Building a LINE ARRAY Column Speaker- by SoundBlab
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- Опубліковано 1 жов 2024
- - The first 1,000 people to use this link will get a 1 month free trial of Skillshare: skl.sh/soundbl...
Let me explain what a line array speaker is. It is essentially an array of drivers closely arranged in a vertical row. My design is probably more of a mini-line array, since I only have 5 small 2 inch drivers in the array, but it is an array none the less. The aim is to have something that will still have a reasonable footprint and can fit into the average lounge. The array column also has a rear firing tweeter mounted in the back. This allows us to fill in the typical high frequency drop of the array, but also gives us some ambient presence. Of course five 2 inch drivers will not produce much bass under 200Hz, and thus the array is supported by a subwoofer as part of the overall design. In this case the subwoofer is a project I featured in a previous project video: • Building a Small Passi... . The woofer is a 6.5 inch driver by Tang Band, and two 8 inch passive radiators.
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►PARTS:
- 6m (20 foot) of speaker wire (14 AWG) - (US) parts-express.... , (EU) bit.ly/39erRI4
- Dayton Audio ND20FB-4 Rear-Mount 3/4" Soft Dome Neodymium Tweeter - (US) parts-express.... , (EU) bit.ly/3D8zHib
- Dayton Audio DMA58-8 2” Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm - (US) parts-express.... , (EU) bit.ly/3DfoMmC
- Tang Band W6-1139SIF 6.5 inch Subwoofer Driver - (US) parts-express.... , (EU) bit.ly/3xcx4bI
- Dayton Audio DSA215-PR 8" Designer Series Aluminum Cone Passive Radiator - (US) parts-express.... , (EU) bit.ly/2UVva2b
- Self-adhesive Felt or Rubber Feet - (Amazon) amzn.to/2XVQaXw , (EU) bit.ly/3kB56SL
- 1m (4 foot) 25mm (or 1 inch) Aluminium Round Tube - (US) bit.ly/3mqrTSc , bit.ly/2Yf1VIP , (UK) amzn.to/3l7sI2G
- Terminal Cups - (US) parts-express.... , (EU) bit.ly/2ZWcXDM
OTHER CHANNELS:
- Mixtape // Music for everyone and every occasion - bit.ly/3Cg3pUA
Recommended Gear, Tools, Amplifier Modules, Speaker Drivers, and more...
www.amazon.com...
Audio Components & Solutions:
- Parts Express (US) - parts-express....
- Soundimports (EU) - bit.ly/3B0xWEn
- Axiomedia (EU) - bit.ly/3TUQUoA
Music: www.epidemicso...
The first 1,000 people to use this link will get a 1 month free trial of Skillshare: skl.sh/soundblab10211
►NOTE: BUILD PLANS for this project is available on my website at soundblab.net/product/line-array-speaker-build-plan/
line array ? where are the waveguides ? lil player.
Why so much hate in the comments? This guy is expressing his passion. Sound is extremely subjective. Keep up the great work mate. Love from Australia
Thanks appreciate it! Everyone seems to be an expert, but have nothing to show for it. I don’t claim to be one at all, I just love what I do. The principle of a line source such as that of a line or column array is the same.
This is a really well done build. TY for sharing your design processes and build techniques! I do wonder, if this would be better described as a "Column" speaker instead of "Line Array" as it does not have vertically steerable elements. A very pendantic clarification on my part. But, one that may help others find similar designs to compare. Cheers!
Thanks. I think essentially a column speaker is a line array, that is if the column comsists of an array of same drivers in a vertical line. You could call it a ‘column line array’ perhaps.
@@SoundBlab TY. Yeah I think it's kind of "a column is an array and an array can be a column" sort of definition. Obv what you have here is well designed for it's application and that's what matters. Thanks again!
