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@Kevely978
Жыл бұрын
it's strange that at the end of the video you can speak normally, The speech during the video is very annoying
@DodgyBrothersEngineering
Жыл бұрын
@@Kevely978 try it for yourself... Write out a script and talk into a microphone. Now just say whatever comes into your head. I bet you don't sound the same. Reading from a script always alters the way you sound, especially if it is a different microphone. You will notice the speed he talks at is even different. When you read from a script you have a tendency to enunciate.
@Kevely978
Жыл бұрын
@@DodgyBrothersEngineering good job on it
@corynrobinson
Жыл бұрын
@@DodgyBrothersEngineering exactly. It takes a lot of practice to sound natural reading from a script.
@johanponin1360
Жыл бұрын
You scavenged the bluetooth pcb from the $2 bt adapters ?
@kumarsajal8400
Жыл бұрын
Hello. Sound engineer here. First of all I am really amazed at how you made this thing yourself! And the range of frequencies you're getting is pretty impressive considering it has been manufactured by you. But it is not the high frequency that is counted as the parameter for a good sound. Even a tiny buzzer can deliver 20kHz+ sound easily. And also a normal adult human cannot hear above 14-15kHz (so we apply a low pass filter to sounds often) It is the dynamic range and how flat(transparent) the frequencies are across the audible band that decides how good a speaker will sound. Audible Bass in songs is considered to be above 50Hz. You are getting significant mid low frequencies around 600Hz in your test. I would say play with the PCB thickness you can get more bass in the sound. But again congratulations my friend for this project. I didn't even know sound can be produced this way!! 💐💐😊😊😊
@DANKKrish
Жыл бұрын
audeze and hifiman are the two most prolific planar headphone manufacturers if you are interested in the topic.
@moeinsp2027
Жыл бұрын
👍
@AliYassinToma
Жыл бұрын
We can hear up to 20khz.. not 15
@pawef9049
Жыл бұрын
@@AliYassinToma Nope, people can hear up to 20kHz. That means 20Hz-20kHz range covers 3σ of normal distribution for whole population (I may be wrong). My personal range is 24Hz-17kHz.
@My-Pal-Hal
Жыл бұрын
Remember the Hiel Air Motion Transformers ???
@t1d100
Жыл бұрын
Nice project. Small tip = do not place any silkscreen on the PCB, because even its very small added resistance to movement will effect the sound.
@DLSDKING
Жыл бұрын
This is a cool project and i loved it. I made one as part of project work couple of years back for flexible electronics course. Try increasing the membrane thickness(you can have multiple silkscreen layers applied) for better response on lower frequencies and increase the drive voltage as your impedance is pretty high which would improve loudness, An O ring to secure pcb on the 3d printed base would uniformly tesnsion the pcb.
@ELECTRONOOBS
Жыл бұрын
Oh, interesting thank you so much
@SeamlessR
Жыл бұрын
Dope info all around
@JuanAuribus
Жыл бұрын
This one is already really thick compared to basically any designs
@rallyworld3417
Жыл бұрын
But did you find out why store bought headphones work on low voltage from what i understand from your video????
@NaterFernat
Жыл бұрын
So... with a thin/thick layer you could emulate a low/high pass filter? Daaam science of materials and its aplications never ceases to amaze me.
@theodoro89
Жыл бұрын
You need to find a way to suspend and tension the membrane between the magnets without touching anything. Usually planar transducers use very thin Kapton which is lighter and you can tension it better. Overall it's a very interesting project you did an excellent job.
@EversonBernardes
Жыл бұрын
Maybe preform and tension it over a rim, like drum heads.
@theodoro89
Жыл бұрын
@@EversonBernardes This is probably the way to go for DIY !
@MadScientist267
Жыл бұрын
Or just ditch the headphone idea and use real speakers (you'll need the 70s for this)
@marcdraco2189
Жыл бұрын
I think the main limitation of this design is the stiffness of the PCB material. In fact, that's a major factor when it comes to designing microphones too and it's what's limited the production of low-cost and reliable ribbon mics since pretty much the invention of aluminium-coated plastics. The peak near the centre may have something to do with that but I expect the stiffness is what's reducing the bass response to be so poor. High frequencies give us directional clues but a lot of information is in the mid and bass. Not a problem I'd like to try to solve, I'll admit!
