I saw a these at DoD research facility back in 1980. The engineer used expanded polystyrene foam and the sound wasn't that great. You explained why his sounded so bad. He hung them on the wall vs susended them and his mounting points were on the upper corners. The kind of foam he used probably had a impact too.
@AmplifyDIY I've used those kind of speakers 15 years or more ago, except back then when you bought the 2 speaker set, at if I remember correctly, something like 6x12 in size, they used a stiff cardboard or what looked like cardboard anyway... Another couple of differences were the fact that it somehow made sound by using something like a piezoelectric speaker, such as you find in a talking birthday card, and not an exciter, and also, they weren't hanging off the wall, they were in a plastic shell so they "looked" like a "thin" desktop speaker... Not trying to throw shade on your video, it's just something that I thought you might find interesting
I built a pair of these about a year ago, you will need a good amp to drive these but they (can) sound ridiculously good for what they are. After building (or let's better say, slapping them together) I ended up sitting in my basement and listening to all kinds of music for hours because I was so amazed of the sound.
i made concrete pipe speakers 8 inch round 4 foot long it was a 8 foot long pipe cut inb half with a 8 inch bass in the top full freq in the bottom you can paint them the colour of your room and the sound is like this put them in the corner of a rectangler room and the sound travells the floor and ceiling reflects of the back wall and if you are in the middle of the room its surround sound with 2 speakers whereever you are in the room the sound is around you and is strongest dead centre and they are heavy dont vibrate its amazing the loud sound behind and level with your ears its like being on the stage with 2 speakers
It's always the "for what they are" part of this discussion that gets me. How do they sound compared to something like a decent set of bookshelf speakers? Is there any comparison there? I'd love to give these a shot, just to have a cool conversation piece, but am actually concerned about sound quality.
Lol that's what I'm thinking! I don't think I'd be going anywhere for a few hours. Just sitting next to my self built speakers and enjoying my favorite tunes as if it was the first time hearing them!
Good video, I saw the original video a while back and did 4 of these in my office and the sound quality is out of this world. I did full 4ftx8ft sections instead of the smaller ones on 2 of the walls, then I did 2 of the smaller 2ftx4ft ones. The larger panels for sure have more low-end compared to the smaller panel. I bought some black ink and painted the surfaces black with the ink and did some white ink making the foam boards look like playing cards. I found when I tried to spray paint them, the sound drastically changed and didn't sound as good. The ink didn't affect the sound as much.
I would guess that when paint hardens, it made the boards less flexible-so either much more power was needed, or certain frequencies weren't reproduced, or both.
I have seen this speaker design several times on YT and it is really fascinating. One guy did a 2 stage speaker design with one rectangle being made of the foam board and another out of balsa wood ... which might act to give the sound that mid-range "heart". I am really thinking of doing this ... though my music blasting days are pretty far behind me for the most part.
I know this isn't audiophile level design, but I thought I'd add some thoughts. That very large amount of free swinging and inertia complications, especially in placed close to the wall behind it causes clarity and phase problems. With its' surface area and problems I mentioned, maybe that can be worked to your favor with near room corner placement, with a diagonal orientation. This can enhance some frequencies, plus the added wall reflected sound will give you a wider/deeper/more complex soundfield, sort of like old Bose direct/reflecting speakers for a bit more 'concert hall' effect.
Good idea! If it's missing depth or meat as he says it could be like mid range frequencies or resonance being off either too little, in which case I was thinking that could be mimicked by adding more surface area larger plates, and resonance could be mimicked on a flat plane with increased perimeter, like a string being either lengthened or loosened makes a deeper tone, but each method has a different depth or meat 😂.. maybe a kites and darts pattern like veratasium used in his penrose tile video or those fractal antennae designs they use in cell phones. 3d cut one add a speaker and try it experimenting is the only way to know. I'm a science girl, But I have a woman's intuition that because Fibonacci sequence is found in musical notes, that kites and darts or sunflower holes or some other fractal containing phi would be an ideal design constraint if you wish to keep a flat surface. The easiest way to check nodes and anti nodes is by laying it level and sprinkling salt while scanning through frequency ranges. ❤ Lol I wanna try this now!!
