Old school American heavy manufacturing, the casting and machining of the bronze O/Reference parts.

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  • Опубликовано: 29 сен 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
    Welcome to the DeVore Fidelity RUclips Channel.
    Let us know what you'd like to see in future videos. In the comments below or through our website:
    www.devorefide...
    / devorefidelity
    / devorefidelity

Комментарии • 74

  • @stevencanning8501
    @stevencanning8501 Год назад

    Most excellent.
    Reassuring to see real industrial craft being shown some love.

  • @Mr_J_J
    @Mr_J_J Год назад

    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!

  • @ianmedium
    @ianmedium 3 года назад +2

    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 RUclips are well worth a look as well!

  • @terencefield3204
    @terencefield3204 3 года назад +5

    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.

  • @edwardbalboa5528
    @edwardbalboa5528 3 года назад

    Great work on drivers

  • @frankverschoof8083
    @frankverschoof8083 2 года назад

    love this! PHY-PH had the same idea.

  • @edjackson4389
    @edjackson4389 3 года назад

    Very nice!!

  • @gtaveditorvids6776
    @gtaveditorvids6776 3 года назад

    They look like Seas cones to me ...

  • @edwardbalboa5528
    @edwardbalboa5528 3 года назад

    Check your videos ... Vol. Is super low ....

  • @andrejensen7837
    @andrejensen7837 Год назад

    Alot of talk about bronze, wich make a small difference .

  • @lionellandrews9606
    @lionellandrews9606 4 года назад +11

    Quality materials, Great craftsmanship, Great design + Great sound. Truly awesome work!

  • @stuartreynolds3327
    @stuartreynolds3327 4 года назад +9

    The volume is too low. Maybe look at getting a microphone system of some sort. Thanks.

    • @ar_xiv
      @ar_xiv 3 года назад +2

      your amp isn't powerful enough!

    • @dontcare563
      @dontcare563 3 года назад

      @@ar_xiv No it is lower in level. Definitely had to turn the volume way up compared to the other videos I'm watching!

    • @ar_xiv
      @ar_xiv 3 года назад

      @@dontcare563 it wouldn't be a problem if your amp was more POWERFUL

    • @edwardbalboa5528
      @edwardbalboa5528 3 года назад

      Very very low ... Clearly no one checks the video

  • @johnsimmons5056
    @johnsimmons5056 4 года назад +4

    Super cool video. So what about doing an optional brass upgrade for new 0/93 and 0/96 builds ?

  • @ericstefko4852
    @ericstefko4852 3 года назад +2

    that older black kitty is adorable , senior cats are such wonderful companions

  • @tommethans7827
    @tommethans7827 3 года назад +2

    You can always trust a cat lover.

  • @brunorivademar5356
    @brunorivademar5356 4 года назад +5

    That is one gorgeous driver!!

  • @YKsfo
    @YKsfo 4 года назад +4

    Just wow! I think the product is a reflection of its creator. John is a fascinating and intelligent story teller

  • @meinwarcrafttagebuch5142
    @meinwarcrafttagebuch5142 2 года назад

    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.

  • @NickP333
    @NickP333 4 года назад +4

    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.

  • @zanetaylor7
    @zanetaylor7 3 года назад +2

    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

  • @veryskeptical2409
    @veryskeptical2409 3 года назад +2

    Great looking basket....it allows most of the back waves to go towards the rear of the cabinet, which is not very common

  • @rudestrudedog
    @rudestrudedog 3 года назад

    'Merica! made... awesome. Hope one day I can get a pair...(speakers, not balls. I had those taken away after child #3).

  • @grgnfl05
    @grgnfl05 3 года назад +2

    wow, very interesting John. Thanks for showing some of the processes involved with your speaker manufacturing! Also, I love the cats!

  • @thomasmleahy6218
    @thomasmleahy6218 Год назад

    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.

  • @philrushton6868
    @philrushton6868 4 года назад +1

    I currently use Audio Note speakers but DeVore 0/96 are my end game speakers. Truly beautiful.

  • @silverfoils
    @silverfoils 3 года назад +2

    And then someone listens to Nora Jones with them! ;^)

  • @HandbrakeBiscuit
    @HandbrakeBiscuit 3 года назад +1

    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.]