@RectifiedMetals
Жыл бұрын
You’re correct about the pcb, it can’t vibrate like mylar to create the smoother curve, for its design. I like the attempt and idea. Planars are simple in design, but not to build for sure. There’s a reason only one company successfully builds a full speaker.
@DodgyBrothersEngineering
Жыл бұрын
@@RectifiedMetals I am going to piss myself laughing if you say Martin Logan.
@re4796
Жыл бұрын
@@DodgyBrothersEngineering martin logan
@martinda7446
Жыл бұрын
@@DodgyBrothersEngineering Magneplanar are the only planar quasi ribbon maker on earth. Martin logan electrostatics are made by many Quad being first full range in 1957. Apogee are the only full range true ribbon maker on earth (were).
@DodgyBrothersEngineering
Жыл бұрын
My RAAL ribbon tweeters have an element in them that is a very very thin piece of aluminium. After you install a new element (if the old one is damaged) you need to wave heat over the new element to tighten it up, so it plays. You may benefit from a similar design. Make it so the membrane is tight on your location pegs, and have a raise on one side, and a groove on the other, so as you screw it together it tightens up the membrane.
@UnholyNomad
Жыл бұрын
^
@motherjoon
Жыл бұрын
Man, your recent videos are getting much more interesting and advanced. Your PCB skills are going through the roof.
@impuls60
Жыл бұрын
Very cool project! I've just completed my own 4. diy headset with 50mm dynamic driver and AMT tweeter in a coax config. I used 1. order xo at about 2-3kHz. I used a 2.8uF cap on tweeter and through hole inductor on the bass. Very simple and highly tuneable. You would have huge issues with SPL because of the small pcb area. I would highly suggest that you mix a tweeter and a cheap dynamic bass driver. I would sugest you design the tweeter horisontally in front next to the dynamic driver (towards your face.) That would help with imaging and depth in the soundstage. I think this setup is the only way to beat a 3-500usd headphone. All dynamic drivers have brakeup above 5-6kHz so thats where the planer tweeter comes in. With external resistor 10-20ohm on the tweeter and xo in 3kHz you can easily create the Harman target hump you need to get the tonality right. My dual driver approach seems more complex than a single driver but its so more tuneable and faster in the end than a mechanical all in one membrane. Most planars also have to fast decay in the bass making it sound unatural. A dyncamic driver for bass and fast decaying tweeter its much easier to get the timbre just sounding right. Using an online crossover calculator 1. order you quickly get cap and inductor sizes. The tweeter resistor is only there to spl match the tweeter and could probably be SMD soldered on the membrane. I've been building headphones for a few years now so thrust me when I say its impossible to find or make a single driver that does it all perfect. If you found a good bass driver with low even distributed brakup you could probably skip the slightly expensive inductor aswell. Then the xo filter will only be resistor and tiny cap. The sensitivity of this setup will be normal/high so it can easily be driven too :) I really look forward to see where you take this pcb planar tech in the future!
@INeedsMoneys
Ай бұрын
I’ve always wanted to build a 2 way headphone driver like that. Why dont you upload a video on it my guy. I would be sooo grateful to you. 😁🙏
@Isaac_Diggs
Жыл бұрын
That's a pretty cool project. I use a audeze Penrose headset since April last year and I will never go back to ordinary drivers. The sound is just one of a kind
@vinylcabasse
Жыл бұрын
watching this while wearing my hifiman he-4xx cans. looks a lot like that circuit path also: it's totally ok that your headphones have a higher impedance - 27 is not at all abnormal for headphone drivers. most are much higher than the typical 4/8ohms for a non-headphone speaker
@ivanjenykowicz7934
Жыл бұрын
Years ago (early 90's) I bought old USSR made Elektronika isodynamic headphones, later sold as Amfiton TDS15. Great sound, construction almost the same :)
@PCBWay
Жыл бұрын
The new video comes! EXCELLENT as always! We are eager to see more flexible PCB projects from you in the future.
