Finished Fusion 8 Alchemy with pics

Discussion in 'DIY Speakers and Subwoofers' started by transconductance, Dec 2, 2013.

  1. transconductance

    transconductance Just joined the party

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    Hey all,
    I am new to the DIY community, and recently finished my first build. This speaker sounds fantastic! I will be building a pair of Hit makers after final exams are over.

    Notes:

    -Back side of speaker cabinet fastened to sides by 9 screws for easier disassembly if necessary
    -Glue was only used to hold the front baffle, bracing, and sides in place. Did this make a significant difference? probably not.
    -Corner pieces were cut for the inside and mounted with screws to help secure the back panel to the back four corners of the speaker cabinet.
    -A small amount of mattress foam was placed on the sides, back and top on the inside of the cabinet. I could have over done it here.

    -This speaker sounds excellent for the 80Hz-17kHz range. ( I doubt the 17-20 kHz range actually makes a significant difference unless you are a dog or a baby).

    -This speaker would probably sound amazing with a decent subwoofer to fill in that low range.

    Vocals, guitars, and other mid to high frequency stuff sounds absolutely amazing.


    Thanks Erich!
     

    Attached Files:

  2. Ronk

    Ronk Just joined the party

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    I received the Fusion 8 Alchemy yesterday. I was going to order the Fusion 6 or Volt 6, but after discussing with Erich, I went with the Fusion 8. My build is almost done as I am clamping the baffle of one speaker right now. I will glue and clamp the other baffle in two hours time (giving time for the tite bond to set). I will then give the baffle one more coat of paint and will connect the drivers when everything has dried. I tested the crossovers and they work before final assembly. Hopefull, I will not have to remove crossover, but I hot glued it so removing crossover should be easy. One thing is I have not done is finish the back and sides. I am thinking of some wood varnish or clear poly coat so the birch comes through. It is now bare plywood. Update and photos once I finish the build.
     
  3. Ronk

    Ronk Just joined the party

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    I finished the build of Fusion 8. Back, sides, top and bottom are not finished yet. I will probably cover with a poly coat in summer when I can put them out to dry.


    The sound was initially very bright, but with some break in, the speakers got a bit less bright. I still have no real handle on the sound. The bass is a bit lacking, but that could be due to not fully broken in and living room opening to kitchen and dining room. I may have put stuffing too close to the ports. I may have to remove woofers and readjust the stuffing once the speakers have been broken in. I used cheap foam mattress liner as suggested. I was going to add the poly fill from a cheap pillow, but have not cut open the pillow (cheaper than buying raw poly fill). I stuck some speaker cabinet liner that I had laying around on the horn to dampen any ring
    .


    Overall, it seems detailed, loud, efficient, and dynamic, with decent sound stage. It does not seem as detailed as the Norh Mini 9 with 5.5 inch Scanspeak revelator and 9700 tweeter (Dennis Murphy crossover), Acoustat Spectra 11, or Martin Logan stats.


    I tried to attach a pic, but after compressing, it was still too large. Oh well.
     
  4. Ronk

    Ronk Just joined the party

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    If, see if this pic will work. The speakers in the background are the Acoustat Spectra 11 and the Norh Mini 9.
     

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