Feature:1. Shielded: RCA plugs adopts a black carbon fiber shell, which effectively shield external noise and restores clean current. The hot end hole adopts the middle hole design, and the sound is natural and loose.2. DIY Accessories: Premium RCA connectors feature metal connector housings, ideal for professional installers or home theater enthusiasts who want to make their own high quality RCA cables.3. Gold Plated: Gold plated RCA plugs for better signal transmission. Excellent workmanship ensures high load capacity, and the gold plated contacts transmit signals almost losslessly.4. Good Sound Quality: Replacement RCA sound connector has high resolution, transparency and smoothness, rich detail expression and layering, mid frequency thick and full, and low frequency elasticity and strength.5. Application: RCA plugs are suitable for signal lines, speaker lines, coaxial lines, etc, and are used in professional speaker equipment. The maximum wire diameter can up to 8 mm. The connection method is welding.Specification:Item Type: RCA PlugsConductor Material: BrassSurface Treatment: Gold PlatedShell: Black Carbon FiberColor: Black Blue and Black RedQuantity: 4pcsImpedance: Ultra Low ImpedanceConnection Method: WeldingMaximum Wire Diameter: No More Than 8mm/0.3inScope of Application: Widely Used in Professional Speaker Equipment.Package List:2 x RCA Plug (Black Blue)2 x RCA Plug (Black Red)