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  1. DIY Subwoofers - General Discussion
    High excursion driver discussion- Sundwon Audio ZV4- Stereo Integrity (vaporware) - FI SP4 HT... Anyone with first hand experience with one or the other, or both? I'd like to hear all opinions on the FI sp4 vs the zv4. 18" driver 3750 Peavey watts per sub
  2. DIY Subwoofers - General Discussion
    re: FI SP4 18 winisd file Hi all, Every time I try and create a winisd file for the FI SP4 18 dual 2 ohm I get errors. Has anyone managed to successfully get this done. If so could you upload here please. regards Graham
  3. DIY Subwoofers - General Discussion
    So my RSW-15 blew up and was thing about doing home made Sub box. So this is what I have to work with 20.5" H 22" W 26" Deep. The question is would a FI SP4 15 or 18 work with this much space? So I have ruffly 6 cube whats your thoughts? Ported or sealed ep 4000?
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