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Comparable to the Team3 series. High motor force and plenty of attack. Great for SPL or high pressure applications. 2500W+. Standard 4 spider but can be made with 5 if needed for SPL specific applications. Works great in high pressure ported or 6th order applications. 12″, 15″, and 18″ sizes.


All Neo3.X:

New cooling and inductance features that are set up in stages.  The first stage is a machined aluminum pole sleeve.  This provides better heat wicking and is the first portion of inductance linearizing and reduction.  The second stage is a combination of the pole sleeve and an amluminum domed compression cap.  This increases the compression ratio for cooling as well as adds some outstroke inductance reduction.  The third stage utilizes the pole sleeve, the compression cap, and a thick aluminum finned extrustion that again lowers and linearizes inductance as well as aids in thermal dissipation.  With the third stage we have reduced inductance by almost a factor of 3 over utilizing none of the aluminum.

All leads are stitched in the same pattern and use the bolted terminal block as the original hybrid design.  But we have added push terminals that use this same setup with the ability to handle much larger wire and completely removing the multiple solder and crimp points that could introduce unwanted resistance.

All Neo3.X subs use the high Xmax dual 1 Ohm and dual 2 Ohm coils for 34mm of one way Xmax.

New option for higher grade "Black Neo" that bumps up motor force of all Neo Series.


  • Dual 1 and Dual 2 Ohm

  • Extra heavy aluminum basket

  • Wrap around gasket

  • Kraft pulp fiber reinforced cone

  • Dual layer wide foam surround

  • Standard heavy duty stitched hybrid lead or push/hybrid termination

  • 144 tinsel count leads

  • FEA optimized motor

  • 1750W on up depending on options

  • Open column motor design for increased cooling

  • 3” diameter 4 layer aluminum coil

  • Standard or heavy duty coils available

  • N52UH Neo magnets (5, 7, or 9)

  • 10″ Progressive spiders (options for 2-6 depending on series)

  • Water jet and machined in house at Fi

  • 3 stage inductance and cooling options

  • 34mm Xmax

  • 12″, 15″, and 18″

Neo 3.9

PriceFrom $759.00
Logo Decal Color
  • Thiele/Small parameters


    Coils DUAL 1 | DUAL 2
    Fs Hz 39.3 Hz | 39.5 Hz
    Re 0.9 | 1.8
    Qms 7.02 |6.83
    Qes 0.29 | 0.29
    Qts 0.28 | 0.28
    Mms 294g | 294g
    Cms N/A
    Sd 480cm^2 | 480cm^2
    Vas 17.88 l | 17.71 l
    Spl 87.6dB | 87.6dB
    Bl 21.2 N/A | 30.0 N/A
    Xmax 34mm (One Way)
    Rms 2500W


    Overall ø 12.625"
    Cutout ø 11.125"
    Mounting Depth 9.375"
    Displacment .19 cuft
    Sealed ft3 N/A
    Ported ft3 1.8-2.5 cuft
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