I can report that these sound way more roomy and bassy when mounted up in the corner at an 45° angle (center of the speaker is pointing into the corner) i recommend getting an amp with an equalizer as the mids are kinda weak.
- now you mention 'soundfield', might there be any mileage in some form of 'reverse-soundfield microphone' -style speaker (employing drivers/exciters instead of mics?) en.wikipedia.org/wiki/Soundfield_microphone
I used to have a pair of Wharfedale PPS-1 flat panel speakers back in the day. Think they were about £180 back in the day, and I've seen them going for as little as £90 today if you can find them. On the plus side, they also come with a matched sub woofer to fill in the missing bottom end.
I have a pair of these mated to a Acoustimass 7 sub. I absolutely love the voice clarity, midrange detail and overall fill rate of sound. (I hope that comes across ok, I really don’t know how else to describe it.) I usually get away with much lower volumes than I used to need. Best ~$30.00 I’ve ever spent.
If you want to improve bass output, add a bit of extra mass to the back of the driver. Other options to try would be adding a layer of fiberglass backing between the foam and driver to help stiffen the panel.
@@xAnAngelOfDeathx I think adding a bass shaker on your seat would be a great way to give you a lot more bass, it makes it feel a lot more powerful because you feel the sound in addition to hearing it, and you can turn the audio a lot lower.
Speakers arriving today. Ordered 3 pairs of exciters from parts express and have shared the video with several friends and family. Thanks for the video.
From the original video, this one and a couple others, I start considering the hipotesys of using 3 different layers of coating: a more rigid one, at the bottom, for the low freqs, a medium one at the middle and a light one at the top, for high freqs (maybe concentric circles would work better, with high freqs at the edge of the panels?).
looks pretty cool, without being able to push any air ,what is the lowest frequency you can get, i am skeptical that you can get anything that would be considered bass, but it sounds like it .
They do lack a bit in the low end. Larger panels would produce bass better, but this size panel needs a subwoofer for sure. Check out my follow-up for more: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XC814uQjlaE.html
@@AmplifyDIY i know you need at least a 10" speaker to push enough air to create a subsonic frequency, but i dont know how low you can get without any excursion ,how does a bigger panel get more bass, i love this whole idea and want to try it, much respect.
Do these have to hang straight down to work, or could you hang them from your ceiling, facing at a downward angle? Using four strings (two at the top and two at the bottom) to get it to be parallel with the floor. Thinking about the aesthetics here. Also would be cool to get the foam boards in black!
There are 2 things to consider: 1) These panels are pretty directional. You want to position them so that your listening position is more or less "in front" of them. If you could hang them at around a 45º angle in an upper corner of the room, that may work well. 2) When placed close to a reflective surface such as a wall, the reflections from the sound coming off the back of the panel and bouncing off the wall behind become a problem. If you do plan a permanent install in an upper corner, add some sound dampening material to that corner behind the speaker panel. Good luck!
i was so offput from the title of the original i never watched it but as soon as you layed down the concept i was like holy fuck these are something i might need to make myself
Unless I missed it. I would have appreciated a detailed description of how you hooked the wiring up to the exciter and to the amp. Other than than that great video
Hi Rich - the exciters are wired up the same way you would wire just about any speaker. The exciters have tabs on the back meant to receive a female spade connector. I simply connected negative from the amp to negative on the exciter, same with positives. The amp is a 2 channel amp, so each exciter had it's own channel to drive it. There are more details in my follow-up video here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XC814uQjlaE.html
I have built a set of these speakers and with a subwoofer and a ten band equalizer connected they sounded pretty nice. The problem with the transducers is that their weight tents to pull the voice coils out of linearity with the magnet structure causing them to buzz and distort. So I found that wadding some tissue paper up and putting it at the bottom corrected this problem for the most part. Anyway, for the price of the materials used, it was a worthwhile project.
