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Mr. Schmidt's - a Nick/JR collaboration

jr@macjr@mac
in DIY
Nick will, I am sure, chime in with more information on his thought process putting the drivers together and his plans on finishing and how both aspects gave rise to the name.

Here is the unfinished cabinet:



Using this woofer:



And this tweeter:



Here are the in-box measurements (small cabinets are a pain):



Here are impedance profiles of both speakers overlaid (good consistency):



Here is the measured on-axis and reverse null:



Here are horizontals (I bet you can figure out why I left that broad "BBC Dip" in there):



Here is the crossover (note reverse polarity):



Picture of finished crossovers (I found black hot glue - yay me!):



Brief summary: the bass from the Eton is pretty legitimate, the tweeter has a very nice, sparkly sound - at first I thought it might prove to be fatiguing, but on certain test tracks I use for ssssssibilance torture they did just fine. Overall, they perform very well for a small bookshelf.

I have a signature.
Tagged:
kennykNicholas_23D1PP1N
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Comments

  • ani_101ani_101
    Which tweeter is that?
  • WolfWolf
    LPG I can't remember the model number. IIRC, they were used in some Totem models. I get the name, being a German theme here...

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  • Nicholas_23Nicholas_23
    Not going to lie , wasnt sure if the xovers would fit in the box JR . Thanks for knocking out the crossovers for me. cant wait to give them a listen.
  • Nicholas_23Nicholas_23
    Heres a link Ani  , http://site.diy-loudspeakers.com/images/datasheets/loudspeakers/lpg/LPG_TWEETER_26T.pdf
  • Nicholas_23Nicholas_23
    The name was a play on the Messerschmidt BF109 WWII fighter plane. The color scheme will be similar to the plane in the picture below.
    Related image
    D1PP1N
  • WolfWolf
    kein swastika, ja?

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  • Nicholas_23Nicholas_23
    Minus the sawstika , but will have the iron cross
  • rjj45rjj45
    @JR - back to your roots indeed!
    Cheap, no name drivers beaten into submission for the sake of the music.
    But Chahly - Stahkist don't want speakers that look good, Stahkist wants speakers that sound good!
  • PWRRYDPWRRYD
    edited March 2018
    Oh can't wait to see what you come up with!  I'm a bit partial to the Junkers JU 87 myself, but North American Aviation's P51 (all 8 versions) is my all time favorite.
  • dynamodynamo
    Back in my car audio days I used to rock a set of JL XR components and I’m pretty sure the aluminum tweeter was sourced from LPG. I always really enjoyed that tweeter. Looks like it should make for a nice sounding combo.
    Nicholas_23
  • R-CarpenterR-Carpenter
    Nicholas_23 said:
    The name was a play on the Messerschmidt BF109 WWII fighter plane. The color scheme will be similar to the plane in the picture below.
    Related image
    Grandpa blew one out of the sky. Got the red star for it too.
    :)
    PWRRYDkennykJasonPaudioanarchist
  • jhollanderjhollander
    PWRRYD said:
    Oh can't wait to see what you come up with!  I'm a bit partial to the Junkers JU 87 myself, but North American Aviation's P51 (all 8 versions) is my all time favorite.

    Last year at MWAF we spent an extra day the Air Force Museum in Dayton.  Lot's of old and new aircraft, including several P51 variants. I was able to show my wife all the McDonnell Douglas aircraft and missiles I had been around and worked with (not the Stealth bomber however).
    PWRRYDkennykNicholas_23ThumperTomJasonP
     John H, btw forum has decided I don't get emails
  • WolfWolf
    Don- I would not think these are cheap no-name drivers. That tweeter was about $50 in its day, and the woofer is of course more expensive than that.

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  • Nicholas_23Nicholas_23
    edited March 2018
    The name was a play on the Messerschmidt BF109 WWII fighter plane. The color scheme will be similar to the plane in the picture below.
    Related image
    Grandpa blew one out of the sky. Got the red star for it too.
    :)
    Cool , was he an ace? or did he get it with his mosin ?
  • Nicholas_23Nicholas_23
    I think I posted this in a previous post awhile back , maybe I didnt . The baffles will be yellow , and I have a couple different shades of gray primer for the top back and sides. The iron cross decals will flank the left and right side of each speaker. Now , do I semi gloss everything or spay it all flat ?
  • Nicholas_23Nicholas_23
    P.S. Im not a nazi lover , just like all things WWII 
  • jr@macjr@mac
    I think Don may have thought he was commenting on another thread.

    Yeah, 20 years ago this would have been a pretty high end build. 
    I have a signature.
  • R-CarpenterR-Carpenter
    edited March 2018
    Cool , was he an ace? or did he get it with his mosin ?
    Hahaha. No.
    One of these.

    He went through Winter War and Great War. Started a Sgt. and finished, Lieutenant.



    We could have a friendly speaker shootout, :)
    Mr.Shturmovik?
  • Nicholas_23Nicholas_23
    I dont believe Ive seen such a machine , the barrels look like they could be cooled with a fluid of some sort? I wonder what those hoses at the end of the barrels run to ?
     " No ear plugs comarades , this is for the mother land" . Good lord ,could you imagine the racket ?
  • Nicholas_23Nicholas_23
    5 rounds of 9 mm and my ears are done . More like 4 . Made that mistake once.
  • Nicholas_23Nicholas_23
    jr@mac said:
    I think Don may have thought he was commenting on another thread.

    Yeah, 20 years ago this would have been a pretty high end build. 
    jr@mac said:
    I think Don may have thought he was commenting on another thread.

    Yeah, 20 years ago this would have been a pretty high end build. 
    I think youre right Johnny , probably meant for your Jrock build
  • Nicholas_23Nicholas_23
    Drock build .... sigh

  • R-CarpenterR-Carpenter
    I dont believe Ive seen such a machine , the barrels look like they could be cooled with a fluid of some sort? I wonder what those hoses at the end of the barrels run to ?
     " No ear plugs comarades , this is for the mother land" . Good lord ,could you imagine the racket ?
    4 of these
    https://en.wikipedia.org/wiki/PM_M1910

  • Nicholas_23Nicholas_23
    Makes sense to me , "Some were fitted with a tractor radiator cap fitted on top of the water jacket to allow handfuls of snow to be packed in to melt while firing."
  • Nicholas_23Nicholas_23
    I've heard of soldiers pissing on their barrels during WWI to cool them off. Im sure it happened in other theaters as well.
  • Nicholas_23Nicholas_23

    PWRRYD
  • Nicholas_23Nicholas_23
    Stopped by JR's place today and picked up the Mr.Schmidts . Needed a break from the guitar build so started on the speaker cabinets. I was curious what the decals would look like so I tapped one on . The size looks just about right I think for these cabs. Looking forward to hooking them up and listening to them. Thanks again JR for the xover work on these!
  • Nicholas_23Nicholas_23
    Which flavor of yellow though? Hmmm
  • WolfWolf
    Krylon Sun Yellow Gloss, please.

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  • Nicholas_23Nicholas_23
    Let me test these two yellows first ,and see what they look like . I'm currently leaning towards a satin finish but that could change , will see how the "body work" goes
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