@ELECTRONOOBS
Жыл бұрын
Better versions are on the way... :)
@PCBWay
Жыл бұрын
@@ELECTRONOOBS Can't wait to see them
@My-Pal-Hal
Жыл бұрын
The Hiel Air Motion Transformer, is the best use of this I've heard put into actual use. It's amazing the amount of air (dB's) those things could create. Yeah, it took a Thousand Pounds of Magnet (maybe a bit less 😂) but they put out. And in two directions by design. ... cool stuff from long ago
@geirendre
Жыл бұрын
You might need a thin layer of foam on each side of the membrane to dampen it a little. It will also prevent selfresonance and stuff.
@ELECTRONOOBS
Жыл бұрын
Good idea! I might try it :)
@peterchung2024
Жыл бұрын
I’d like to see a book shelf sized speaker, planar speakers aren’t great at low bass when it comes to larger speakers, so can do hybrid, planar for treble and woofers for low end . Very ideal for headphones I must say. Love this project.
@dhekshith4113
Жыл бұрын
This topic is very new to me... i haven't heard such a speaker design... you explained it clearly as always... i would like to see more such things... this video is a good start for the year... 😉👍
@ELECTRONOOBS
Жыл бұрын
Thank you so much
@korishan
Жыл бұрын
I got a laugh from when you said "impedance". Because of your accent it sounded like you said "impotence", which is when a guy can't get, uhh, happy down stairs 🤣 I actually do love hearing ppl from around the world in their native accents (not trying to 'copy' American accent) when they do their videos. Helps to convey the various differences in cultural backgrounds.
@XeroShifter
5 ай бұрын
One thing to keep in mind when taking sound measurements is that you microphone will contribute a LOT to the recording, which is why you want a microphone not only designed for measurements, but also that your software knows how to compensate for. This is why a lot of people use the umik-1, its cheap, known by REW, and a decent mic for measurements. In regards to frequency response, the ideal chart will look pretty flat, and should have good response volume from about 20hz to about 15-20khz. If you can get it to be 25hz you wont pick up the deepest of base by any measure but the sound would be considered decent by a lot of normal folks.
@MrSlowpokee
23 күн бұрын
Impressive results!!! I can see many different tests with different combinations of magnets and PCB materials & thickness. After spitting out my drink when I discovered the price of the Planar Headphones, I came here when researching the technology to justify the 50X price increase. Thank you for the demo and explanation.
@kreynolds1123
Жыл бұрын
You may wish to look into thicker traces for less i² loss. Alternately, maybe you could have two flexible pcb glued together to drop the copper resistance to one half. Secondly, the magnets are powerfull enough that you could double the space between them giving more room for the pcb to flex without touching the magnets. Lastly, get your self a remote temperature sensor and plot how the the pcb temperature changes with current flow to get an idea what is the maximum cobtinouse power it can safely handle. And, i would hypothesize that the pcb becomes more stretchy the warmer it is, and that will effect freqency responce.
@therealjammit
Жыл бұрын
Maybe instead of thicker traces he could try no enamel coating but gold plated?
@leonpijpers7327
11 күн бұрын
Great work by the maker of the foil speakers and the video! [1] Thicker traces is a good idea, for lowering the total resistance [2] using 2 flexible PCBs could be avoided by just putting coils on the bottom of the already 2 layer PCB. less coil loops with thicker traces necessary on each side. [3] By the way I think the center of the magnets should be on the slits between the coils, not on the coils itself for stronger force. [4] at 2:35 in the video it shows 2 North poles opposite of the foil (and 2 South poles), for more magnetic force they should be North opposite South, they attract as well keeping the 2 halves better together and make the force stronger. I could be wrong but I love to see more experimenting for optimization done. Keep up the great creative work!