Id agree this is a column array rather than a line array, typical line arrays also have 10-15 degree vertical dispersion between boxes to stop comb filtering. High frequency drivers are usually set within a horn to control the dispersion of the driver to get that 10-15 degrees. With lower frequency drivers, of course it means the dispersion is more omnidirectional due to the length of the waves, however using phase cancellation using the different degree of phase from the sound coming out the back of the driver, can be used to control the dispersion out of the front of the box, using a ported horn, and creating a better phase response from the indivual box to group of boxes.
As the dispersion of your column array is set by the conical dispersion of each driver and the amount of drivers in a line, their is overall less control of phase, as the drivers get further apart, for example the top and bottom driver in the array, it will cause comb filtering depending on where you stand or sit, this is the inherent flaw of using full range or high mid drivers as the main speakers and and just having them next to each other open with no horn or wave guide.
@@SoundBlab I agree that you would be hard pressed to call this a real line array. Line array is a very specific thing. Certain measurements between drivers and air spaces need to meet very specific requirements to be classified as line array.
@@SoundBlab q
I built something very similar for my PA system, but I used Faital Pro 3FE22 drivers, 16 per side for the power handling, and a Faital Pro 12FH520 on each side for the bottoms, running a QSC GX7 to feed them. Although it’s slightly lumpy at the high end because of the separation of the drivers, just over three inches) the dispersion and sound is similar to how you describe. It takes a bit of EQ above 5k to even it out and to get a flat plot like yours, also a bit more like 97dB at 1W, 1m with the 16 drivers. I’m glad others are resurrecting the column arrangement, it can work well.
Nice!
Thanks for doing this. Very very cool but so you know that’s not a line array. You mean a column array. A line array has a minimum length that it needs to meet in order to begin the line array effect. Anyway, thank you for this.
Also so you know, it’s not the column array that gives an array it’s wide throw. It’s the fact that you were using small drivers. As a rule, smaller drivers throw wider than larger drivers. That’s true for point source speakers as well as arrays.
Oh my gosh that sound crystal clear through my earbuds. Great job 👏🏽 I enjoy listing to the different tracks, but the Jazz was my favorite 🤩.
Awesome! Thank you!
I just wanna build EVERY single project of yours ! Its so great looking !
Thanks 😊
I imagine the sound was excellent. How about the sound stage? Once the insulation dried out I bet it was even better.
thanks for taking us along for the build. i tried to speed it up to save a little time, however i felt a seizure coming on and decided against it. the quality of your work and the materials used looked marvelous. quite a craftsman. i'm sure the outcome sounds as good as the test results imply. new subscriber here and looking forward to your past videos and future constructs. cheers from an old speaker builder in california.
Thank you!
13:23 what track is this, please? Love your videos!
Absolutely stunning work. I can only dream of not just owning those beautiful speakers, but also being able to build them. Thank you for sharing your brilliant work!
Many thanks!
Awesome video, I would like to see this same design but with bigger speakers 4 inch drivers and the subwoofer 12 inch
Thanks
The fullrange drivers are available in a 4 inch version (Dayton Audio DMA 105)
I envy your know-how when it comes to sound/audio. I can build nearly anything, and could make the most aesthetically pleasing speakers - but - I wouldn’t have a clue when it comes to how to tune speakers, or how to pick correct speakers and different internal components, in order for my build to sound as beautiful as they looked.. amazing job, mate!
Thanks!
This is not a functioning line array, it is simply too short for that
A line array for home must be at least 1/4 as long as your listening distance, longer would be better
So they just pushed a “virtual” point sound source further into the room
hello sir , you sound system audio quality I like it a lot, it's exactly this quality of sound that I'm trying to have in my car .
you can help me to see clearly what I should do?
I'm on an Audi A3 8L, I installed rnse from A4,when I tried the golf 6 rns510 radio, the whole problem was solved, the sound quality is very good, the sound quality is super clear and the bass quality is pleasant .but not possible to fit a radio in my central console.
