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New 3 way project - The Clinchers!

PWRRYDPWRRYD
edited June 2018 in DIY
I absolutely loved the results of my recent 2 way project, the Keramiskas, which used the SB15CAC-08 woofers and the RT1.3WE planar tweeters.  One of the best parts was the crystal clear midrange from those SB ceramic drivers.  The planar tweeters were spectacular too.  The only down side is that the SB drivers only have a SD of 82 cm^2, so limited bass/SPL.

Enter the new 3-way project...  "The Clinchers".  This project will use the same awesome RT1.3WE planar tweeters and SB15CAC ceramic mids...  just shake, stir and add in a pair of Peerless NE225W-04 woofers!!!

The woofers will live in their own separate vented bass bins.  The MT's will sit on top in new sealed enclosures.  The bass bin enclosures are about half way built... pictures and more details to follow.
Nicholas_23kennykSilver1omo
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Comments

  • D1PP1ND1PP1N
    Sweet!  Good name. 
  • DanPDanP
    Nice choice on the woofers.  How do they model in your intended enclosure?

    Dan
  • jr@macjr@mac
    I think 8" 3-way will be my next project(s).
    rjj45
    I have a signature.
  • PWRRYDPWRRYD
    edited June 2018
    DanP said:7
    Nice choice on the woofers.  How do they model in your intended enclosure?

    Dan
    Thanks.  The woofers were the door prize I won at the first official DIY Dakota.  I think Menicus was the sponsor.  JR?

     F3 = 34 Hz, 108 dB @ 70W right at xmax
    rjj45S7910
  • jholtzjholtz
    I'm looking forward to hearing these!

    Jim
  • PWRRYDPWRRYD
    I don't know about you guys but I love the performance of the Precision Sound ports with their huge flares...  but I really don't like how they look, at all honestly.  To me they just look like cheap plastic crap.  Because of that I will never mount them on the front baffle.  In this project I am using a pair of their 3 inch ports.  They will be rear mounted.  Due to the volume and low tuning frequency these need to be pretty long.  So to make them fit in my enclosures I had to cut and glue them into a 90 degree elbow.  Pictures to follow.
  • Nicholas_23Nicholas_23
    Is it too late to slot port them?
  • PWRRYDPWRRYD
    Nicholas_23 said:
    Is it too late to slot port them?
    Yes.
  • Tom_STom_S
    Those woofers are a nice door prize! I hope you'll bring these to Grinnell so I can hear them. 

    And I hear you on the Precision Ports look. A matte finish on them would help, but for me, they still throw off the aesthetic mounted on a baffle much of the time.
    PWRRYD
  • Nicholas_23Nicholas_23
    You turn out good looking stuff , Im sure they will just fine. 
  • PWRRYDPWRRYD
    Thanks Nick (if your compliment was directed towards me).  I just finished routering the port holes for those 3" ports.... on the back side of the enclosures.  Man, even with a 90 degree bend they just barely fit.  35 liter enclosures with a 3" dia x 14" long port is tight!
  • jr@macjr@mac
    Yes, door prize at DDIY - but it was the second official (third overall) event. The first we had at the hotel in one of the audiotoriums. 

    They were from Madisound, if I recall correctly. Nice drivers. 
    I have a signature.
  • Nicholas_23Nicholas_23
    PWRRYD said:
    Thanks Nick (if your compliment was directed towards me).  I just finished routering the port holes for those 3" ports.... on the back side of the enclosures.  Man, even with a 90 degree bend they just barely fit.  35 liter enclosures with a 3" dia x 14" long port is tight!
    You will have to get some pictures posted when you have time 
  • PWRRYDPWRRYD
    Nicholas_23 said:
    PWRRYD said:
    Thanks Nick (if your compliment was directed towards me).  I just finished routering the port holes for those 3" ports.... on the back side of the enclosures.  Man, even with a 90 degree bend they just barely fit.  35 liter enclosures with a 3" dia x 14" long port is tight!
    You will have to get some pictures posted when you have time 
    Ask and you shall receive Brother!  :)


  • PWRRYDPWRRYD
    Another:


  • PWRRYDPWRRYD
    And another:


  • PWRRYDPWRRYD
    Again:


  • PWRRYDPWRRYD
    Make the bad man stop:


  • PWRRYDPWRRYD
    In the last picture it looks like the end of the port is super close to the floor of the enclosure.  It is a bit close, but the camera angle makes it look worse than it really is.  It is a 3" ID port and it is 4 inches from the end of the port to the enclosure floor.  This will tune the enclosure to 30 Hz, which might be a little too low.  I may end up shortening the port to raise the tuning a couple of Hertz, which would lop off an inch or two...
    R-CarpenterjhollanderNicholas_23S7910
  • 6thplanet6thplanet
    No internal flare?
  • PWRRYDPWRRYD
    edited June 2018
    I wanted to but it would be impossible to get the glued up port assembly in and out of the box due to the cross brace and front (non-removable) baffle.  If the baffle was removable then it would have one for sure.  I want to have the port removable so I can adjust the length if necessary and also so I can finish the box with paint or veneer.
  • Nicholas_23Nicholas_23
    How goes the battle? 
  • PWRRYDPWRRYD
    Hi Nick.  I was actually able to spend two hours today working on this project.  I finished routering the rabbits, the through holes, and the back side chamfers.  I took some pictures of the progress but I need to hit the hay right now as I am covering for a guy on vacation tomorrow and need to get up at 4 am.
  • D1PP1ND1PP1N
    Working fast! 
  • PWRRYDPWRRYD
  • PWRRYDPWRRYD

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  • Nicholas_23Nicholas_23
    The ass end of the vifa NE's are sexy ... and if thats wrong , I dont wanna be right. These are looking really nice. I'm guessing the two way with the ceramic SB mid didnt have enough low end? 
  • jr@macjr@mac
    Claus, when we gonna do something with some of those NE woofers you have hoarded?
    I have a signature.
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