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The Juggernauts - a high end large format 3-way

NavyGuyNavyGuy
edited July 2018 in DIY
I realized I never posted about these over here and not everyone browses Tech Talk anymore. These were supposed to be my final design team build but life got in the way and they've been going very slow over the last year. I started working on these in August of 2017 and am almost finished now. I don't have all the photos on my phone of the build progress so I'm going to link to the Tech Talk build thread for now.


These use the Morel Supreme ST-1108 tweeters, Vifa NE149W-08 midrange, and Dayton RSS265HF-4 with matching passive radiator. The cabinets have a plywood subframe with an outer layer of MDF on the sides, back, and bottom with a layer of green glue in between. The front and top is solid black walnut. View pictures and more info here: 

http://techtalk.parts-express.com/forum/tech-talk-forum/1353116-design-team-build-3-the-juggernauts-also-know-as-the-better-late-than-never


I'll update this thread with some pictures later.
D1PP1N

Comments

  • NavyGuyNavyGuy
    This is the almost finished cab  

    GowaTurn2S79104thtryD1PP1Njr@macJasonP
  • PWRRYDPWRRYD
    Love the overall look and especially the walnut.  Nice work Sir!
  • GowaGowa
    Freaking gorgeous!
  • NavyGuyNavyGuy
    Thanks guys. These have been a long time in the making and I'm almost completely done. Have to finish soldering up the mid/tweet crossover for one side tonight and install the drivers and crossovers into one of the cabs. Then it's done! I started these almost a year ago, so it really feels good to be this close.
  • jhollanderjhollander
    One of the best sounding speakers at MWAF Saturday.
     John H, btw forum has decided I don't get emails
  • 6thplanet6thplanet
    Yes, vury nice!! =)  Sounded great
  • NavyGuyNavyGuy
    jhollander said:
    One of the best sounding speakers at MWAF Saturday.

    Thanks John. Both of your builds were great as usual. I was really impressed with how deep the bass was on the coax build.
  • NavyGuyNavyGuy
    6thplanet said:
    Yes, vury nice!! =)  Sounded great
    Thanks. Did you have a build this year? I don't remember seeing one.
  • 6thplanet6thplanet
    Nope, moved in December, just got my garage built, getting all my junk outta storage next week. God I miss being able to build stuff!!!
  • 6thplanet6thplanet

    D1PP1N
  • jhollanderjhollander
    Nice, that almost looks photoshopped
     John H, btw forum has decided I don't get emails
  • 6thplanet6thplanet
    :/ John, sorry I missed you at the show this weekend! Also missed your Synergy horn project, which I definitely wanting to hear.  :/
  • NavyGuyNavyGuy
    John, how efficient are those Synergy horns?
  • jhollanderjhollander

    My horn is about 86 to 87 dB at 2.83 volts.  The Danley horns are well over 100 dB at 2.83v.

    Weird observation-> after both events I've have to use soap and water to clean a giant patch of finger prints from the inside of the horn.  Hopefully no one poked a hole in the mid.

     John H, btw forum has decided I don't get emails
  • NavyGuyNavyGuy
    jhollander said:

    My horn is about 86 to 87 dB at 2.83 volts.  The Danley horns are well over 100 dB at 2.83v.

    Weird observation-> after both events I've have to use soap and water to clean a giant patch of finger prints from the inside of the horn.  Hopefully no one poked a hole in the mid.


    That's interesting. I would have guessed they were more efficient based on how they sound.
  • WolfWolf

    That is mainly due to the directivity.


    InDIYana Event Website

  • PWRRYDPWRRYD
    Yes they sound VERY dynamic.  I would have guess low 90's at least.  I was very impressed with them at InDIYana.  I also thought it was awesome when someone asked you John if the horn loading made the crossover much simpler.  Your off the cuff reply was priceless!
  • jhollanderjhollander

    Seriously though Kerry's speakers sounded like what I would have wanted from this speaker. 

