Old school American heavy manufacturing, the casting and machining of the bronze O/Reference parts.
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- Опубліковано 20 сер 2024
- John DeVore talks about the process of designing, prototyping and then going into production of the custom driver chassis, horns, ports and other bronze elements of the DeVore Fidelity O/Reference speakers.
With help from Tektonics Design Group
www.tektonics.com
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that older black kitty is adorable , senior cats are such wonderful companions
True!
this all reminds me of R.I.P. Bernard Salabert... Lovely work Mr. DeVore and thank you for sharing your knowledge.
Most excellent.
Reassuring to see real industrial craft being shown some love.
That knurled pattern in the ring of the woofer basket is a work of art!
Quality materials, Great craftsmanship, Great design + Great sound. Truly awesome work!
Just wow! I think the product is a reflection of its creator. John is a fascinating and intelligent story teller
I currently use Audio Note speakers but DeVore 0/96 are my end game speakers. Truly beautiful.
That is one gorgeous driver!!
John, type in Hands, powers of the metal, it’s a wonderful old documentary from Ireland about sand casting iron in the old ways when most large towns still had independent foundries. The detail and skill in the mould making part is wonderful! These castings your having made are of beautiful quality and I speak as someone who spent one summer holiday as a teenager in a small foundry where I grew up in Devon in the U.K. Oh, and the other documentaries in the Hands series which you can find on UA-cam are well worth a look as well!
Wonderful description and design, John. A friend of mine owns a pair of your speakers, and they are no doubt some of the most musical sounding speakers I’ve ever heard. Thanks for the insight.
What a refreshing change in thinking to build a no compromise driver from the ground up using the finest materials and modern processes.
The bronze chassis is a work of Art and I’m sure redefines what the performance of a conventional loudspeaker.
Also highlights the benefits of US innovation and manufacturing.!
Just picked up the Fern / Roby PTA collab bronze turntable weight. Saw you have the Fern / Roby version on your 401. Love the brass and bronze. Amazing to see that foundry at work. Thanks!
As an old school foundry man and metallurgist, kudos for going with Green Sand. Don't get me wrong, Green Sand molding is my first love but had I been in your shoes I probably would have gone no bake or shell. Fantastic work!
Love the BTS. As a high-end hardware manufacturer I enjoy all the aspects of constructing such works of art. Many people don’t grasp the amount of time and energy behind developing such things. Your careful consideration to waste and recycling is also admired. Keep up the beautiful work!
Thank you!
My family were in manufacturing all their lives. I - an accident of time, and circumstance - was closing down plants to ship out the skills to China and elsewhere. In the end I could not stand it and stopped. A wasted time. Shameful, really. Good for this guy to re-engae with the worderful world of making great things, in America. Keep it up.
Thank you, a powerful comment.
A dream speaker! Thanks for sharing John!
wow, very interesting John. Thanks for showing some of the processes involved with your speaker manufacturing! Also, I love the cats!
You could usher in a whole new era of speaker manufacture with these techniques.
The Bronze Age - I like it, it sounds modern..!
[I jest of course - you make *beautiful* speakers.]
Shed some light on good ol' American craftsmanship and know how and taking pride in doing it right. It's always cheaper to do it right the first time.
Great looking basket....it allows most of the back waves to go towards the rear of the cabinet, which is not very common
i love bronze watches. no wonder the O Ref looks wonderful to my eyes
Cool processes and parts!
Super cool video. So what about doing an optional brass upgrade for new 0/93 and 0/96 builds ?
I am loving these videos John! More importantly, I am looking at buying some of your speakers due to the information you are providing about them!
Hi Mac, thanks!
On my wishlist for sure, what an accomplishment! Kudos!
This one got you a new subscriber. You have taste and vision.
Thank you!
Great work on drivers
My TAOC FC3000 Speakers use special iron cast rings to couple the midwoofer to the front baffle for the same reason.
That’s amazing, thanks for sharing!!
love this! PHY-PH had the same idea.
'Merica! made... awesome. Hope one day I can get a pair...(speakers, not balls. I had those taken away after child #3).