I equipped it with the bose system ( basically it's 2 hp in 10cm at the front at the doors and tweeter +10cm at the rear panel + sub unit with 2hp disappointed. )
I'm looking for sound clarity like the 2010 cars the sub have 80hz , so I changed the front hp to the a8 hp and the rear to the 16cm hp, the sound has become different, but not better, I removed the original sub box, replaced it with a wheel sub box, that removed the 60hz and added 30hz its good bass ,but not good sound but does not make you want to listen to music. I look for 80hz bass. I think the sound filter of the 2001 and 2010 radio sound different, you either have to modify the radio filter , or need filters between the radio and the amp, but my level does not allow me to filter this her
Im always excited, impressed and proud when I find creative South African makers on UA-cam. A diaspora of some of the smartest people in the world.
Thanks
I wish to see more more slim enclosures, similar to soundbars because they can be put on the wall, furniture, horizontally, vertical and don't need a lot of space. If you can go to 40-50Hz will be more than enough for 99% of people.
Anything’s that in your radar I am keen to do a slim project
If you rotate this design to the side (horizontal) it will loose evetything that makes it great. It will suck at imaging, the dispursion will be very narrow and riddled with colmfiltering nuls, in short, dont do it.
Stereo itself not any mid or vocal sound .....🤔 This speakers work with big massive center only....
Very cool clean build. Though the graphs look odd. Like there's some comb filtering or standing waves or something causing it to rise and fall at a steady rate across the range of the Frequency Response.
Though I'd imagine that could be fixed easily with DSP and a few low Q filters.
You can’t fix comb filtering with DSP, nor EQ. The only way to fix it is to move way back. And the graphics are misleading. Stand up above the line and the highs completely go. That’s the vertical dispersion limited only to the height within the line.
@@hualieno4119 Maybe "fix" wasn't the right term. Like a null you can't fix with DSP I poorly worded what I said and Instead I meant you can somewhat tame it based on the graph I saw. It won't fix it. But might make it less noticeable. At least a little.
Placement would be the main focus to get where they play best then DSP after that.
Though I wouldn't want to have to deal with that comb filtering at all if that's what it is. I'm not sure what that is but It just looked kinda like it.
@@JoshM7 Trouble with comb filtering is that when you move just to a different seat on the couch, it is a completely different tonal picture. Sit in the center, and there will be a gap at, let's say 6kHz. Move a bit on the couch, and your gap is now a peak at 6kHz.That's the comb filtering in action. So, if you EQ the center position trying to raise that null in the center (bad idea), then the person sitting next to you will have the peak even more intensified.
Same goes if you go the other way. If you try to tame a peak at the center position, the others will have a chasm.
And you can't do multiple measurements because they will average each other.
Really, the only way to deal with comb filtering is keeping the drivers small, the C-to-C as small as possible, and putting some distance between you and the speakers.
Line arrays are wonderful, I built a couple myself, but they do need certain care, and yes, they do need DSP, even after you took care of the comb filtering.
@@jeffp7038 Ohhh ok. I typically only have one seating position and rarely anyone else in the room. So I'm only really tuning for my position. But that makes sense as it's just like other audio related problems. Just a different way to tackle the problem.
When I had a single sub it was extremely positional and hard to get a smooth response across the range. But was doable after lots of trial and error with different positions in my room.
Switching to dual subs helped a lot and sounds more full almost everywhere in the room compared to a single sub.
Even though I only have the one listening position it's nice having that smooth response in other areas of my room.
So I guess now the question is. Would time alignment fix the comb filtering? Might need each driver to have their own channel though... that's not always easy.
@@JoshM7 multiple subs is the way to go indeed. You can also play with phase between them to equalize the nodes around the room.
The smallest line array I built was 9 drivers. I wouldn't do it again. I like being seated at the listening position, but I also want to have good sound around the room when I do other things. Small LA have tiny perfect listening spot, sometimes a few cms only! The smallest I would do is 16 drivers, and 25 would be better yet.
And going through all the trouble of wiring all these drivers to get a very limited listening space is way too much hassle! If the room is too small to have LA in it, then, one should consider other designs. Trying to beat something into a shape it doesn't want to do is a lost cause, and will introduce way more problems than solutions.