    The x-o was redone from Fort Wayne where it sound like crap.  At MWAF issues were nasal/ horn with some vocals, but that's hard to distinguish from added depth.  There's probably no way around this with an offset driver entrance into the horn.  Could also be from the tweeter issue below.

    The XT25BG30 has a hump in the top end that bugs me.  I can't bring up the highs to improve the openness without the speaker sounding bright.  I also told myself no tiny notch on this budget speaker build, maybe a stupid decision.

    Woofers, meaning subwoofer DCS165-4, seems to have a slight rising low frequency response that I missed in several builds.  Tuning is spot on but the response is peaking a bit. This results in some mush, smear, boom on some bass transitions.  I never hear this at home as my room sucks out near 45 Hz.

    Still the lowest midrange distortion speaker I own.

     John H, btw forum has decided I don't get emails
  • PWRRYDPWRRYD
    Wait?  What???  You don't think you own the very best sounding speaker that should have won best in class at MWAF if it weren't for those silly judges' bias?  How refreshing!   B)
  • WolfWolf
    Hold on now, Craig, you're starting to sound like someone else with the same name....
    PWRRYD

    InDIYana Event Website

  • jhollanderjhollander
    Craig, I actually got Kerry's second place award in the over $200 class. Javad's Ceramicos were 3rd.
     John H, btw forum has decided I don't get emails
  • PWRRYDPWRRYD
    Wolf said:
    Hold on now, Craig, you're starting to sound like someone else with the same name...

    Tongue in cheek Ben.
  • WolfWolf

    Since we've sidestepped a smidge...

    One judge I know as Jerry, according to the notes. And the other 2 were sparse; "2.6kHz HP is low for a 0.75" dome." said one, and the third just said, "Nice Speaker System."

    Really? Ya call that feedback from professionals? I'll post the score majority over on PETT...

    rjj45PWRRYD

    InDIYana Event Website

  • PWRRYDPWRRYD
    I sure wouldn't want to be a judge at MWAF!  First off I don't think I could give any pair of speakers a really good evaluation with only 3 minutes of music.  I'm sure I could hear blaring issues.  But in the last several years of DIY events the bar has been raised so much that few, if any, designs have real blaring issues.  It comes down more to individual taste in voicing.  The other points awarded like creativity and craftmanship...  way too subjective IMO.  I won't give any examples as I don't want to step on any past winner's toes but I've seen some and thought "WTH?  Did you even try to hide the seams?"  Or "who would want that in their living room?"  It's just way too subjective.  
    greywardenjr@macS7910
  • NavyGuyNavyGuy
    Finally got a chance to throw together the crossover schematic and box dimensions. Added a few more pictures as well. Ignore the wattage rating on the resistors. I forgot to update that before saving the picture. They are all standard 10 watt except for the 2.5 Ohm on the woofer circuit. That one is 4 of the 10 Ohm green Mundorf resistors from Madisound paralleled to give me a 2.5 Ohm 48 watt rating.

    Unfortunately my wife likes the way the look, but thinks it ends up being too much wood in the living room with them as the mains  :s So these are going to end up upstairs in a room that is probably too small for them...



  • rjj45rjj45
    Gotta honor the "WAF", no matter what.  So you're going to move these beauties out and go back the the Boomsticks?

    But Chahly - Stahkist don't want speakers that look good, Stahkist wants speakers that sound good!
  • MartyHMartyH
    Wow!  Those are beautiful!  The aluminum feet are unexpected, yet work perfectly.  Wonderfully done, Kerry!
  • NavyGuyNavyGuy
    rjj45 said:
    Gotta honor the "WAF", no matter what.  So you're going to move these beauties out and go back the the Boomsticks?

    Yeah, the Boomsticks will stay in the living room for now. 
  • NavyGuyNavyGuy

    MartyH said:
    Wow!  Those are beautiful!  The aluminum feet are unexpected, yet work perfectly.  Wonderfully done, Kerry!
    Thanks, Marty!
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