Pics of my new DIY speakers

Discussion in 'Archived Threads 2001-2004' started by Mike Keith, Jan 25, 2002.

  1. Mike Keith

    Mike Keith Second Unit

    Joined:
    Jan 24, 2002
    Messages:
    324
    Likes Received:
    0
    In case anyone here is interested I thought I'd post a pic of my new (SST8) final prototype speakers.
    MTM with fully adjustable mid/woofer cabinets and a telescoping tweeter for fine tuning the time alignment. the details are as follows
    Mid/woofers (2 per side) Scan-Speak 8530-K00, with 2X15 flared ports out the back. Cabinets are tiltable +/- 7 degrees with dual wall construction and a tar slurry between walls, overall thickness is min 1.75" and baffles over 2" thick total weight of each cabinet is aprox 45Lbs.
    Tweeters are the Vifa XT25 dual concentric tweeter in a PVC enclosure fitted over a sliding PVC tube filled with "Great Stuff" expanding foam, which allows up to 1.25" travel in or out.
    All drivers are at this time Actively crossed at 3.2K via Marchand XM-9-3KK 24db L-R, but I'm experimenting with a Passive L-R network for the tweeter to tame the resonate peak per the suggestion of Peter at AV Reality and am told it will make a huge difference. the final version will have solid oak stands with some bracing and the tweeter mount will be solid oak, and of corse some paint for the enclosures, Pic on link below
    http://64.33.91.28/kingdaddysst8/Web...totype_009.jpg
    More pics at my geo cities web page, but you may have trouble as it is bandwidth limited.
    http://www.geocities.com/kingdaddyke...?1011198404840
     
  2. Hank Frankenberg

    Hank Frankenberg Cinematographer

    Joined:
    Oct 13, 1998
    Messages:
    2,573
    Likes Received:
    0
    Wild! I sure like the non-box enclosure approach and the constrained layer sandwich (MDF - correct?). I've only seen one D-I-Y using ScanSpeaks - it's nice to see you're using them - did you experiment with less expensive drivers or is this your all-out effort? How did you get the radius for the tweeter tube into the cabinets - a large diameter drum sander? Those are going to have a very unique look when finished, and I would imagine they'll sound great. Very nice work [​IMG]
     
  3. PeteG

    PeteG Agent

    Joined:
    Feb 25, 2000
    Messages:
    46
    Likes Received:
    0
    Mike, They look awesome, from the pics the construction

    doesn't look like it was easy. They remind me of my

    ref Gallos.

    I been thinking of putting the Vifa XT tweeter in a

    small 2-way, how's the sound.
     
  4. Patrick Sun

    Patrick Sun Moderator
    Moderator

    Joined:
    Jun 30, 1999
    Messages:
    38,717
    Likes Received:
    463
    Hey, ILM called, they want their blaster cannon prototype back! [​IMG]
     
  5. Dustin B

    Dustin B Producer

    Joined:
    Mar 10, 2001
    Messages:
    3,126
    Likes Received:
    0
    DAMN [​IMG]
    That is some increadibly impressive work [​IMG]
     
  6. Jeffrey Noel

    Jeffrey Noel Screenwriter

    Joined:
    Sep 11, 2001
    Messages:
    1,533
    Likes Received:
    0
    Those are awesome Mike! I wish I could make things look that good! [​IMG] Hopefully they sound as impressive as they look!
     
  7. Kevin Deacon

    Kevin Deacon Second Unit

    Joined:
    Dec 18, 2001
    Messages:
    319
    Likes Received:
    0
    I can't imagine having those in my theater. My eyes would be constantly drawn to those so as to distract from the video material. These would definately scare the animals (kids included) in my home, especially when sounds came out of them[​IMG]
    Yeah, I know my tastes are conventional.
     
  8. Jon_B

    Jon_B Screenwriter

    Joined:
    Nov 27, 2000
    Messages:
    1,025
    Likes Received:
    0
    Nice job! I'm a big fan of non-traditional speakers. Great design.

    Jon
     
  9. Mike Keith

    Mike Keith Second Unit

    Joined:
    Jan 24, 2002
    Messages:
    324
    Likes Received:
    0
    Kevin, it's funny you should mention this as I had immediate reaction from my Cat and Dog. The moment the first sound came out of these, the cat just look at it funny and left the room, but the dog actually tried to attack the speaker and totally freaked out I've never seen that dog act that way.

    BTW to the other poster that enquired about the XT Tweeter sound my reply would be that I'm very pleased and the detail and subtle nature is very easy on the ears without any harshness, but I do believe that I can go lower on the XO point and with the addition of a .01 mh inductor in parallel and a series 4 Ohm resistor they should be even better, also the whole vocal region is so intelligible and clean that I feel all my 350+ hours of work is justified, now all I need is a couple of sono tube sub's to match, although I am very supprised at the amount of quality low bass that these little 5" woofers can put out.

    Thanks to every one on the compliments.
     
  10. Julian Data

    Julian Data Second Unit

    Joined:
    Oct 5, 1999
    Messages:
    408
    Likes Received:
    0
    AWESOME JOB! [​IMG][​IMG]
     
  11. Neil Joseph

    Neil Joseph Lead Actor

    Joined:
    Jan 16, 1998
    Messages:
    8,332
    Likes Received:
    1
    Real Name:
    Neil Joseph
    Very unique. How do you like the sound.
     
  12. Carl Johnson

    Carl Johnson Cinematographer

    Joined:
    May 6, 1999
    Messages:
    2,259
    Likes Received:
    25
    Real Name:
    Carl III
    Those look great. Once I get into this new house building some DIY speakers is on my rather legnthy list of things to do but those are beyond anything that ive even imagined. Looks like I need to hang with you........
     
  13. Cam S

    Cam S Screenwriter

    Joined:
    Jan 11, 2002
    Messages:
    1,524
    Likes Received:
    0
    Wow, talk about being original, VERY nice!!
     

Share This Page