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JBL2235H passive radiator build

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  • JBL2235H passive radiator build

    I’m breathing new live into My old JBLs. Denovo 18” Ultimax enclosures with Dayton 18” passive radiators and cutting a hole to mount My 20+yr old rebuilt JBLs. Crossing over high, 500hz ish, I’m using the PRV 5MR450 8 in open baffle on top! I still need to purchase the Minidsp HD to handle the processing, preamp, and crossover needs but have 3 Dayton APA150s one for each woofer, one the PRV’s will share. I’m hoping the amplifiers will be enough to get things moving, perhaps an upgrade in the future? First things first, I need to get it all together and working! With the help of My two Sons, it won’t take long and has been a fun build for all of Us! Sent from my iPhone using Tapatalk

  • #2
    i picket up a pare of Realistic T-110. 10 in radiators bad. I want to add 10 in woofer and 3 way crossover. What do you think. Do I need to port or not?

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    • #3
      Originally posted by Jeffry Ames View Post
      I’m breathing new live into My old JBLs. Denovo 18” Ultimax enclosures with Dayton 18” passive radiators and cutting a hole to mount My 20+yr old rebuilt JBLs. Crossing over high, 500hz ish, I’m using the PRV 5MR450 8 in open baffle on top! I still need to purchase the Minidsp HD to handle the processing, preamp, and crossover needs but have 3 Dayton APA150s one for each woofer, one the PRV’s will share. I’m hoping the amplifiers will be enough to get things moving, perhaps an upgrade in the future? First things first, I need to get it all together and working! With the help of My two Sons, it won’t take long and has been a fun build for all of Us! Sent from my iPhone using Tapatalk
      Awesome work, nice to have the help of your boys. What will the passives tune the cabinet to? I know the drivers will be efficient, but do you think the apa150s will be enough?

      steve1tanetwo, it would be best for you to start your own thread instead of hijacking someone else’s thread. In short, adding a 10”
      woofer would be a horrible idea, the 8” uses that cabinet volume. You could make a tiny cabinet for the 8” and use it as a mid, but it would probably make a poor dedicated mid. At that point you’d have the room for a sealed 10, but you’d need to isolate it from the 8


      Dan

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