Paper Cones
Due to it’s ideal combination of low weight and excellent mechanical features (stiffness, damping) paper is still a material that is highly suitable for the production of loudspeaker cones. By means of special processes and materials DKM offers an appropriate solution for each of your applications.
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1. Production of paper cones
- sieve inside or sieve outside
- pressed for improvement of fidelity
- air dryed to increase internal damping
- sizes up to 10 inches are produced in Germany, sizes larger than 10 inches are produced in UK
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2. Materials of paper cones
- production in UK: hardest Blue Sig, standard material and soft material Mu and K2 or very hard special material SigX
- production in Germany: hard, black ST material, standard material and soft, damping materials V, DU, DS and special materials MA (Micra), NU
- for increase of strength spacing material is used (aramid fibre, carbon fibre, glass fibre, ...)
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3. After treatment of paper cones
- hardening of cone neck or whole cone by painting
- water-repellent, bactericidal or fungicidal design
- complete immersion to raise internal damping
- coating to improve appearance and acoustics
- laminating with high-tech fabrics