I remember tech channel when they made their video an 2 years later I found yours making same thing. I love that you made this video. This is what science is all about right here brother. Tech Channel made something an told how an using exactly what parts so others could replicate it and make their own. Just like a inventor or scientist who discovered something new and or built it. They build a cool thing and to have others believe it's real and works just as the creator says it does, the creator says an shows exactly how to make it and where to get the exact same parts to build it yourself and it works better than we think. I've shared this video with about 10 people and I shared the tech channel with those same people back then. But everyone I shared it with will wait till I make it then say ok you made it great, (then I guarantee you), they all but two of them will say, you know how to make these speakers because you can build an make anything so I'll take this set of speakers and you can build yourself another set of them. But the 2 who won't say that, they will want to come over and help me make more of them. Who are they, they are my girls, my two beautiful grand daughters who love building cool and fun things with their Papa, like we built their catapults and that was really a fun build. I even taught them both how to hunt an fish when they were only 4 an 5 years old. They are 2 of the smartest girls I know because I taught them how to do it all. Even cleaning the game we caught or something we got from the woods. Great video, an teach the children at the same time we built an I guarantee you all, they will love it. So I'm going to need to order 4 sets of those items needed to build these cool speakers and have my 2 girls and their younger little brother come here to help Papa build these things. That booster has Bluetooth built in, when you said that I was automatically in, hook line and sinker on this idea and said to myself oh yes definitely going to build this one. Thank you so much for making then posting it, even tho it's 2 years later, I watched, shared, comment and tapped the like button and now getting ready to subscribe to your channel my new build cool things brother in the tool shop. You do know, the one who dyes and has the most tools wins, right. Just sit his cool trophy next to him in his casket an close the lid. Got to love humor my friends. Share Love and share knowledge so others will know you are a Great Teacher and a Master of the Tool Shop that can build and fix anything. Hahaha till next time my friends take care an stay safe and most importantly check on your elderly neighbors and see if they need anything. Even just saying hello to them might cheer them up. Try it, even if you don't really know them. Atleast you will make a new friend.
Hey buddy. Great video. Wouldn't maybe gluing the driver to a hard surface produce even more vibrations to the foam ? When you showed to foam i could see the driver vibrating pretty hard too
Why the meat is missing is they are not in a chamber. Look at that Bose tiny shelf speaker. Build a box where these can be suspended and the pressures within will fill the mid and lows. Plus the larger panel and thin the larger panel by 1/8 th an inch to allow more flex for lows.
Just attach 20-30 of those exciters to the walls and floors of your room or all over the house and watch people wonder where the sound is coming from. tell them it's magic.
Now we need a 2 or 3 way test. Get the 24x24 boards and roll everything above 200hz to those. Get the 24x48 and roll below 200hz to them. Passive crossovers or caps.
Very interesting! I like the better sound test you've done (although a test with great microphone & perhaps different shapes would be perfect) One thing I wonder though is - shouldn't the back of the speaker be fixed to the wall for example? I mean that currently roughly half the energy goes into moving the speaker itself the opposite way of the panels, and if it was fixed it would transfer most of the energy into the panels. What do you think?
Hi Blue - a lot of other people wondered the same thing, so I made sure to include a fixed-mount in my follow-up video here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XC814uQjlaE.html
I'm thinking if you could hang these on the ceiling they would be invisible. Do they need to hang vertical? Or could you hang them from all 4 corners on the horizontal? Also you could airbrush an image on the surface and have a picture speaker.
Hey SeeTheForest - you can hang them however you like, but I've found they perform best when hanging vertically similar to how I showed them in this video. Also note: if you place them near a wall or ceiling, you'll want to add some acoustic insulation behind them so you don't get destructive interference reflecting off the wall/ceiling behind them. Good luck!
The main problem with planar speakers is the lack of good dynamic range. During quick loud parts like drum solos, they just don't have the umph without lots of distortion. I could see a pair about half that size with a decent sub woofer, that would sound nice.