@vikhattangady
Жыл бұрын
Great project. I have 2 suggestions/observations: 1. The way you showed your magnet setups, the norths and souths seem to be pointing at each other and cancelling each other out. I would have expected that North on the lower half points to South on upper half so that the magnetic field is made stronger. 2. Since you are using a 2 sided PCB, if you split the coils into parallel sets on the top and bottom side, your total resistance should cone down as they are in parallel. This is basis my KZitem research on axial flux motors and generators, not sure if speakers work the same way. Cheers
@garethsmith7628
Жыл бұрын
yeah the magnets going N-N and S-S did not seem on first glance like it would yield the best result to me, I would have gone N-S S-N N-S S-N - but then applying left hand motor law it seems like this is correct how he has done it - en.wikipedia.org/wiki/Fleming%27s_left-hand_rule_for_motors
@IHeartMacsH8r5
Жыл бұрын
I have an iPhone 13 Pro Max, and when you held the speaker above the microphone I heard the bass perfectly. It gave me a good idea of what it would really sound like and wow. My neighbor offered me a set he had with a frayed wire and YES. This made me want it more. Haha
@ddundeez
11 ай бұрын
Thank you, you are filling my curiosity. I've been searching for the animation of planar driver works and no one uploaded it. Thanks for the yt algorithm take me here. The project and the explanation was super lit, though for the noob like me.😂
@GowrishankarLeGrand
Жыл бұрын
Great Video! It's always an unmatched experience listening to music on a homemade speaker/Audio System after putting in hours of work!
@tonal.states
Жыл бұрын
Now comes the real struggle, which is tuning the damn thing! It's flatter than I thought it would be besides that bass peak so it's kind of a good start, but that doesn't mean it'll be up to par with tuned professional equipment (at least not in this stage) because flat isn't innately good, usually tunings go more side by side with the Fletcher munson curve on how we perceive frequencies, so they caress the tuning into that, for our biology. Maybe a different mic to have a better reference could also help, Behringer has a measuring mic (Ecm8000) that could be better but it's more money just for the project, I guess... Also I've seen people use a way thinner material for the diaphragm, it almost looks like sandwich plastic wrap 🤷🏻♂️ so there's that, here in KZitem a guy has a small series on his planar headphone build and uses really thin see through material (can't remember what it was)... All this depends on how big or long you really want to go with this audio rabbit whole, which mind me, it's a whole sea of stuff by itself. Good luck!
@therealjammit
Жыл бұрын
That's not a bad response curve. It could probably be tuned with different bell caps (the backpiece on headphones) or perhaps varying the track distances in some areas.
@dustinbrueggemann1875
Жыл бұрын
Even virtually EQing it flat will probably result in something impressively listenable for the price, assuming the dac and amp are up to the task
@lennyrebello535
Жыл бұрын
Whenever you picked the planar from the desk there was a moment of good base. These are kool
@DanChase84
Жыл бұрын
I had never heard of Planar Speaker before, thanks for teaching me something new!
@bobruisk95
Жыл бұрын
Try to test it irl. I’ve got an audeze lcd-1 and they a way better than any of classical dynamic headphones
@thecatofnineswords
Жыл бұрын
30 ohms might be very high for free air speakers, but is not a bad value for headphones... A headphone amp might be able to drive them better. Nice project!
@ELECTRONOOBS
Жыл бұрын
Thank you! Glad to know that!
@JonathanDeWitt1988
Жыл бұрын
Andrei, another great video! Thank you for educating us on this. This explains why when I took apart old headphones I didn't see any traditional speakers, just a small disc shaped circuit. I believe these were planar speakers. Very good to know. I look forward to seeing these in headphones.
@JeradBenge
Жыл бұрын
Dynamic diaphragms can be quite small in headphones, and even smaller with in ear monitors (down to 3.6mm). They still operate using a central voice coil, and a "cone". They're just really small.
@martinda7446
Жыл бұрын
Having been in the audio industry for 40 years I must say this (The pcb) was beautifully realised. The planar speaker in a quasi ribbon. Not a true ribbon, but has a unique sound free from boxiness and colouration, well until you put it in a box! I have a pair of Magneplanar 2.5s with a planar bass and mid and a true ribbon tweeter. There has only been one speaker made to reproduce bass with a ribbon, Apogee (Scintilla was first, I believe). They are amazing things but need a power station to drive them. The other full range panels are electrostatics, and they are all different with different strengths and weaknesses. The flexible generator must be at least firmly held round its edge(glued) if not actually in tension. Is this the lightest weight material available? The weight and flexibility of the surround will determine a lot of the performance and maybe even consider a rubber surround? I am not a speaker maker, (obviously).
