its sound when is on the car ? :) love this small projects :)

would really appreciate a video like this for a 10" or 12" subwoofer

How many Vas liter this box . Sir? For 4 inch speaker

would have been great to maybe use a di-pole driver to see how much audio spectrum you could cover with just that enclosure. Great build BTW, always enjoy watching your creative new projects.

You should have covered the bottom air passage with black net.

Very well done, I listened with a nice pair of headphones and it has an impressive range. Thank you for sharing!

👍🏻 Good work as always ! From Germany 🇩🇪

Can you build me one of these? 🤪 I’ll pay.

I disagree with that stuffing. But you gotta respect any man with more than 3 routers.

Hey soundblab! Your driver fs is 35hz. So the lenght of the port should be 96 inches to produce 35hz and the port should be continuous. But in your design the port length looks less than 50inch and is also not continuous.. can you please explain this?

you did not get a maze, as the first spacer inside the case is useless - it does not isolate the space behind the speaker. It was necessary to do the struts obliquely.

Не правильная реализация перегородки, динамик- волновод.

My DIY TL sub measures 1½ feet wide, 4⅔ feet high and 2⅓ feet depth. Produces sound that propagate on floor. Real nice subsonic sound.

Can you please build a 2 inch t-line sub box?

hello please can you put the measurements thanks a greeting

Impressive. I would add a bit more stuffing to tighten it up a bit. I'm listening to it through my two 12" subs and I can't believe how low it goes.

Made my first with some old tear down parts of old stuff, not as small, due to needed to be at least 12”x14”x and went with x 10 sidewall which placed ext. wall and act as side ports for surround acoustic with additional top ported tube. I have very minor knowledge on boxes or properly distributing sound. The 4” micro sub is in its own separate box within the box as sorta of a double boxed concept acting as a double semi compressed bass -air-per-cubic ft. Which i was iffy about. And only using 2 smaller 3inch full range audio speakers in front of box and i only designed 2 split sound walls to control the acoustic to ported sidewalls , which front to rear go 7 inches to back- once again i have no clue what i am doing , to know whats best. Lol just and idea of how i thought i wanted it to work with lil to no knowledge . Let me tell you something though. The quality of 300deg. Sound shocked more than just i ! They bass shakes whatever you did not know was loose in the house or area. The neighbor from 3rd floor , i do not even know , as i walked out to put into car before work to get some paint on it , asked if that was playing on and off last couple days? I replied yes as i was checking to see sub hertz range for 6-7 min. Each time. He replied -wth ! That is one bad*** loud box , it can shake somethings in here and i thought it was someones subs in a car. Lol -note these are very newly built solid and very quite apartments and that was the 3rd floor. My wife won’t even let me play it in the house . But i did noticed the 2” x1” side ports built in sidewalls were not enough and i thought would be too much or plenty for the small pre-boxes sub at base of box , but they were actually not enough i found out later on accident . So i ended up putting a flush port tube at the rear top of box and that increased bass and the bass quality of surround as the speakers were already. I think the reason for this was , that on the sidewalls i decided to close the side ported areas off box with audio mesh for a nice, clean look and it cut down on the air to be able to exit box as much as did before and compresses against self. So the ported tub on top helped not only get that back , but made it even better in all aspects. Never expected that lil sub to need so much air . Given its pre-box size is 12x14x3.75

Can you do a bandpass design?, I'm a bandpass fan

Please, give me dimensions of these project. Thank You!

What is the low end frequency response for this setup?

I would cover with grill of some sort. and maybe carpet the housing. Beautiful build.

$90 USD for just the driver of a tiny subwoofer?? Thanks but no thanks.

Hi, I thought I'd mention that yo should loool up RU-vid tricks for creators, if you get your video over 10mins it allows you to place more ads, say one in the middle one one right before the end and one at the end of the video, it should increase your revenue stream significantly and help you make better content or just support you more.

I can see that having a table saw making accurate cutting really easy . It's not so easy free hand with a circular saw

Name of the song Please!!!!!!! @SoundLab

This looks great! Whats the f3 of this sub and how does the driver generally perform? I'm currently planning a build using this driver so I'd love to hear your thoughts!

Made my Z5500 10" sub go low, must sound decent..!

Can I ask for the schematic/size, friend?

6:58 im in love.

It's really flat in the responce, smooth and tight.... is there a video on small battery powered amps as I'm thinking of a portable system with a extra amp to power this when there space and time for the exta subwoofer... Intresting for live song making in the woods or on a mountain

If you ever need big Dvc 12inch subs for a car box feel free to contact me

06:38 What is the music name? Can someone tell me please

Yeah I want one of these for my car hook me up!

Curious on what it would sound like without the material in there

blocking air hole with this fiber foam is a mistake. try passive radiator or just free up the air way to make bass more punchy at low end.

A real speaker will easily pop them nails right out 🤣

Highpass at 35hz doesnt qualify as a subwoofer.......

