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  1. Is this a realistic expectation for 2 Dayton um18s

    DIY Subwoofers - General Discussion
    Hello this is my first actual post to this forum so my apologies if any errors are made. I've been designing my first diy sub enclosure for 2 Dayton ultimax 18s and just want some feedback from anyone with experience. The main use of the subs will be for music, but the music I listen to has a...
  2. broken SPL meter or unrealistic expectation? max spl of 90-95ish

    Home Audio Subwoofers
    Finally looked at my SPL meter with the sub playing some sine waves from 16hz to around 100 or so. there was one tone that did have a boost up to around 95 but for the most part the max I saw was around 90 and that was with the volume cranked to +8. My HSU sub was set to maximum headroom 1...