Hi. I enjoyed your video on the “World’s greatest speakers”. Questions. 1. You placed one driver in the center of one panel and the other driver at the 2/5th, 3/5th position of the other panel. Is this for stereo or mono? Would I need 2 panels per channel? 2. Can you use different size drivers for different frequency ranges, and a X over? I’m trying to visualize what that would look like. Thanks for your attention. Paul
Hi Paul. For your first question: each panel is for a single channel. I offset the exciters when using 1 per panel so that any troughs in the frequency response on one panel would be filled in by the other. The placement of the exciter on the panel does have a pretty substantial effect on frequency response, so offsetting one helps smooth out the total frequency response between the 2 panels. As for your second question: it's better to vary the size of the panels rather than the size of the exciter to bring out different frequency ranges. Larger panels have better low end. Smaller panels have better highs. You may be interested in this follow-up video I did as well: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XC814uQjlaE.html
@@AmplifyDIY Hi Steve. That was a good video. I did hear differences between the various shapes and processes. One of them was a dual exciter, but no mention of where they were placed. I think these sounded the best. I’m thinking of coming out of my Fosi amp and going into a Xover to separate the frequencies into low and high. The low frequency wires would go to a larger panel and the high frequency to a smaller panel. So two panels per channel. Thanks for all your help. I think I’m going with the Fosi BT30D that has a sub woofer output. Paul
tried to build these myself. One thing that i thought was crappy was that they where soooo ineffective, the db/w is not good to say the least. I seddeled with my much more good sounding pre owned Dynavoice shelf speakers that have so much more frequency spenctrum with their 5.25" mid and silcdome high. Bought on marketplace for like 50 bucks
Hi Jimmy - I actually found that the db/w was *better* for these exciters than a decent set of Klipsh bookshelf speakers: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XC814uQjlaE.html
If the magnets were hard mounted would more of the energy go into the foam increasing volume and range? This only occurred to me when I was watching the vibration portion of the video and saw the magnet bouncing on the low frequencies. It occurred that maybe some of the energy was lost.
Great video! I want to make one myself. I have a question though. How long can you leave these to play music or movies all day? I have read on other comments that the exciters get quite hot when left running for a while. Can you please confirm if there are heat dissipation issues with these exciters? Thanks!
Hi Axsun - during my follow-up video here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XC814uQjlaE.html I had them running for several hours at a very high volume level. They became a little warm, but certainly not anything close to hot. Great question, and thanks for watching!
They work great with vocals! The panels need to be allowed to vibrate, so they need to be mounted in a manner that allows them to be suspended. If you mount them near a wall, you should place some acoustic insulation behind them on the wall so that they don't produce interference reflections. They would work fine with a TV, but they need their own amp. You can't plug them straight into most TVs and expect them to work. Great questions!
did a drywall job where they had some built in speakers ....had to tape the speakers into the wall ...it was odd then again the dude had TV in almost every wall .....he was some young millionaire making bank selling medication online.
A question, would it be better to mount a speaker not by the foam? But by the body of sound actuator to something ridged and heavy? That way the half of the impulse of the actuator won't be lost to pointlessly vibrating actuator it self and not the foam board??
So these must be parallel to the wall? How about listener position? I have pretty small room, my NS-1000m taking space...so i'm considering alternatives. These seems very interesting. In theory, at least.
Hi Alex - they work well in a small space, but I do have a few tips: 1) Add some acoustic insulation to the wall directly behind the speakers. They emit sound from the front and back, and you don't want the sound from the back reflecting and interfering with the sound from the front. 2) Add a small subwoofer to round out the sound. 3) The farther apart you can place them, the better the stereo image will be. Good luck!
The thrusters are now $45 each.....I guess sales have gone up after you suggested them. I was going to build a set of speakers for fun but not for that price. Unfortunately I can't find a cheaper replacement exciter.
They are currently listed for $23 at parts-express.com. They are backordered, but it looks like if you order while backordered they won't charge you until they become available - estimated for January. Good luck!
