Feature:1. [Shell Material] RCA Plug uses black carbon fiber as the shell, which is effectively shielding external noise and restore clean current. The hot end hole adopts a hollow design, and the sound is natural.2. [Easy Installation] This premium RCA connector features a metal connector housing, ideal for professional installers or home theater enthusiasts who want to make their own high quality RCA cables.3. [Good Signal] The chrome plated plug of the RCA sound plug has better signal transmission. Excellent workmanship ensures high load capacity and the chrome plated contacts transmit signals almost losslessly.4. [High Resolution Power] RCA plug is transparent and glossy, rich in details and layering, the mid frequency is thick and full, and the low frequency has good elasticity and strength.5. [Applicable] Suitable for signal lines, sound lines, coaxial lines, etc., used in professional sound equipment, the maximum wire diameter of RCA terminal plug connectors can up to 8 mm. The connection method is welding.Specification:Item Type: RCA Sound PlugConductor Material: BrassMaximum Wire Diameter: Approx. 8mm/0.3inFinish: Chrome PlatedShell: Black Carbon FiberColor: Black Blue And Black RedQuantity: 4Impedance: Ultra Low ImpedanceConnection Method: WeldingScope of Application: Widely Used in Professional Equipment.Package List:2 x RCA Sound Head (Black and Blue)2 x RCA Sound Head (Black and Red)Note:Please allow some errors due to manual measurement.