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Headphone Driver Materials

  1. Gilly87
    I've always wondered about driver materials for certain headphones.

    Right now I'm especially curious about the Porta Pro, HD650, and HD25-i-II 70 ohm version.

    Anyone? Bueller?
  2. mochill
    I think they are PET
    Gilly87 likes this.
  3. Gilly87
    Hmm, interesting...which one? Or all 3?
  4. mochill
    All three

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