Time aligning them all with single powered channels is possible, but again... the amount of work involved is overwhelming! Wiring and assembling 16 or 25 drivers per line is quite the exercise in patience!
It's still a long way from the line array, but nice work,
the processor is missing, which is the loop, the separately controlled speakers, and one important thing, the speakers are far apart, even in this case, which is the hardest solution for line array systems !!
Thanks for the video.
Thanks
I designed a similar system back in the 80s I called the "Periscope". I didn't get a chance to build them but it's nice to see and hear these. There are much better drivers available today so there is no way my old design would have sounded this good.
Thanks for sharing
Very nice! But I don't get why you would show an FR graph with 1/2 octave smoothing and such a huge SPL range. Makes it look too good to be true upon first impression. Good thing there's also a fundamental in the distortion graph.
Thanks. I was showing the off-axis response and the smoothing shows the different graph lines a bit clearer.
Line array? On a passive crossover?. No time alignment?. Don't think so sorry
Does it sound good to you?
Thanks for this engaging video.
It was enjoyable to view.
Hands on and building something that is your own.
Most people won’t understand the journey.
I do!
Passion starts at a place for everyone.
Some people watch a few videos of this or that and then get inspired.
They usually end up at big box store.
Well done good sir.
I am truly impressed!
Glad you enjoyed it!
I really wish we would stop using the term subwoofer. It is not a subwoofer. Its a woofer. A Woofer has a range typically from 20hz, to upwards of a few hundred hz. A Mid-range takes over at about 300hz or so, and carries it up to 1500 to 3000hz. Then the tweeter takes it from there to 16kz or a bit higher. That is the audible range of human hearing. A SUB woofer, is a physical sensation device that is designed to be felt, not heard. It is SUB (which means below) 20hz. Often they do not even use cones, but fans. This "base drive is subwoofer simply because its in a separate box" stuff was basically started through marketing misuse by Bose. Its just a woofer.
That ship has sailed, everyone, including Industrie pros are calling everything that is meant to play below around 100hz a subwoofer now. You are correct, but i dont think it makes sense to hold on to that.
Really impressive, all around! Very, very cool design. Sounds great, don't know where some of these comments below are about (probably didn't even use headphones). Wish you could arrange flatpacks for those of us without the tools, but I know that would be an entirely different business platform.
I don't normally watch the ENTIRE video that people post of builds, but, this. Wow. Absolutely beautiful.
Thanks!
Same hear, but my computer is connected to Klipsch The Sixes and their 15" sub.
The baffle is too thin, no reason for that. I'm baffled by your decision.
Great build, thanks. My question is about the tweeter position, I understand it reflects from the room walls, but this is not perfect. Would it be better to place two tweeters angled from each other 60 degrees for eeample?
This is the only thing I do not like with my column array, it produces 120 degrees coverage, however the high frequencies are there for 40 degrees, no more unfortunately.
It's a great job, it looks very nice, but I don't think it's a hi-fi system, there's a lack in the low-midrange, and it's because you don't use a medium-sized driver. I don't understand today's trend of doing everything as if it were a mini home theater. There's nothing wrong with good 6-inch midrange drivers, especially considering that a couple of traditional columns take up the same amount of space. It would be nice if you ventured down that path.
Great Video! One of these days i'll make a line array, very cool speakers. You make me want to become a better woodworker
Cool 😎
Does it does not effect the sound for high frequecies as tweeter is pointing back.?
That's not a line array...where the multiple cabinets.. Where's the time alignment software...where's the audio processor equipment
That's not line array I own l acoustics Kara 1 and void arcline 6
The array should be mechanically isolated from sub to avoid intermodal. I’ve done extensive work on this and it can make an amazing improvement in imaging and sound stage.
I don’t believe “line array” is the correct name for this. Line array suggests being able to adjust the throw angle of each driver in this case. This is a column speaker not a line array.
