The Duelund inductors is one of the highest quality coils available. The inductors are fully vacuum impregnated.
The proprietary WPIO dielectricum is used which necessitates several days of impregnation under high pressure.
This results in incredible damping properties, which offers a very high mechanical stability.
Cheaper but of high quality is the Duelund JDM wax/paper air core coil.
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