@INeedsMoneys
Ай бұрын
No, his design used a 0.2mm thickness of the membrane. PCBWay can do 0.025mm thickness. Plus he put even more additional layers on his for aesthetics. So no, you can do a lot better if you wanted. But the material it self is great. 😊
@martinda7446
Ай бұрын
@@INeedsMoneys Thank you sir.
@luizbarros97
Жыл бұрын
Congratulations! Nice project. As a suggestion, you could use a Hallbach array in the magnets and use them only in one side, so that the diaphragm would have more space for vibration. This should improve low frequency response.
@bob2859
Жыл бұрын
I had this same thought. And thinking about this a little more, and I think it might impair sound quality to have a full halbach array, because it'll have a closed back and there will probably have weird resonances. I think using a bunch of small elements for the longitudinal magnets might help, if they're arranged with spaces between them. From the front, it'd look like a square grid.
@spudunit
Жыл бұрын
It's an interesting idea, using a Hallbach design, but I believe with planars the idea is to have as uniform a static field across the diaphragm as possible. But it sure would be nice for minimizing acoustic reflections.
@JOELwindows7
Жыл бұрын
Whoahow!!! DIY planar speaker!!! Amazing awesome!!! Try to add thin foam between magnets and membrane. Would be muffled but at least won't hit magnets on overdrive
@KurokkuSama
Жыл бұрын
tbh… can’t wait to see DankPods and Crinacle getting interested in this project and then make a review on the headphones
@bentsprockettech
Жыл бұрын
Awesome! I love this one. I'm always looking for different ways to have audio output. What do you think caused the impedance in the PCBs you got to be different from what you had in your calculations? Thanks for sharing this one. 🙂
@anthrobug
Жыл бұрын
This channel is just what I was looking for! And these headphone elements are incredible. Thank you for sharing your work and knowledge!
@genalphalyrics8729
Жыл бұрын
Ooh can't wait for the headphone enclosure
@dracoevgeniy
Жыл бұрын
Не думал что снова увижу подобное спустя много лет, были у меня наушники еще сделанные в эпоху СССР, но там была проблема с кабелем и я их разобрал.
@XtremeKremaTor
Жыл бұрын
Some wool pads make miracles in such small enclosures as a stuffing.
@wesleymays1931
Жыл бұрын
I almost thought this was a Carl Bugeja video. He does a lot of stuff with electromagnets on flexible PCBs, so making a planar speaker felt about right for him.
@jiggsh54
Жыл бұрын
I have a set of Magnepan Magnplanar speakers. Bought in 1977, still work. Powered by a Phase Linear amp.
@JuanPab521
Жыл бұрын
Fabulous! According to Oersted's right hand rule, the lines of force are perpendicular to the intensity, so why do you put the tracks parallel to the magnets?
@NackDSP
Жыл бұрын
The response looks good. Add fiberglass stuffing to the box to reduce the box resonance at 500Hz.
@MisterkeTube
Жыл бұрын
The way you mounted the magnets has the same polarity pointing from both sides towards the flex-PCB, no? Should they not be opposite poles to enforce the static magnetic field? Maybe some more explanation on how exactly the magnetic field would be used might help give viewers like me a better insight.
@ELECTRONOOBS
Жыл бұрын
Hi. Actually I did in the video. With the arangement I've made we get a powerful 2-polarity magnetic field just in front of each coil.