It is a 'column array,' but a number of identical loudspeaker elements mounted in a line in phase with each other, which creates a near-line source of sound. The word 'column' is descriptive only, it still is a vertical line array, just mounted in a column and not adjustable, to create a wide horizontal dispersion pattern.
Estou fazendo uma projeto com um Woffer de 6,5 polegadas e duas domos de seda,qual é o projeto melhor?Uma caixa de 18 litros com dois radiadores de 16cm ou uma caixa de 14 litros com apenas um radiador passivo?
Wow it sound so clear and natural well balance to my hearing.
Glad to hear that!
It sounds like boom sibilance and harshness... I think there's good reason why people angle them. I've always wondered why even still they're not too popular.
Interesting that you chose five, not four or eight. Not sure how you wired the smaller drivers..in parallel or series.
It's a combination of parallel and series. The 5 uneven number of drivers looks better than the even numbers 4 or 8.
It's really beautiful, I want to follow you, but do not know how inside?
Can you tell me about the internal connection?
21:21 I really really doubt that a frequency response and directivity look like that.
What is the SPL of the line arrays? Been thinking of building some.
The SPL is mostly limited by the subwoofer used, which is approximately 83dB. Even though the speaker still works great, and with a decent amp that can deliver good power, the design can probably do with dual woofers on each side to boost the output by another 3dB. But perhaps this is a another project for the future.
bat..the midrange are fulrange?why you dont applicated two tweeter...
If you would watch the video he did put 1 tweeter in each speaker but on the back side so the sound bounces back off the wall...
What media are you using for play back in this video. It looks like your TV screen is showing your song collections. USB @ 320 output from TV?
I run Audirvana on a Mini PC connected to a DAC via USB and then into the amp. The TV just shows the PC screen via HDMI, it's not in the signal path.
Buen trabajo y bastante elaborado ...los tewters estan conectados en paralelo?ya que eso bajaria mucho la impedancia casi a cero..saludos...
so how did you connect the tweeters series or parallel?
parallel
Looking at your stuff on the console I realized that I either have it our considered buying it at one point or another...lol Cheers.
Nice Video! I am curious what is the name and artist of the Jazz background music in the beginning of the video played in the 1st 6 mins?
🎉🎉🎉 LUAR BIASA...🎉 I'm from Indonesia I will follow you
You get all done with one then you have to start all over.
Thats not a Line array System 👎 but nice try.
Can you make a wall mounted curved line array like ones used in concerts or house of worship?
Id love to hear a replay with the aray being centered in the corner between the sub and the radiator, subs pointing out and the radiators pointing in at a 45 degree
ask for schema
everything was perfect but in the end you mounted the inductor coil too close to the magnet, why did you do that?
It's not too close, I allowed enough space between to make sure it has no effect on the result.
Hi, loved your build, I was wondering if you could help me .
I have a three way crossover and 3 speakers one at 7ohm and two at 4ohm what's the best way of wiring them to work with a 4ohm or 8ohm amplifier.
Well, a 3 way crossover will only allow you to connect it in one way, that is each speaker connected to each crossover output, one for the woofer, one for the mid, and the other for the tweeter. The crossover you get and the components in it will determine the outcome o the impedance. Is the crossover rated for 4Ohm or 8Ohm? it should be specified in the specs. Either way, it should work with both 4 or 8Ohm amps, since most amps can handle a a 4 to 8Ohm load.
This may be a dumb question, but could a version be done by just using the small speakers without the subs, and integrating my two RELs for the bottom? Basically the crossover would become a filter and just roll off the bottom, using the REL controls to bring up the bottom to 90 or a hundred cycles? I love this type of speaker when I’ve heard them a few times, and that would be a terrific way to get my feet wet. thank you!
Hi, I would not recommend it with this speaker. Best will be to design it specifically for your purposes.
very good bro from Indonesia
Thanks!
Exceptional as usual, however I challenge you to build enclosure with no straight lines, a curved monolith if you will.
Thanks! That will be a good challenge…
Looks bit like old Gradient 1.0 thou it allso had dipole mid bass
have not seen those before, very interesting!
wish I could buy these speakers after he builds them.
