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Found 3 results

  1. FI sp4 18 box help

    I got a fi sp4 18 and i was hoping for some box design help, The space i have to work with is 20(w)x31(h)x60(l). I would like to do a 6th order because i would like to get the most out of the sp4.
  2. Spl 18 sub

    I have a friend looking to buy one 18" woofer for daily driven spl. I suggested him 1 Fi Sp4. He doesnt want to spend over 600 on a sub, so what are some suggestions on some for that price range?
  3. WANTED: matching pair of 18" Fi Q

    Product I'm looking for: 2x MATCHING 18" Fi Q. Upgraded cooling is a plus, but I will be happy as long as they do NOT have the high Q option. (If you are unsure which options your subs have, please peek through the cooling holes on the motor and read what is written on the coil inside.) Budget: $300-$400 for the pair depending on condition and options? (I always have tons of extra audio equipment so please ask and I will gladly send you a current list of what I have for trade. I will be more generous with trades than paying cash.) Condition: Used, 10/10 mechanical. Time Frame (if applicable): Up to you. I will wait. Of all the 18" subs I have had, I cannot forget my love for the Q. I know in my heart that I will be unsatisfied if I do not use them. Please do help me find a matching pair so my build can be complete! Willing to drive to meet anywhere within a few hours of Tampa FL, or pay for shipping to 33558. Please do not be shy, let me know your price. In all sincerity, Evan 813-480-1321