@MisterkeTube
Жыл бұрын
@@ELECTRONOOBS I rewatched the part of the video, but it's still not clear to me. Drawings with N and S between (so to the side of) magnets where you colored the top and bottom, which normally means that the magnetic field is oriented vertically just seems very weird. A drawing of the actual field lines of the static magnets and then the field lines of the conductor traces of your PCB would make things a lot more clear and could give a better view on why the conductors would be attracted by one side and repelled by the other. With that said I also wonder whether a design with several circular (so spiral) traces each between two circular magnets would not be better as putting those in parallel could also help lower the overall impedance. It would of course require a wire going from the center of each spiral (loose enough to not hamper the movement of the flex PCB - or if you can do dual-layer, one spiral on each side oriented so the magnetic fields enforce), but I think the magnetic force would be used more efficiently. Of course it also is more like a traditional speaker then, but I don't see why that would be a drawback.
@cbeas4662
Жыл бұрын
Would it improve anything if you could use 3 stacked PCBs for each frequency range? the one with the largest surface at the bottom for low frequencies. A smaller one for medium frequencies. And 1 or 2 smaller ones for treble. Is there any chance that it could generate something like surround sound? thanks.
@Angeloi89
9 ай бұрын
I would love to see this project be finished. :)
@drsamuelk
Жыл бұрын
Amazing, you think of things mere mortals don't.
@neoqueto
Жыл бұрын
Imagine this. A thin, also flexible OLED panel in a (rigid) screen with a planar magnetic coil behind it. And what you get is the best speaker in any laptop, probably the best speaker in your house or even neighborhood.
@nightrous3026
Жыл бұрын
The curve looks like that because it has resonance, something you want to prevent it would be cool seeing how you could get around it though!
@rayoflight62
Жыл бұрын
I have some tweeters from JBL and Yamaha from the late '80s using striped coils like yours. They need a 12 dB crossover cutting at 2500 Hz, and a fuse. They didn't succeed in the market because they have a marked tendency to blow up. The printed track break with great ease above 5-10 Watt RMS, this is why they require a fuse in series. Your response is not too bad, but there are resonances caused by excessive spacing between magnet. The ceramic tweeters are the best compromise between cost and efficiency though...
@gkdresden
Ай бұрын
The power you need from the amplifier to get a certain acceleration of the membran is indepentend on the impedance. For higher impedances you need a higher voltage, but a lower current. I guess this floppy membrane tends to partial vibrations which can compromize the sound a lot. You get a better control over that if you take a voice coil on a rigid but thin plate suspended by use of two foil rings. The foil should have large enough inner damping. The material can be rubber or silicone rubber. There should also be a small radial tension on the outer rim of the rigit plate in order to define with the mass of the rigid plate a low frequency roll-off, somewhere between 50 and 100 Hz.
@indisag
Жыл бұрын
Today I learned something new from you.
@Capturing-Memories
20 күн бұрын
Higher impedance actually requires less power to drive, not the other way around. This is why powerful amplifiers use 2 ohm speakers instead of the usual 4 or 8 ohms so they don't get burned.
@thegloriouspotato6223
Жыл бұрын
Cool! I love the frequency response measurement. More flat than I expected considering that it's homemade. Not much bass of course but still super cool.
@santopino2546
Жыл бұрын
Wow, with this method you could create different speakers on one membrane, bass, mid and tweeter and maybe a surround speaker. Or what about a Helmut containing 7.1.4 speakers.
@kaumohlamonyane272
Жыл бұрын
The amount of valuable information you provide is appreciated 👍🏿
@rafiexperimental
Жыл бұрын
That frequency response is good bro. There needs to be a bit more gap between the magnets and coils
@BowsettesFury
Жыл бұрын
Wow this is really cool. You should collaborate with DankPods, he talks a lot about headphones. I need to do some research I want to mod my old Kenwood on ear headphones with these.
@boiizach3510
Жыл бұрын
Really interesting project, im not any kind of electrician or anything like that, it just happens that i own one set of planars and one sided planars (with the magnets only on one side) are a thing now, I suggest you may want to check how it works and if it improves the sound in some way or something before making headphones out of these speakers, can't wait for an update.
@dmitryplatonov
Жыл бұрын
You can add some cuts to membrane to improve low frequency response, decreasing it's stiffness.
