5:04 no way the original wooden design sounds this bad and 5:11 acrylic this good. The boxes are made out of wooden material for a reason not just aesthetics. Sure with a long pipe you will get some low frequencies but overall sound will be crap because of the high resonance properties of the acrylic.
1)Quick physics.. surface of the woofer cone , max over all travel , max volume of air need to come out without disturbing the cone to move freely=>diameter of the bass reflex 2)quick acoustic physics .. frequences to achive, shape of the woofer cone, volume of the box and shape, for those waves to bounse without canceling each other or make crossrelation to the mounting walls 3) acoustic canceling frequnces... material of the box, diameter of the bass reflex , length of that tube and also distance from a) back wall reflecting the main waves (if back) b) second reflecting waves (if in front) c) sideways in some cases to hard to explain here. Conclusion??? Nice project to spend time ... better subwoofer? NOT AT ALL !! WHAT HE ACHIVED ? THE SAME AS YOU PUT YOUR HAND IN FRONT OF A TWEETER AND LISTEN THE LOWEST FREQ POSIBLE
En pandemia la gente echó a correr su imaginación, visualmente es bonito, pero de ninguna forma mejoró el equipo que tenía, si es que eso es lo que queria lograr. Eso si, le faltaron algunas tiras led de colores y hubiera quedado genial.
What he really did here was make a port so excessively long that he changed the group delay of the setup so it sounds tighter. His port diameter is also much smaller. I'd bet he actually raised the tuning vs lowering it. It's performing more like an oversized sealed enclosure than a ported one.
So hearing the sound it’s probably worse than what it was in the stock box, way too long of a runner even tho it’s interesting to see, the size of the internal area or the compression area would be a good size without all the pipe in the way and plexiglass that thin flexes fairly easily but putting all this info together it probably hits in the lower end of the base spectrum like in one specific frequency extremely well and then above and below that one small frequency range sounds terrible. like a lack of control everywhere except in one range.
Correct. But if you build it out of bulletproof glass, or have the ALON powder made into the box, then put the components in the video into it, I would expect it to sound a lot better than plexiglass plastic. Still a creative job.
I agree one certain frequency range probably hit like a mother but the rest of it probably sounded like ass. A bunch of wasted time acrylic and PVC to me. If you wanted to see how long of a port you can fit inside of that enclosure well there you go
Another good idea is to swap the stock subwoofer driver with a better more efficient unit and perform a bass reflex port tuning make it longer to an extent and that's all in the original wooden cabinet. It would have been a far better experience.
Сделано интересно , но орг стекло всегда хуже дерева, и оно должно быть толще 15-20 мм.Тогда не будет резонансов. А тут весь ящик вибрирует и длинна трубы не поможет никак!
В самом начале видео, когда я увидел толщину листов оргстекла, сразу понял: будет красивый отстой. Корпус из переделанного унитаза смотрелся бы тоже прикольно, но звук был бы куда лучше!
@@Руслан-т7н8з если в туалете удлинить трубу слива, то получится великолепный звук журчания воды, который будет слышен в любом уголке дома. Даже без усилителя.
*Step one:* Buy Subwoofer *Step two:* Strategically destroy subwoofer *Step three:* Buy a multitude of expensive materials, unnecessary to build a subwoofer after you already bought a subwoofer to construct a Subwoofer *Step four:* Cobble everything together and waste time not using the subwoofer you first bought *Step five:* Think deeply about what the subwoofer you just did
@@alessandroacquati9233 Yeah, my guess is that it wasn't calculated at all. He probably just threw it in there, as long as possible and with as many elbows as he could fit, in order to make it look cool.
This really does not make any sense at all. The very distorted sound waves (by the tube spagetti) have to enter this tiny tube hole, travel through totally random corners in the tube and come out at the front. The resonance should be terrible. The sound will probably worse than without the tubing.
el audio esta alterado, cuando cambias para la comparación bajas los graves en el original y los subes en el que creaste, te lo digo porque en mis audífonos de estudio se notan mucho esos cambios tan repentinos de audio, aparte, la caja que creaste tiene el tubo demasiado largo y con una caja realmente pequeña, aparte el acrílico no tiene buena acústica y no creo que aguante las vibraciones, la verdad sonaba mejor originalmente, siempre va a sonar mejor el original porque fue hecho con profesionales a la medida y resonancia adecuada para el subwoofer, puede ser que ese este a una de 60hz a 30hz, pero aun así, buen trabajo, de ahí se aprende 👍
начинает идти кровь из глаз от таких видео, т есть инженеры, которые подобрали обьем корпуса относительно динамика допустили ошибку, и в размере фазоинвертора, надо было сан тех трубы вставить и из них же сделать фазоинвертор, ну а практичность материалов и речи быть не может, все будет царапаться и изнутри будет пыль, кторую никак не убрать, просто великолепный апгрейд
I use this same design in my car and I love it. It’s my favorite design for playing anything below 25Hz with just one subwoofer. It’s sort of like a T-line. The difference here is that my subwoofer is in a huge tube and the pvc inside it. Tube is king when it comes to rigidity. No bracing needed. I wish I could find somebody who can spiral my 4” PVC tube. It’s not easy without making a kink mess.
