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  1. Want to build a FTW-21 but need help with design

    Sealed Subwoofer Build Projects
    I live and breathe construction and also love trim/cabinet building and very much so in the distant future want to build a sealed enclosure to house the FTW-21 subwoofer. I'd be using an external amp for this as well. However what I lack is general knowledge on the bracing designs/cutouts...
  2. Mach 5 FTW-21 build

    Sealed Subwoofer Build Projects
    It's taken maybe 6 months to make a final decision but a few weeks ago I pulled the trigger on 2 FTW-21's and an iNuke NU6000DSP. I received the first FTW-21 yesterday and WOW!! I knew it would be big and I know how to read 21" on a tape measure but I don't think I had any idea how massive a 21"...
  3. FTW-21 subwoofers in ~6 cu ft cabinets?

    DIY Subwoofers - General Discussion
    I have the chance to pick on of these for 800. Are they good for music?
  4. Mach 5 FTW-21 Sealed Build - Loving It

    Sealed Subwoofer Build Projects
    Well I am very late in posting my progress on my build. After thinking about what I was really after with this build, I decided I was after trying to get as much low end extension as I could get and fit into my home theater room. I have a L shaped room that is about 2100 sq. ft. My main...
  5. Mach 5 - FTW21 Build

    Ported Subwoofer Build Projects
    Hi guys, I have just ordered a new FTW 21 and now am in need of some design help for a suitable box. I am going for a large ported enclosure of around (but not limited to) 20cuft tuned to around 15hz, I want this thing to shake the house! Mainly it will be used for HT but occasional music, my...
  6. Mach 5 - FTW-21

    Sealed Subwoofer Build Projects
    So who is going to venture out and build a sealed 21" beast?!??! Wondering what the price is on this one. Any rumors? Wonder how big the box how to be for a 21" sealed configuration.