Based on the harmonic wave patterns in the Tech Ingredients video, I believe that would cause even more harmonic resonance which will make the sound very lumpy (some frequencies really loud, others weirdly quiet)
Just a heads up for anyone doing this. I just completed them, but did some more research on home made DML (Flat panels). The audio quality increases IMMENSELY if you coat the front and back of both panels with 2 layers of a 1:1 Wood Glue and Water mixture after sanding. I tested them before and after, and the coating adds a lot more low end, and overall makes the speakers sound significantly better. I also found it important to hang the speaker wires coming off the panel away from the panel. You can bend the attachment point with pliers, its just important the wires don't touch the panel too much. I'd also recommend tinkering with your eq settings. I found a round curve downwards shape worked best (Lets say 1 cm downward for the lowest end 60 to 150hz, 0.8 cm for 150 to 400 hz, 0.3 cm for 400 to 1 khz, 0.1 for 1 to 2.4 khz and 0.4 upwards for 2.4 to 15 khz)
@@Jalahr77 No, but you can include paint. As long as you keep the 1:1 ratio of water and glue (maybe with some extra glue) you can add certain pigments. The only thing is, since you're not supposed to add the mixture to the edges, you may have to to make the whole thing look even. If you do do it, make sure you only do one light layer on the edges. The big thing is hardness vs weight. The Foam panels work so well because of their light weight. By removing the melted surface and adding the glue mixture, it creates a hard but still lightweight surface. This has a whole bunch of complex interactions due to the reverb that leads to the amazing sound, but all you need to know is it sounds great.
@@saimnaeem9 I'm assuming the glue works well because you're adding a bit of rigidity to the panels? So, instead of a paint, maybe try a varnish, or even a couple of light coats of polyurethane. Would be interesting to see how different coatings would affect the sound.
Based on all the feedback and comments I've received on this project, I'm planning a follow-up video where I'll test the following: 1) Mount the exciters on posts so that the exciters move less, and compare to the hanging system shown in this video. 2) Compare these panels to a good set of bookshelf speakers. 3) Add a subwoofer. 4) Try painting or possibly fabric-wrapping the panels, and compare with non-painted. What else do you want to see me try?
Different sizes of panels. Also, play pink noise through them and examine the response curve (there are many apps that use your phone to do this somewhat decently)
Do a two-panel per channel setup by running high-pass/low-pass filters in addition to mounting the exciters for better clarity. Play around with separating the waveform coming from the front and the back of the speaker - speakers can cancel out their own sound by not separating the waveform between the front of the speaker and the back... so while it may sound good, you may get much better performance with some sort of box.
@AmplifyDIY Hello! I want to do some projects with those exciters, only problem I can´t find foamular in my country any other material like compressed styrofoam can work?
@@AmplifyDIY You need to adjust your language a bit... It's not "speakers", it's "vibrulators". And it's not "amplifier", it's "sound-make-it-happener". And so on and so forth...
These really bring the thunder. They're basically Fac-tree. A guy is pretty impressed with these soundalators. I will go ahead and do the right thing and build these right now..... no..... no I won't, I'll just like and subscribe so that's good.
That guy from "tech ingredients" is extremely smart, his projects are crazy good and interesting. Love watching his videos! Thanks for putting to the test this one, I'm really looking forward to build them myself. I have a good quality amplification and I'm very curious how those panels would perform, but I would definetly build those bigger panels too for the lower frequencies. Cheers!!
All you have to do to realize they are NOT the world's best speakers is look at the measured response curve in the original video. They have no bass response whatsoever. I like his channel too, and this was the first video of his I watched, but I think his claim in this case is pretty bogus.
I've been watching Tech Ingredients years, and full disclosure, am a fan. That said, and knowing how technical the host is, and the incredibly broad his subject matter is, his "claim" of "best" is up to all the ingredients (meaning criteria) one puts into the word "best". Personally I think its his dry, New England humor that lets him say "best" with a straight face, and he probably privately rolls his eyes when someone forms an opinion either way ("omg, he said that, so its gott'a be true" or "he's completely bogus") without ever doing their own research. This channel, does its own research! Nice content here. But was hoping to find more DIY Amplifier related things :D
@@gorak9000 What are you comparing them to, and in what way? Do you even know what actually goes into a typical off-the-shelf set of speakers? . I have no idea what you do or don't know. I'm just trying to find out what your specific basis for comparison is, because your wording really just makes it sounds like you're being contrarian for its own sake. . Irrelevant and contextless technical jargon...check Statement that they lack a feature they weren't claimed to have in the first place, and which is a completely separate consideration anyway...check Preemptively defensive, passive-aggressive, and completely irrelevant statement of support for the individual who made the disputed claim...check. . Just sayin...you might want to reconsider how organize your statements, going forward.