FAKE: Because the tweeters and mids should not improved their sound with Sub tub of PVC. Different boxes, different type of speaker... 0:05 bad sound, 4:26 best equalization. Lies for noobs. EPIC FAIL
В пол необязательно, по порт фазоинвертора нужно рассчитывать, предварительно рассчитав нужный обьем корпуса и определившись на нужныйй частотный диапазон. Необязательно выходить на резонансную частоту динамика, можно и немного ниже взять, можно и чутка повыше, в зависимости от аудиофильского предпочтения (жанра). Я бы сделал из фанеры, изнутри немного синтепона можно добавить, что я и сделал в своем бум-боксе с НЧ звеном на паре 5 дюймовых динамиках от сабвуферов с настольной аккустики.
Ц Надо же было так упороться Всего то наполнить короб надо было и фазоинвентор правильно расположить но нет мы будем сидеть резать трубы и оргстекло Вообще оргстекло не лучший вариант для Саба Саб чуть помощнее и этот короб разнесет
it's nice that he has the time and money to play with the pipes. I did fix a real broken subwoofer with a bigger homemode plywood box and it did improve the bass a lot. Another quick fix is to put the speaker in a pail
So funny he editted out the bass at the end of the video, to make his DIY version sound better. Definetly a cool and unique design and good craftsmanship, but the bass driver isn't going to sound any better :P
no creo que cambie mucho con el pvc mas el policarbonato, el sonido mejora con materiales semiblandos , como la madera que esta super provada, pero bueno, desde el lado artisco y en lo personal del creador me parece muy lindo,seguro lo va mejorar con iluminacion y algo mas!!, un abrazoo!!, te dejo mi like
el tubo de pvc sirve para hacer un recorrido mas largo del sonido, casi como "emular una caja mas grande" y así, realzar aún más las frecuencias bajas. Es similar a las construcciones de parlantes con "laberinto interno". He oido subwoofers de miserables 4" moviendo unos bajos poderosos solo gracias a estas construcciones tipo laberinto. Al final del video se aprecia claramente el realce en los bajos.
I was going to say the same thing as in the video it sounds the same. To do this he would need professional recording equipment to really show any real benefit to his work.
А где расчеты внутреннего объема корпуса, диаметр фазика от соотношения подвижной массы подвеса и его диаметра? Или померял штангелем-и сразу все получилось прокачать по максимуму? Ведь в конце ролика всем показали, как резко дергается мембрана диффузора на НЧ-диапазоне. Лол да и только
So cool beautiful work this man could design something and go on shark tank can you build a dog silencer the one s on the market don't work they are not strong enough
Вытащи динамик,насыпь на диффузор горсть риса.С телефона включи генератор,найди частоту,на которой рис будет почти не прыгать.Потом 343 подели на это число,а потом подели на 4.Сделай длину синей трубы полученным числом.Увидишь значительные улучшения)
@@КетцальКоатль-е5ц только надо рассчитать не только длину трубы, но и диаметр. А в этом видео сделали столько ошибок.... человек сразу видно,что никогда не рассчитывал ни саувбуфер, ни колонки.
@@Ded_den78 Учиться никогда не поздно)А диаметр лучше оставить соразмерным с диффузором,иначе ,при изменении сечения может случиться предрупорная камера,а это уже другая песня,не для этого динамика)))
👊Excelente experimento👍 Me quedado con ganas de ver si ese port ventea. Por experiencia en cajas de audiocar no creo que sea bueno en una caja pequeña ocupar tanto espacio con esa cañería, si usar caños de gran tamaño y largo como en SQL en cajas más grandes🔊.
Pero además el sonido que da una caja en madera y con otra opción adicionando una recubierta de algún material por dentro, le da cierta acústica.... con este material de acrílico, se me hace que vibraría y retumbaría el sonido. Pero muy buen experimento. buen camino de tuberías!
@@gerfobos5267 👍Me enseñaron grandes participantes de SQL mexicano que cuando se arma una caja de madera para lograr un mejor sonido hay que pegar láminas de alguna tela,esponja o según otro absorbente en caras no paralelas 🔊💪.
@@AngeldeLasTeclas si así llegue a hacer algunas pruebas, hasta para algunos medios, en botes de litro de plástico y lo cubri con tela, si suenan mas graves que con madera, perp la madera le da una acústica muy diferente. A un woofer aun se nota mas la diferencia y cerrados otro sonido mas seco. Hay mucho de como variar el audio. Me falta hacer esas tuberías 🤔😁
Very good design of that there is no doubt, but since you want it to sound good you don't achieve it that way, the subwoofers of the brands are usually designed for that type of boxes so that they have an adequate balance, but putting a drawer that is not calculated for that subwoofer or even also the port makes it not perform correctly and puts frequencies that should not be above 120hz And it resonates a lot and makes it sound bad
Mate great job 👍👍, love it . It looks amazing and really bold given the clear case and blue Coloured pipe definitely one of the more interesting speaker builds on RU-vid nice one.
