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  1. DIY Subwoofers - General Discussion
    I have the Dayton UM18 in my DIY build and while it sounds pretty good, I want a little more ooomph along with great SQ. I have 2 other great subs in the front and this is my tactile speaker in the rear. I do not have enough room to add another, so I want one sub that is clean and has good SPL...
  2. DIY Subwoofers - General Discussion
    Tend to prefer EXTREMELY "tight" sounding bass and have found over the years that a lot of ported subs sound "boomy" and run out of steam too easily. That may be attributed to me not having them dialed in correctly but setting that aside... I'd like to build a pair of subs using the Ultimax 18...
  3. DIY Subwoofers - General Discussion
    Hi guys I'm building a ported um 18 22 tuned to about 16hz in a 12cubic feet box. It seems to be less output than a pb13 ultra at 2metres from 20hz and up? Is this to be expected? Have I done something wrong?
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