@@DoremiFasolatido1979 I'll admit that I haven't built these DML panels yet to actually compare them (but considering the cost, I will at some point), but I did build a set of these a couple years ago, and they are simply amazing (as they should be, with just the drivers alone being $1k for FL FR and C) speakerdesignworks.com/Finalists_5.html I linked to the page with the measured response curve, but you can navigate to the other pages to see the whole thing. That was my first foray into DIY speaker builds, and honestly my first "big" woodworking project. I think they came out really nice, even if years later, they still don't have veneer on them. Build pics here: goo.gl/photos/icxCcHKanjKtUNLMA They have really flat response down to 40Hz, and up to 20Khz. If anything needs improvement, it's my room response. I definitely have some room resonance issues at the low end as they're in a rectangular, fairly small room. Some measurement with REW and some bass traps are definitely needed! I get everything he mentions in the video - the "wide" soundstage, not being able to identify where the speakers are, but instead being able to point to where each instrument was on the stage in the initial recording, etc. You don't need a panel speaker to get that, just a well designed set of "monitors" (I'm not sure I'd call a ~50lb speaker a "monitor", but that's what the designer called them) can get you that. To my ears, every time I hear these panels, which admittedly is through a youtube video (and probably camera microphone, etc), always in a super echoey room (just important as your speakers is the room they're in, and the acoustic treatment of said room), and they sound thin and tinny, and muffled at the same time - like not only are they missing the low end, but also the high end as well.
I built a set of these with sheet balsa wood, roughly 90cm x 40cm with the Dayton Audio exciters placed 2/5ths in and 2/5th up from the the bottom corner ( mirrored pair ). The result is very good, good treble, good mids but with light bass. Good enough for a small room / study / bedroom for casual listening. The bass is light but responds better the farther out from the wall you suspend them.They have to be at least one foot from the wall for bass to be half decent. I ended up angling mine slightly towards the 'listening point' which gave better outward reflection of sound off the wall and out around the room. The overall sound is surprisingly good for a very inexpensive project. Definitely worth a try and I have made mine into artwork so that they appear to be paintings, I now have two 'Banksy's' as my speakers.
I really appreciated this counter-point. Anyone can claim good sound on a youtube video. This is our version of peer review. Thank you for taking the time to do it.
it's a great channel but they're pretty off with speakers. If you want panel speakers that are actually good, you need to go electrostatic and they need to be BIG. I'm speaking 2ft x 6ft5 size.
@@dingdong2103 you clearly did not pay attention when watching their videos, or you would know they actually talk about the drawbacks of their speaker designs, how to compensate for them, and what is actually better.
I really hope painting or at least fabric wrapping works on these. Imagine in your living room, on both sides of the TV, 2 decorative paintings hanging on the wall, that are actually speakers! It's like "Stealth Speakers" if such a thing exists. (How to hide the wires? Ummm, we will cross that bridge when we get there...)
The good fabrics for speakers are such because they're 'acoustically transparent'. If you fill the pores of the fabric with paint that would no longer be true.
I guess you could place them behind a deep-ish frame or canvas? It would also be useful for the wiring and mounting. But I'd keep the fabric really light so that it doesn't interfere much; probably dyed instead of painted too.
How to hide the wires? Just disguise them as wires for the lights for the “paintings”. Get 2 flat panel lights, mount them to the wall, and put the “paintings” speakers over those lights. Mix the speaker wires in with the light wires.
If you want to go for a full sound, you just need to daisy chain a subwoofer with build in Crossover before each panel. That will step up the sound tremendously.
I wouldn't do that as you are trying to connect a low wattage thing (the actuator) to a higher wattage thing (subwoofer) and the amp won't play nice at all with a mismatch like that. Everything in a series is going to receive about the same output of power, of course a little diminishing because of resistance from start to finish. If you did this you you are either under powering a sub woofer; which is pointless, or you are overpowering the actuator; which damages that.