Realmente impresionante el sonido que produce el modelo que has creado pero... aguanta el acrílico la vibración? Yo diseñé uno con acrílico pero sin los tubos de PVC y sonaba muy bien (también la pegué con pegamento) pero se rompió y después hice una igual de acrílico pero le apliqué sellador en las uniones y aparte le metí tornillos y mira... chulada de trabajo (así decimos aquí en México) que a alguien le gustó el cajón y se lo vendí, después hice uno mejor que es el que trae puesto el coche y suena bien, tal vez no tanto como tu diseño mi estimado, mis más sinceras felicitaciones 🍾 Un fuerte abrazo 🤗 y saludos a la distancia desde tierras mexicanas ☺️
Wow great job, loved it. What is the science behind it, what is it exactly that tube this long or with all this curves actually do to make it sound so much better? Thanks
The sound is only better because he used the camera microphone for the original sub, and a pro-quality mic for the build. Side by side, the original one would be far better.
Nice project! Music good too. Very nice design---- show piece of simplicity! The see through design allows one to see how sub-woofer technology functions acoustically without further enhancement from a low-pass filter electronic circuit.
Buscaba comentarios técnicos, así mismo es😌 sin quitar mérito pero creo que un ing no haría una trabajo de este tipo y por eso diseño la caja acústica de dónde este muchacho saco los componentes ..... Dudo que suene mejor ahora que lo que originalmente fue, solo digo que detrás de lo que era antes hay ingenieros y pues acá sin desmeritar su video, no encuentro una razón para desarmar aquella caja y hacer esto🤷🏻♂️
Good-looking sub! Similar to Bose wave technology. The bass port is so long it likely sounds similar to a sealed enclosure (tight, accurate bass) but with extended range at lower frequencies. Nice acrylic work! Definitely appears to outperform the original enclosure. 😎
@@Durkhead interesting point. I would enjoy listening to this sub in person to find out what it REALLY sounds like as it’s difficult to sample and demonstrate physical sub-sonic qualities aside from woofer movement in video. Cheers! 😃
Bose's "wave technology" is simply them using a 6th order bandpass sub design, one of the least accurate one note bass type of design (there is a reason why Bose isn't used in THX/DOLBY trademarked theaters, mix studios, or tours because they lack accuracy most pros actually know they are a joke). A long port doesn't guarantee tight and accurate bass either, in fact sealed (2nd order roll off) or transmission line designs (second order roll off) fit this category the best and instead of using a port (4th order roll off) a properly weighted passive radiator (4th order roll off) would sound much better when reaching the unloading of the tuning point. What a port does though is allow the driver's cone to manipulate a mass of air so that at a certain tuning point they can make a choice of output, depth, or a combo of both depending on what the goal is desired (for example you may tune the port to unload at 60hz in a car because you can benefit from cabin gain, while you'll lower the output and tune it to 40-20 hz to get the tactile sensation for home theater use). While I think the sub looked kickass I don't expect to have a smooth response and expect it to have a peak at the port tuned frequency and when pushed hard should also have some "chuffing/buzzing" because he didn't flare the port on both ends (if you notice on the original sub the port was flared and rifled, this is so when driver pushes/sucks the air back and forth it reduces turbulence while allowing the air mass to move smoother).
@@MrWirelesscaller that’s an excellent explanation! I’ve been studying home theater and car audio since my teens! I agree a port might increase output at a certain frequency while producing distortion and turbulence at high volume. Sealed boxes produce the cleanest and most accurate sound at the expense of lower efficiency. I love bass and personally own a 1500-watt Definitive Technology home theatre subwoofer with two built-in bass radiators (woofers with no magnets) like the ones you mentioned. Bass is deep, thundering, and clean - impressive to say the least considering its compact volume of about 1.2 cubic feet. This acrylic sub does look great though, i think we all smile at the finished product. 😎👍🏼
@@rajgill7576 haha, yeah a few spelling errors. But the best subwoofers you can buy don't sound like bass. It's almost as if Thier not even there. Your not meant to notice.
Ladies, ladies...I just happen to have a degree in unnecessarily long, blue pvc pipe, speaker box porting from the very prestigious online University that rarely attended...I'm actually a doctor in the field now they say, no big deal, but enough about me. This, my small brained friends, is quite possibly the single greatest sounding DIY, unnecessarily long, blue PVC ported, acrylic box speaker ever made!! Of course to the untrained ear I'm sure it sounds worse than the speaker on a.1980s Texas Instruments Speak n Spell but to me and my highly trained "golden ear" if you will, this puts 99% of the high end audiophile mumbo-jumbo to shame! Thank you sir, this makes every penny spent on my higher education worth it! 👂🔫
That doesn't make any acoustic sense. Just a few of random pipes and acryl without any calculations. Some boom boom for lovers of low ambition disco alfter a few glasses
A única garantia de mudança foi na estética. Vídeo editado e o áudio pode ter sido simplesmente equalizado no projeto final, sem contar que ficou feio.
really crappy !!! enclosure and cone are BUZZING. because, the enclosure is NOT rigid enough and the driver/speaker was spec'd for a SEALED enclosure.!!!!! googletranslate