@Tarodenaro
Жыл бұрын
That looks really cool; i bet it sounds better than most Hifiman headphones. . . . Joking aside, most planar structure does have a really high capacitance (unfortunately) making some audio IC's having hard time to adjust for it's load , you can circumvent these by coupling it with 1:1 Trafo or 12:1 DI Trafo (as transfer function) like a really ancient Bertagni planar speakers made in the 70's, thus making it really easy to drive. Also, don't get fooled by the frequency response like a typical audiophile on the internet; you do need to measure it with a waterfall test / spectrogram to see how the phase response actually looks like because a badly made planar does sound really thin, like as if almost the planar spent most of it's energy just to "punch" the magnets to it's case lol.
@berdnikoff
Жыл бұрын
*This project is absolutely perfect! We are waiting in the near future for headphones (even sound systems) with such a planar type of speakers to come out. I speak like an advanced sounder and audiophile*
@Clancydaenlightened
Жыл бұрын
9:50 gotta put in a sound chamber, wit all dat soundproof foam!
@Cinemaaereo
Жыл бұрын
Hi, would you have time and interest in making a video showing possibilities of how to eliminate source noise? I mean the audible noises! There is a horde of people on the forums who, like me, change power supplies for LED lighting and even cell phone chargers because of the damn noise of the sources.
@MrGringo466
Жыл бұрын
small soft layer maybe 1mm or thinner to each side of the membrane can reduce the magnet rattle sound and also provide some better (imo) free air resonance characteristics, it may also help with smoothing out the peaks from hitting the resonance of the pcb base material. but the desktop speakers are a great idea. ill have to look into that.
@spudunit
Жыл бұрын
Fantastic! I look forward to seeing your headphones come to life.
@nicktheneko
Жыл бұрын
try making the PCB spring loaded so it will be stretched from all sides equally and it would be perfectly centered in the middle of the 3D Printed material
@Bleats_Sinodai
Жыл бұрын
20 ohms is about the same impedance of KZ in-ear monitors, so not far away from already available products.
@luisvidales5056
Жыл бұрын
I think that if you make a type of suspension for the membrane at the edges and center, expand the magnet bars a little more, you can reproduce bass frequencies at a higher volume without damaging the membrane. And use it like headphones
@spenny3403
Жыл бұрын
Very cool!! Can't wait to see what the headphones turn out like!
@HelamanGile
Жыл бұрын
Can you make it so the top band can I have a question or maybe that it could be printed out of flexible material with a solid core or maybe it slips into another core and a soft 3D printable material can be split over it maybe almost like a bubble with loose supports an inside hollowed out maybe even part of the earmuffs could be 3D printed in a similar fashion and then you put a fabric cover over them
@ATrippyManeHD
Жыл бұрын
I have some 12 year old monsoon computer speakers and sub. I was wondering how these worked. Thanks 😃👍, almost did a teardown.😅
@pirminborer625
Жыл бұрын
Lots of ohms is not a Problem. You just need more voltage swing on the amplifier. High impedance is actually easier to drive. Could you space the magnets somewhat more appart? I would go with active speaker design. A small amp with equalizer to correct the frequency response integrated in an the headphones. Sure would make some decent wireless headphones.
@retro_boy_advance
Жыл бұрын
Thanks for making this video! I've been wondering how planar magnetic speakers work
@Lexxl67
Жыл бұрын
It is possible to place thin soft dampers between the membrane and magnets. Silk fabric, or nylon tights?
@steverogers7611
Жыл бұрын
For a dipole speaker make sure to have open backs on ear cups
@ericgillespie2812
Жыл бұрын
What about glueing down the pcb with some silicone? It seems like use could deform the pcb or mounting pins over time. Not sure if this would affect sound in anyway but idbsay worth a shot.
@GianlucaBocci
Жыл бұрын
Where to buy the same magnets you used for this project? Thanks!
@CLARVO
Жыл бұрын
Woah!! Thats Cool I never heard of this planar spaker .... The explanation was good.... And btw I have a project recommendation. Look, 3d printer filaments are not that cheap... But if you search online we can find pla granules,abs granules etc... pretty cheap for a kilogram. But the issue is that we need to turn it into a filament roll but I have no clue how to diy it... The granules to filament machines were too expensive for a normal hobbyist like us... There is one majour issue which is having the correct filament size... The size could vary according to filament drying fan speed , the speed at which the filament Is pulled etc... So I hope you could find a solution for it it will be very helpful for us..... Ik this is a long comment but if you read all the way here, ur cool.. Anyway I am looking for your reply 😁
@PeetHobby
Жыл бұрын
That is cool. only the flex PCBs are so pricey compared to FR* PCBs for one-time hobby projects and experimenting.