The full set of speakers from Tech Ingredients includes a total of 8 different panels, using different materials, shapes, and sizes. I elected to build just these 2 panels as a way to dip my toes in the water of DIY speaker systems and to see if their claims could possibly be true. The foam boards each cost me around $5, and the exciters were around $25 each. I can’t believe the sound quality I’m getting out of a set of speakers I built in a few minutes for only $60 in parts!
To be fair, he says worlds best speakers under $115 You only made ONE speaker type, he made TWO types and kinds and used them together to create a synergy. He did centered vs 2/5 3/5 rule. You are not giving this a fair shot
@@RPRsChannel yes you can absolutely paint them. Latex paint with a smooth roller turns out nice. Here's another link that may interest you. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-x5R-sB5vRuo.html
@@RobertEmery when the man made the speaker he didn't make one he made four different ones that were meant to be played together for the perfect sound this cost $115 This guy made one of the four speakers and is giving his opinion He said he was impressed but he also said that it was lacking in certain ranges of sound This was addressed by the original video by having four speakers playing as one for the perfect sound. So yes, I have every right to complain. As this guy did not give it a fair shot. His complaints would have been taken care of by making the other three speakers just like the man in the original video did. If you repainted the Mona Lisa with only one color of paint.. you could not sit back and go, I don't know the Mona Lisa's pretty good but it's lacking. And yes , if this guy said oh my God these speakers are amazing, I would have still said he didn't give it a fair shot because he's basing that judgment on one , out of four of the speakers created. So I would say, brother if you think that's amazing, make the other three speakers , to take care of the fact that they have to be played all together , for the best sound reproduction. But you seem rather simple minded let me put it another way. If you get with a chick that's supposed to be the best lay in town, but you only let her give you a Bj, you can't fairly say you really gave it a fair shot can you?
Great video. I fell down this rabbit hole a few years ago just for fun. Bought about 8 different exciters and a bunch of materials, from pink insulation sheets, white styrofoam sheets, a ceiling tile, and a few items from a thrift shop, such as a large thin plate and a pane of glass. I even tested with a cardboard pizza box, which sounded better than expected. I also put one exciter on the back of a guitar and one on the back of a full sized upright bass. These two tests turned out better than everything else. No surprise, as they are acoustically tunes enclosures designed to produce food sound. In every test, the main thing lacking was bass. Adding a subwoofer would be the key to creating a system that delivers good sound for all types of music.
30 years ago i had a set of blaupunkt titanium flat disc speakers in my car. same idea a flat disc and an exciter and it sounded incredible. smaller harder discs should get the high treble sounding good.
The sound extremely well in the high notes. If you listen to Jazz and classic, they are insane. Violins, Cellos and Brass instruments sound like they are right next to you. You definitely NEED to have a sub woofer for the low frequencies. nothing big, i use a 50€ sub woofer and it does the trick. I compared them to 2000€ home studio setups and the styrofoam speakers are noticably better for this kind of music. All the sounds are much clearer and easier to distinguish. The 2000€ home studio setuop shines in its versatility and adaptability. it works for all genres, all versions and has a lot of settings that work very well.
I ordered (and have received) the parts and found that our local hardware store stopped carrying the pink Stryofoam insulation panels. However, their new supplier offers black Styrofoam panels and they assured me that these were just as good (although I didn't tell them I was building speakers either LOL). I opted to try the 1" x 24" x 96 " panel cut into two equal halves and found that these speakers (although not studio quality) are perfect for sitting outside around our fire pit in the summer. They work really well, and the sound is above average...much better than those little outdoor bookshelf speakers one usually sees for sale at 4 times the price.
the Problematic with the missing "body of the tone" at around 9:00 is due to your amp. I have the same one and the sound is (for my standards) extremely poor. In case you have something like a Yamaha AS-700 or something similar, try it out. I'm pretty sure you'll love the result.
I think another issue is probably that there is no woofer and it's missing the fundamental frequency. I'd be surprised if those played anything below about 100 Hz.
@@timokirchler use the adhesive it comes with or use heavy duty epoxy. Just buy a couple and mount them to random shit. Its loads of fun. Then you can get serious with it if you want and do the foam board, sheet rock, etc. I highly suggest watching the Tech Ingredients video on using exciters/tactile transducers.
