ฝัง
- เผยแพร่เมื่อ 20 ส.ค. 2024
- Hello, dear audiophile DIY-enthusiasts. Today we are going to prepare another curious project - a phase-linear speaker system based on the new broadband speakers from Fostex in wooden spheroidal enclosures! Please write down the ingredients: two IKEA BLAND MATT bamboo salad bowls for each speaker, diameter - to taste: 20 or 28 cm =)))
No, seriously! I promised myself I wouldn't do it anymore... But, I did it again! I couldn't pass by! =) This salad bowls, having a very decent bamboo wall thickness, combine into a nearly perfect ball, which to me - looks just gorgeous! And when I have found (I have never experimented with them before, but I really wanted to - and dreams do come true) new Fostexes drivers with paper-banana "star"-diffusers (also known as Hyperbolic Paraboloidal Rotation) on patented from top to bottom cunning profile suspensions (not kidding and I really respect such work - fanatical search for perfection in small things... description/graphs/formulas, if you're interested - met, for example, in 85 page manual on Fostex NF-1 monitors)...
Halves - glued from inside with epoxy by rotary method (on MVP-machine =)). Joints were additionally glued by fiberglass mesh (space technology, dammit! =) - construction fiberglass self-adhesive construction tape from the nearest supermarket). Inside the spheres are completely covered with bitumen-mastic vibration absorber STP (auto-audiophiles know it ;-)).
00:32 Scalping salad bowls: multi-tool and hacksaw.
00:36 Sanding the saw cutting.
00:40 Installation of acoustic terminals.
00:45 Gluing of phasoinverters (from steel radius bends).
00:51 All-over self-adgesive vibration damper - STP.
00:56 Spacer rings (only on small spheres).
01:00 Soldering the audio-wires.
01:05 My MVP-machine for rotary epoxy-gluing
These are brilliant !!!!!!!!!!!!!!!!!!!! and they are actually the perfect shape for a speaker simply because there is very little edge difraction.
Well... yep =) Thanks.
A pair of medium and small bowls would be great to make 2 way speakers with the small ones bolted on the mediums they could be placed vertically and horizontally. The big one could be used for a small woofer.
Perhabs, but this project - about full-range speakers ;-) and, trust me - its worthy of Interest.
would love to get a more of an in depth break down of these! seems like a fun project to try to build
May the Force be with You ;-) You can find hints in the second half of the video. But each DIY-Jedi has his own methods ;-) Why limit yourself? I'm just present idea.
Hey, i actually did just the same a couple years ago. I used some automotive jbl 2-way speakers and a pvc pipe for the bass port. To my surprise they turned very good 👍
Cool ideas often come to peoples independently ;-) I came to youtube so that more of them would become known to even more interested people! I agree with you: coaxial speakers themselves ask for spherical boxes =) I will say more: my new project on coaxial speakers from Totem Acoustic Avispero (wall-ceiling mounting, finished of jute rope) is ready! The spheres of ... Coming soon =)))
Well done!
really clever, love this idea
Yep, I like it too =) Thank You!
Very cool! I love your style!
Thanks. Me too =)))
👌👌👌👌👌👌💯
I would love to test a large bowl WITHOUT the back, in an Open Baffle configuration. Would be interesting I think.
It doesn't seem like a good idea: this bowl is too small for an open baffle. I suppose an acoustic short circuit will absorb the rest of the bass.
Я впечатлен. Могли бы вы выложить видео, как они играют? Я понимаю, что звук у всех разный, но все же очень интересно.
Благодарю. Конечно, Иван. За неимением возможности услышать вживую, но располагая сносной системой и большой наслушанностью материала вживую и на ней - оценить характер звучания, пусть и весьма приблизительно - можно... Видео доступны на канале: th-cam.com/video/BKs9wgrvIfY/w-d-xo.html - большие (28 см) в закрытых 9-литровых корпусах
th-cam.com/video/lMKqi4B9mJA/w-d-xo.html - малые (20 см) в корпусах с фазоинвертором (около 3 литров).
Хорошо-бы йак и пляшуть..
Very "out of the box". I wonder how to similarly add a long "tail" like B&W Nautilus to enable full (or close to full) dissipation of the back wave of the drivers?
Why complicate? There is also a simpler "tailless solution": you just need to use a cabinets of infinite volume ;-) Joke =)) In fact, Nautilus are not "tailed spheres", they are long tapering damping tubes + unique, maximally back-open (magnetic system) speaker drivers. Spheres are a different approach to damping, minimization standing waves and resonances. Also very effective... and compact ;-)
By the way... about the joke =). What do you say about this extraordinary project from real enthusiast ;-) th-cam.com/video/GNMHVuTD8ig/w-d-xo.html
Hello, how did you make the opening for the speaker/ slice of part?
Hello. You can see it in the second half of the video (after the 30th second): using a conventional hacksaw on wood or a multitool, then - finishing on sandpaper.
La même en mode audiorama de grundig 4000/7000/8000 des années 70...voilà votre prochain défi si vous l'acceptez 😊😊
Oh, oui. Sphères légendaires. Et je l'ai déjà fait=) Eh bien, presque. Le thème de l'acoustique sphérique ne serait pas complètement révélé sans haut-parleurs coaxiaux. Besoin de trouver le temps et monter une nouvelle vidéo: plafond acoustique sphérique avec un amplificateur britannique légendaire et de grandes flèches analogiques =)))
@@Bu2rinE vous avez déjà fait😮😮😮❤❤❤❤❤ ah si vous avez des photos pour admirer je suis preneur 🤩🤩j'adore votre créativité bravo
@@yohannringot4709 Patience, mon ami =) ce n'est pas tout à fait Grundig, mais il y aura non seulement des photos, mais aussi des vidéos sur le processus de création.
What speakers are those
Marked as "Fostex 3H34K" and are used, for example, in ceiling speakers Fostex SI-1T.
Ну а типа фильтра есть, что - нибудь? Конденсатор?
Неа - лишь кусок акустического провода. И в этом прелесть широкополосных динамиков.
Dimenaion the bowl sir thanks
Small bowls - 20 cm (8 inches), large - 28 cm (11 inches). The volume of spheres are about 3 and 9 liters.
@@Bu2rinE thanks sir from indonesia
То ест рус/тэгэвьяшка..?
/ пэрэвэстыть, йак будэ по гуску../
Дивяска - китаиски, тинамика - ипонски... А акустика - русская! 😎