Wow the quality is like a megaphone.. im so impressed 👍👍👍
I like your build .
I've worked with veneers before but how about bending around corners such as a quarter inch bullnose ?
Without using something like a vacuum bag.
Thanks. Never tried it before, but it will be tricky I would imagine if going against the grain. I am sure there are some tips and tricks involved. Something to explore then...
Ukuran & skema
Wonderful build. My only, admittedly subjective, opinion is that I would have preferred to have the entire cabinetry in black with rounded edges all over, perhaps encased in black acoustically transparent fabric. The aluminum post for the array unfinished. Overall great job!
Thanks. I like the idea of the rounded corners.
Sorry. Not impressed. Too boxy and direct. Not open or effortless. Sounded canned to me. Room reflections are very apparent. Maybe they sound better in person.
They probably do sound better in person.
How wattage is calculated in centre tap transformer?.... Like 12 0 12 5amps is 24v *5 = 120watts or 12v* 5 =60watts.
I'm from india, your build quality is great. I am taking the speaker made by you but can you send me the product to India
Things even sound good through my phone speaker
Original la conception
Please do active bookshelf speakers.
Will put it on the list.
If you have those six tweeters in parallel, you will be loading the amp at 1.33 ohms.
They are not in parallel only, it's a combo between parallel and series to give the correct impedance.
A question can I use the Left Right as Wall Mount with my 55"TV and have the bass unit separate box down .
Nope, not with this one.
Bmr drivers will be definitely better to widen out the sound stage in this thin setup.
BMRs will be a good option yes.
Bạn có thể bán cho tôi có được không? 🇻🇳
You mean column array. Those are not line array.
Boost high frequency , the best.
howsit broer.. where can one get the parts for such a buidl locally here?... im in jhb...
Hey, sorry man, but you will not find local suppliers for these type of parts.
An unexpected result for such a design, the sound is really smooth but not fascinating, of course completely different speakers are needed as midrange and treble.
Thanks
These are column arrays. NOT line arrays.
Is the column array sealed or ported?
sealed
Hello sir I need crossover designer what is the procedure
I have become your fan
Bro you are very intelligent
You deserve 10M subscribers and 3M like on this video
Thanks man 👊
Amigo,quantos litros tem essa caixa?
Why he didn't cut the hole for the passive radiator before assemble the enclosure?
Its easier to veneer the cabinet first and then cut. You get a better and cleaner cut into the veneer.m this way rather than having to trim it with a blade or chisel afterwards.
its barely a line array, but at least it wont need as much power to drive
Hade si eta nyieun na euyyy... Perpecto
Well done, but I think this would be called a Column Array instead of Line array.
Thanks. I'm gonna go with a Column Line Array, but essentially it is still a line array of sorts 😉.
This is sepeker twetter or midel???
Skema box
Much love from South Africa. Your accent is oddly familiar.
Thanks man!
Amazing work, as always. Those measurements were amazing
Thanks! The measurements are smoothed, but just for the sake of comparing more easily visually. Even with lower smoothing it still looks very good.
@@Clobercow1 The results are heavily smoothed, at least 1/24 or Var smoothing would have provided more accurate graphs. To be honest, even Psychoacoustic would have been better.
Средние как из бочки.
How does this deal with cone filtering? Not seeing the standard full range line array top end wonkyness
The drivers are very small and the centers close together, so its not significant.
are those tweeters connected parallel?
It is a combination or series and parallel to get the right impedance.
Column and not line. As one guy pointed out already
Actually, it is a column line array, but a line array none the less.
hey awesome videos, can you share the link on where to get the router circle cutting jig
Thanks. It's a jig that came with my Triton router. I don't think it fits other routers or can be purchased separately.
Something went wrong
I had wondered how a line array of speakers could be done for height channels .. fitted to ceiling for that Atmos / Auro 3D immersive effect ? Maybe 11.2.x systems cover that well enough?
You will meed a big room with plenty of space between the speakers and the listening position.