  • @ajhuff
    @ajhuff 3 года назад +1

    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!

  • @dksculpture
    @dksculpture 4 года назад +2

    Cool processes and parts!

  • @Balooba11
    @Balooba11 4 года назад +1

    Like making a cast iron frying pan 😎

  • @fieldlab4
    @fieldlab4 3 года назад

    Literal golden ears equipment

  • @tonyedwin2836
    @tonyedwin2836 2 года назад +1

    That knurled pattern in the ring of the woofer basket is a work of art!

  • @beauranheim8694
    @beauranheim8694 4 года назад +1

    Great video. Nice socks! :)

  • @anklebar1
    @anklebar1 3 года назад +1

    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!

  • @educetheme4175
    @educetheme4175 3 года назад +2

    This one got you a new subscriber. You have taste and vision.

  • @michalispolyzos
    @michalispolyzos 4 года назад +1

    A dream speaker! Thanks for sharing John!

  • @AliGokaySarioz
    @AliGokaySarioz 2 года назад

    this all reminds me of R.I.P. Bernard Salabert... Lovely work Mr. DeVore and thank you for sharing your knowledge.

  • @Johnny-Too-Bad
    @Johnny-Too-Bad 3 года назад

    It's beautiful, but better sounding?.. I love audiophilia. But the profit margin sure can move upscale.

  • @brianrowland9993
    @brianrowland9993 3 года назад

    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.!

  • @salvadorrodenas3071
    @salvadorrodenas3071 3 года назад

    My TAOC FC3000 Speakers use special iron cast rings to couple the midwoofer to the front baffle for the same reason.

  • @mkfmkf55
    @mkfmkf55 3 года назад

    Nice video, except the volume is low compared to just about every other video. But please keep the videos coming. Thanks

  • @rotaks1
    @rotaks1 3 года назад

    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?

  • @offason
    @offason 3 года назад

    I love this video.
    Thank you.
    Recently subscribed.

  • @dilbyjones
    @dilbyjones 3 года назад

    On my wishlist for sure, what an accomplishment! Kudos!

  • @holytiger89
    @holytiger89 4 года назад

    i love bronze watches. no wonder the O Ref looks wonderful to my eyes

  • @charlesmiller6281
    @charlesmiller6281 3 года назад

    Where can I get solid bronze wood screws to replace the ones on my speakers?

  • @ScottTice1971
    @ScottTice1971 3 года назад

    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!

  • @markwilson2699
    @markwilson2699 3 года назад

    That’s amazing, thanks for sharing!!

  • @lorddarphyve
    @lorddarphyve 4 года назад

    Did you look into printing the parts?

  • @XenonG
    @XenonG 3 года назад

    Interesting naming sense for a foundry company.

    • @FOH3663
      @FOH3663 3 года назад +1

      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.

  • @danedewaard8215
    @danedewaard8215 3 года назад

    Aluminum alloys are much lighter and can be much stronger than bronze! I guess bronze is a much more artsy material!

    • @joshua43214
      @joshua43214 3 года назад +1

      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.

    • @danedewaard8215
      @danedewaard8215 3 года назад

      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.

    • @joshua43214
      @joshua43214 3 года назад +1

      @@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.

    • @danedewaard8215
      @danedewaard8215 3 года назад

      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.

  • @antoinep9733
    @antoinep9733 4 года назад +2

    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.

    • @educetheme4175
      @educetheme4175 3 года назад

      Sometimes profit is not the goal. Which in itself is profitable

    • @FOH3663
      @FOH3663 3 года назад

      @@educetheme4175
      ?
      Help me out here ... profit 𝘮𝘶𝘴𝘵 be the goal. It's the ultimate platform of which every other element exists.

    • @educetheme4175
      @educetheme4175 3 года назад

      @@FOH3663 Sometimes beauty is the goal.

    • @FOH3663
      @FOH3663 3 года назад

      @@educetheme4175
      Well ok, ... beauty is wonderful, but without profit, nothing works.

    • @educetheme4175
      @educetheme4175 3 года назад

      @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.