I've been wanting to install some speakers for watching films in our living room, but my mum has been adamant about not having speakers on the wall 'ruin' our living room. I might try building these and seeing if you could turn them into decoration at the same time...
@@lancecluster Next time I use better ones but this is my setup: DAEX25X4-4, DAEX25CT-4, DAEX25W-8, two DAEX9CT-4 (these are way too weak but I still added them to the setup). No need crossover. I recommend to use orthodynamic or ribbon tweeter also.
Don't paint them. The testing was done with both sanded and un sanded. Some thing about the porosity of the sanded board improved the sound quality over the sealed board so I'd you paint it you loose the sound quality you were looking for in the first place.
I made Speakers DML speakers like these for my PC. My monitor is close to the wall and the speakers right behind to it. The sound stage of these things is amazing, because to get similar result would require book-shelf speakers to be placed at least a meter behind the monitor. Also - a sub is definetly needed. Fun fact: The reason why DML speakers aren’t popular in consumer market is because they have a patent that have been bought by military.
Tech Ingredients said you can spray paint the polystyrene panels as long as you keep the nozzle of the spray paint can at least 40cm away from the panels and it doesn't hurt the sound quality
@Billy McCord - The problem with a lot of us long time fanaticals is that Derek's unique etiquette is now so second nature, that we now speak it in our every day lives without even knowing we're doing it. It's fine.
That was great. I made some of these in the 70's with styrofoam ice coolers tops. They sounded better than any speaker we had for a car back in the day. I called them transducers. Glued to the tops of the coolers. I did have a 40 w booster equalizer to give it a loud clear sound. The equalizer made all the difference because I was able to adjust the sound of the music to the best performance. This was in 1974 technology. Enjoyed your show and it sure brought back some good memories.
Hey, I remember some of that, back in the day a friend of mine had an old popular mechanics magazine where they explained it (transducers) and called it something like "the speakers of the future"
Radio Shack used to sell speaker's that were "Flat Panel." They were sold in the mid 70's to early 80's. The sound of theirs was awesome,and were no more than an inch thick!
Hahaha. In the early '70s, I used to obsess over the Radio Shack catalog, checking specs and imagining all the stuff I could buy and/or build. Same with Heath Kit.
I've seen versions of the concept, used as car speakers... You just strap them to the sun visors, no need to make holes in the doors. (Probably needed a sub of course... but still.)
"Distributed mode loudspeakers" wasn't invented by the Tech Ingredients guy. A company called NXT popularized it decades ago. So fear not, exciters aren't going anywhere.
I wonder if they would perform better or worse if they were suspended by the driver instead of the panel. I could imagine a tripod setup connected to the driver somehow with the panel fully suspended so it's range of motion is not impeded by the hanging strings.
While I love classical too there's a lot of more modern genres of music that's just as awesome if not even more, there's even a lot of modern genres with music just as complex if not even more so musically and composition wise (some magnificent progressive rock and metal come to my mind first as I am rather partial to rock and metal but there's a lot of electronic music too that's pretty darn cool). Also while classical is good at conveying certain feelings some more modern types of music are better at conveying other types of music, for example I haven't heard a classical piece that can convey aggression anywhere near as effectively as rock or metal. Also when talking of acustics some speakers could be great for classical but rubbish for rock, techno, blues or some other types of music that tend to use different frequencies more than classical does, and vice versa, it's actually relatively easy to make speakers that sound good for classical when compared to many more modern genres.
@@Warutteri "I haven't heard a classical piece that can convey aggression anywhere near as effectively as rock or metal." - Check out Trendy Junky by Chiens, possibly the most aggressive thing i've ever heard
While tastewise it's a matter of opinion, which @Warutteri already said, for testing speakers, classical isn't the best genre. It has an emphasis on mid-tones and doesn't represent the taste of most people.
I have a pair of Carlsbro flat panel speakers and use one of them for busking. The sound carries amazingly well outdoors even at long distances in noisy places, but they’re not any louder close-to. Also stops the issue of people close to the speaker talking very loud. Flat panel speakers have amazing properties! The sound is also really clean and well-defined even at a distance.