@Jerome____
Жыл бұрын
Can you make a diaphragm mold to heat up and press the pcb to get a sawtooth shape? I think that way it will have some space for cone excursion?
@sameersaifi-hy9pq
Жыл бұрын
Hello sir I'm Sameer from India very nice 👍
@crapasanya
Жыл бұрын
I'm really surprised, they sound really good for something DIY. The uneven frequency response is 12.5db (excluding bass boost, because why not), which is not bad for factory budget headphones. And here is the result of homemade. And notice how good they recorded on 10:41, i think, you shouldn't put it on the table when recording.
@sailingmohican2767
Жыл бұрын
Wouldn't it be lighter and thinner to use another coil sheet in place of the magnets? Basically just 180 out of phase on a backing plate
@skinwalker69420
Жыл бұрын
I'm wondering if I could make some of the PCBs for this and then modify the housing of a pair of AKG K240s to use Planar Magnetic coils, because I've got some fairly nice new production K240s but would like to see if I could install the ultimate upgrade
@thegeek3295
Жыл бұрын
Well done, very nice. Lots of hard work for an amazing modern design.
@thomasvnl
Жыл бұрын
Could have compared that dBm curve to a quality speaker hooked onto the exact same amplifier maybe? Would have given a better side by side comparison of what is shown to you.
@alarmasmgvht6924
Жыл бұрын
Excelente trabajo !!! Sin duda vale la pena. Espero con ancias un segundo modelo de planar speaker
@mvpx1432
6 ай бұрын
Man i love your channel i wish i have the same equipments you have plus you have cool ideas
@juliogzz
Жыл бұрын
in the graph i see that bass is low, you must use a spacer in the flexible PCB for bass or make PCB harder
@jiggilowjow
6 күн бұрын
hey this is just like mems... it looks like. hey would you please build a mems type cooler. like those upcoming computer coolers like solid state coolers. love your stuff. its easy to see your going to be very rich in life
@sofianeabdesselam3825
Жыл бұрын
Good project i think if we can replace magnet to other pcb because magnet is heavy that's reduce efficient
@skinwalker69420
Жыл бұрын
You should try to design your headphones with a removable cable, that way they can be easily fixed when the cable inevitably goes out.
@DragonXflyer
Жыл бұрын
Could you replace the magnets by creating an electromagnetic field using other PCB membranes? If this was possible it could greatly reduce the weight and thickness of the speaker. Cool Build Though!
@ferrumignis
Жыл бұрын
What would you power the static electromagnets from?
@qwertyuiopasdfghjklzxcvbnm138
Жыл бұрын
interesting what can be done with divided windings and 7.1 input, could it improve volume effect from typical sorround technics.
@TheAniMike3977
Жыл бұрын
so you marked all the magnets on the same side, but they would have been together in a north - south - north - south... configuration, so if you did the first 4 for the 1, 3, 5, 7 rows, then the next 3 for the 2, 4, 6 rows, then wouldn't it be in a north - north - south - south... configuration?
@Fusimester
Жыл бұрын
You need an exponential frequency correction that mimics the shape of a traditional speaker diaphragm.
@prestonmurphy69
Жыл бұрын
Do you happen to know the specs of the magnets, like the grade and such, or maybe have a link to where you got them, I wanna try my hand at this but I'm finding it difficult to find the right magnets. Thanks!
@zvotaisvfi8678
Жыл бұрын
Wow This is Really amazing !! Great Idea !! For your bass buzzing - Yo ucould try cutting some finish nails in half, and then drill or awl a separate circle of tensioners for the diaphragm, then when you close the speaker, the diaphragm is already tight. Really Great Video !! I have never seen a small planar speaker like this before!
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