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  1. IB - Infinite Baffle Subwoofer Build Projects
    I currently have a pair of adire audio tempest for my IB. I want to upgrade to the either the ib318 or the um18-22. I see the FI is quite popular but what about the ultimax? Pricewise I can get a pair of the ultimax for $100 less than the ib318. Any suggestions?
  2. Sealed Subwoofer Build Projects
    Hi There My Dayton um 18-22 is ordered, should be here in 2 weeks :clap: I have designed my sealed box and wanted opinions on the design. It is 22inch wide, 22 inches high and 20inch Depth. With all bracing volume and without driver volume (couldn't find it) it is 4.173 ft3 and 118.161 L...
  3. DIY Subwoofers - General Discussion
    Hi Im having issues with WinISD, It wont accept the parameters or wdr file. Could someone please calculate the volume and port size on a (Dayton um 18-22 18" Ultimax DVC) with one port at about 19hz for me please. Powered by a Dayton sa1000. Thanks
  4. Classifieds - Speakers and Subwoofers
    TREO Engineering SSI 18.22 looking for a good home! SOLD!!! This is an SSI 18.22 18inch subwoofer that is new and still in the original packaging. It is dual 2ohm VC's and has never been mounted. It has been tested to verify functionality and with a WFT3. It is a very substantial sub at 41lbs...
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