As a video guy, I’d suggest changing your computer’s screensaver to be static. Or just turn the computer off. It creates a distracting jump cut anytime you eliminate a pause
Very nice!!
Interesting naming sense for a foundry company.
Right!
Not sure, but I'm guessing it's the same Indiana Ball family, five Industrialist brothers transplanted from New York, who established globally successful manufacturing businesses in Indiana as well as a ton of philanthropic work ... The Ball Corp, Ball State University, etc., including of course Brass Balls, uh ... Ball Brass.
I love this video.
Thank you.
Recently subscribed.
Like making a cast iron frying pan 😎
Great video. Nice socks! :)
The volume is too low. Maybe look at getting a microphone system of some sort. Thanks.
your amp isn't powerful enough!
@@ar_xiv No it is lower in level. Definitely had to turn the volume way up compared to the other videos I'm watching!
@@dontcare563 it wouldn't be a problem if your amp was more POWERFUL
Very very low ... Clearly no one checks the video
Nice video, except the volume is low compared to just about every other video. But please keep the videos coming. Thanks
Wish it was easy to shop for them. A list of limited dealers is hard to work with. Maybe, a PS Audio type sales style?
Really interesting stuff John. Must be an expensive speaker to produce before you even start thinking about retail margins and actually making a profit. 3D printing of large items like that can’t be far away, I’ve seen similar titanium parts produced for motorsports and cycling.
Sometimes profit is not the goal. Which in itself is profitable
@@educetheme4175
?
Help me out here ... profit 𝘮𝘶𝘴𝘵 be the goal. It's the ultimate platform of which every other element exists.
@@FOH3663 Sometimes beauty is the goal.
@@educetheme4175
Well ok, ... beauty is wonderful, but without profit, nothing works.
@FOH-3663 Love, sharing, caring for the environment, seeking beauty and purpose are all goals that work without profit, but I do agree, making a living is essential in the modern world. We are more than just 6σ cogs though.
And then someone listens to Nora Jones with them! ;^)
You are sand casting the cages yourself? WTF! WoW respect! And that is possible with American labour rates? I am not asking what one of these cages costs but I am sure it is completely nuts.
May I ask a technical question? When you go all 9 yards to completely handbuild your chassis then why don't you build an inverse tweeter (Focal style)? In terms of dynamic and distortion this is IMO the way superior design.
Literal golden ears equipment
You can always trust a cat lover.
Where can I get solid bronze wood screws to replace the ones on my speakers?
Did you look into printing the parts?
They look like Seas cones to me ...
It's beautiful, but better sounding?.. I love audiophilia. But the profit margin sure can move upscale.
Aluminum alloys are much lighter and can be much stronger than bronze! I guess bronze is a much more artsy material!
There is no universe in which aluminum is stronger in any way than bronze.
Not ever, under any circumstance.
Bronze is not widespread use because it is nearly as difficult to machine as iron, and is very expensive as a material.
Sorry, you are most likely more knowledgeable than I in terms of metallurgy, but I was thinking more in the line of aerospace technology where aluminum has certain alloys that have a very good strength to weight ratio. It just seemed like bronze was just not a material that sparked "high tech" (to me), but was probably picked just because it is a "good looking" machined material to be be used.
@@danedewaard8215 Bronze is extremely ductile and has more mass than iron. This makes it a good choice for vibration absorption. High end hand tools like planes are often made from Bronze for this reason. What this means for a driver basket is that it will not resonate (which is a common problem with drivers) as much as cast aluminum or zinc. In fact, it will be better than cast iron, though it requires much of the same high temp casting techniques employed in iron.
All that said, I am not convinced it will yield results that are worth the cost. Bronze is extremely expensive, and the casting is fairly specialized, and they are using sand casting which is much more expensive than investment casting both in terms of casting and machining.
You are right though, aluminum has a very good strength to weight ratio, which makes it very useful in aerospace. it does tend to ring though, which is why zinc is often chosen for baskets over aluminum.
Thanks for this information which makes a lot of sense, especially when you mention the fact that aluminum has a propensity for ringing while the characteristics of bronze would promote ringing far less.
Alot of talk about bronze, wich make a small difference .
Check your videos ... Vol. Is super low ....