Hi there. I like all of your videos since you explain things in very easy terms to understand, particularly, for a newbie, like myself, and which has led me to start building my system from scratch. One of the things I'm planning to build is a Transmission Line enclosure. Got a question - let's say my target frequency were 35Hz using a driver with a frequency response of 44Hz - 22000Hz. So, 35Hz is below 44Hz. Will my T-Line enclosure be able to hit the target? Or I do I need to set a new target at a point no lower than the one part of the driver's frequency response? Is there any restriction aside from the length of the tunnel and its cross-sectional area? Can it be tuned for any given frequency regardless of the speakers frequency response? Regards and, please, never stop making videos.

i would support you on Patreon if i had money

How it's sound?,looks similar with Bose accoustimas design

song title? im gonna test my speaker

I love you.

Forgive my ignorance, I'm new to the music sound quality scene. What is the purpose of the white matting?

im curious what the result would be if you took half the depth off from the box and shrunk the port spacing to 1/3 of its current measurement.

Good work Man. From BRAZIL

Alguien q habla español...?

7:43 song name?

Song in 7:59

the transmission line is way overstuffed it might work ok in this particular case but just seeing the sonofil move so much proves that its almost a complete blockage This is more comparable to a sub with a passiv membrane than a transmission line sub sorry to say but for me this is a failed attempt at a tl sub

are you using pneumatic air stapler or electric stapler

7:04 the test section makes my pioneer sp1500 go blast 🔊 Good enclosure

Subwoofer? You mean woofer. It's not Sub-Woofer range.

Cool build. The actual science behind the build would make for alot more views. Id like to learn the port science.

Это изумительно пропорциональная и эстетичная вещь! Это говорит о том, что правильная техника всегда выглядит прекрасно, так как всё в ней направлено на функциональность, а не на броский дизайн, рассчитанный на широкого потребителя. Браво 100000000! Спасибо и всего наилучшего! Просто супер!

Cool 😎 subwoofer and sound

Nice design!

Pls share measurements

Can you plsss give the measurements

What makes this a transmission line? To me this looks like a vented enclosure with a long folded port?

Диаметр головки маловат для низкой частоты

i have a 4inch 4ohm 20w woofer from an old cheap subwoofer which i don't know the ts parameters but it plays under 40hz well free air Can i still use this build? To prevent damage i'll just lower the gain on my amp Will this build work for me without knowing the ts parameters of my woofer if i dont play too loud?

Verstehen Sie Squarespaces in Front montage

onde comprar um desse

What was the name of the application which you used to model the transmission line. I can't make out waht exactly was said.

Why did you do it like that? There's an extra sidewall for no use? That's not a transmission line speaker! It's a kind of aperiodic reflex system!

Love this channel. So interesting watching a craftsman about his work. Subscribed. 👍

Great Work Bro.Keep it up.Please tell me box and port dimensions.

Do you know where to get a good 4 inch subwoofer because my 4 inch subwoofer blew in my gaming chair and need a new one please help🙏

You can make video working this sub more long?

what will happen if theres no stuffing?

I have never seen the driver placed midway through the line section. Its always at the other end or farthest away from the port opening. Lengthwise. If that makes sense. It's odd like this. A Unicorn box.

1:51 this offset is annoying me so much!

You should build me a box

Box dimensions please

Good work! Frequency response from 55Hz-60Hz - I think so

Will it work fine in a sealed box?

I love the tang band woofers. No other company makes them like they do. I'm gonna use the 5 1/4 inch subwoofer and a slightly larger box.

That looks and sounds great! I love TangBand subs, i have 2 Tang Band W6-1139SIF 6-1/2 subs in my car and they sound good but i know they could sound better with the proper box. I know nothing of subwoofer box design, i just tried different box sizes and different slotted port lengths until i thought it sounded good. It would be nice if someone would design a box that i could make.

I do wish I could get this Subwoofer in my part of the world! Shipping to NZ is a killer!

Can hear you from South Africa ? Which city are you in , I’d be interested in asking you to make me a fabricated build.

for that material you put inside the sub can i use my leftover single socks. rip them up and stuff or is that a bad idea?

Can you add weight to the passive radiator, because in 5 liter tuned to 30 hz you get flat responce from 30 to 80 hz.

Es ultraprofundo

Перегородки тонкие, будет резонировать

nice build, just a tip for a box transmission, the port needs 45 degree angles at each turn (use wood), to guide the pressure wave used to prevent pressure bounce back into the t-line.

Anyway you'd consider selling this? Lol

Phase in t-line speakers is a trip. Should I first just make the enclosure and then add volume inside the case to unify the phase?

Why is the sub not at the end of the line, instead of 2/3rds where one side of the line dead ends...?

Not T line

boss, why is the port added a silencer? what is the function?

Awesome build! What's its tuning frequency?

but please try and use supplies from sa so its easier for us to get our hands on

This is an awesome little build. I'm familiar with T-line enclosures, but isn't the top chamber in this build redundant? It seems like the sub is installed in the middle of the line.

7:42 soundtrack name, please. :)

Good quality speaker but the pice is very hi for this little thing.. nice build

The Tang Band W4-2089 isn't available on PartsExpress (200 min buy + 4 month lead-time). Is there another smallish driver 5-6" that has similar performance that you would recommend for a similar build (scaled up for a larger driver if necessary). Seems like most of the woofers in the 6" size have a frequency response starting at around 90Hz where the TB starts at 35Hz.

i wish i could build a custom enclosure for my 12 inch but i dont have those kinds of tools