Plug 4.4mm

The contact surfaces are finished with a thick layer of rhodium plating. Rhodium is chosen not for visual appeal, but for its exceptional hardness, resistance to wear, and long-term stability. Compared to softer precious metals, rhodium maintains consistent contact pressure and surface quality even after thousands of insertion cycles, ensuring stable performance over time. The plating thickness is carefully controlled to provide durability without compromising conductivity.

Each plug is manufactured with precise geometry and tight tolerances, guaranteeing accurate alignment inside the socket and a secure, wobble-free fit. This precision minimizes micro-vibrations and contact instability that can negatively affect signal integrity in high-resolution audio systems.

The internal structure is designed to support a reliable mechanical and electrical connection with the cable. Combined with Zikman’s screw-based fixing system, the plug achieves excellent contact pressure and mechanical stability. Once assembled, the connection does not loosen during regular use or portable listening, maintaining a consistent electrical path at all times.

The result is a balanced 4.4mm plug that delivers low contact resistance, high durability, and stable signal transmission — a refined component designed specifically for audiophiles who value precision, longevity, and uncompromised sound quality.