{"product_id":"rca-plug-jack-set-brass-gold-plated-audio-connector-preamp-diy-home-theater","title":"RCA Plug \u0026 Jack Set – Brass Gold-Plated Audio Connectors for Preamp, DIY Projects \u0026 Home Theater Sound Systems, 4\/10\/20pcs","description":"\u003ch2\u003eRCA Plug \u0026amp; Jack Set – Brass Gold-Plated Audio Connectors for Preamp, DIY \u0026amp; Home Theater\u003c\/h2\u003e\n\n\u003cp\u003eBrass-body, gold-plated RCA (phono) connectors for line-level audio connections in home theater systems, preamplifiers, DACs, CD players, and DIY audio projects. The RCA connector (also called phono connector) is the universal standard for unbalanced line-level audio connections in consumer and semi-professional audio equipment. Gold plating on the contact surfaces provides low contact resistance and corrosion resistance — maintaining signal integrity over years of use without the oxidation that degrades tin-plated contacts.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Brass, gold-plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Material:\u003c\/strong\u003e Brass, gold-plated (center pin and outer shell)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImpedance:\u003c\/strong\u003e 75Ω (matched to standard line-level audio impedance)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e DC to 1GHz (suitable for audio and video)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsulator Material:\u003c\/strong\u003e PTFE or PE (variant dependent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Entry:\u003c\/strong\u003e Solder type (center pin + outer shell solder cups)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 4, 10, or 20 pieces (select above)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRCA Connector Wiring — Standard\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter pin:\u003c\/strong\u003e Signal (hot) — connect to the signal conductor of the cable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter shell:\u003c\/strong\u003e Ground \/ Shield — connect to the cable shield\/braid\u003c\/li\u003e\n  \u003cli\u003e\u003cem\u003eRCA is an unbalanced connection — the outer shell is both the signal return and the shield. For long cable runs (\u0026gt;5m) in electrically noisy environments, use balanced XLR connections instead.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGold-Plated vs Nickel-Plated vs Rhodium-Plated RCA\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNickel-plated:\u003c\/strong\u003e Lowest cost. Adequate for short-term use. Oxidizes over time, increasing contact resistance. Suitable for temporary connections and budget applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGold-plated (this product):\u003c\/strong\u003e Industry standard for quality audio connections. Gold does not oxidize, maintaining low contact resistance indefinitely. 24K gold plating (0.5–1.0μm) provides excellent corrosion resistance without the brittleness of thicker gold layers. The correct choice for permanent audio installations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRhodium-plated:\u003c\/strong\u003e Harder than gold, very low contact resistance, extremely corrosion-resistant. Used in high-end audiophile applications. Significantly more expensive than gold-plated. Marginal performance difference in standard audio applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Questions Does This Product Answer?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cem\u003e\"How do I solder an RCA connector?\"\u003c\/em\u003e — Strip the cable jacket 20–25mm. Separate the shield braid and twist into a strand. Strip the center conductor 5–7mm. Thread the cable through the connector body (before soldering — it cannot be added after). Solder the center conductor to the center pin solder cup. Fold the shield braid back over the connector body and solder to the outer shell solder lug. Slide the connector body forward and tighten the strain relief.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cem\u003e\"Does gold plating improve audio quality?\"\u003c\/em\u003e — Gold plating prevents oxidation that increases contact resistance over time. Higher contact resistance adds a small series resistance to the signal path, which can affect high-frequency response in high-impedance circuits. In standard line-level audio (output impedance typically 100–600Ω), the effect of contact oxidation is measurable but inaudible in most systems. Gold plating is primarily a reliability and longevity improvement, not an audible quality improvement in new connectors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cem\u003e\"Can I use RCA connectors for video signals?\"\u003c\/em\u003e — Yes. Composite video, component video (Y\/Pb\/Pr), and S\/PDIF digital audio all use RCA connectors. The 75Ω impedance of this connector matches the standard impedance for video and digital audio signals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHome theater:\u003c\/strong\u003e Connecting AV receivers, Blu-ray players, and source components\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePreamplifiers:\u003c\/strong\u003e Input and output connections on tube and solid-state preamps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDAC connections:\u003c\/strong\u003e Digital-to-analog converter output connections to amplifiers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY audio:\u003c\/strong\u003e Custom interconnect cable assembly, amplifier input\/output wiring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurntables:\u003c\/strong\u003e Phono cartridge output connections to phono preamps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cp\u003e4, 10, or 20 pieces (select above) — brass gold-plated RCA connectors (plug or jack as selected). Strain relief included.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"Black \/ 4 PCS","offer_id":47850657743093,"sku":"14:200004889#Black;200001249:202408830#4 PCS","price":24.33,"currency_code":"USD","in_stock":true},{"title":"Black \/ 10 PCS","offer_id":47850657710325,"sku":"14:200004889#Black;200001249:202408832#10 PCS","price":60.87,"currency_code":"USD","in_stock":true},{"title":"Black \/ 20 PCS","offer_id":47850657808629,"sku":"14:200004889#Black;200001249:202408829#20 PCS","price":119.0,"currency_code":"USD","in_stock":true},{"title":"Red \/ 4 PCS","offer_id":47850657775861,"sku":"14:200004890#Red;200001249:202408830#4 PCS","price":24.33,"currency_code":"USD","in_stock":true},{"title":"Red \/ 10 PCS","offer_id":47850657874165,"sku":"14:200004890#Red;200001249:202408832#10 PCS","price":60.87,"currency_code":"USD","in_stock":true},{"title":"Red \/ 20 PCS","offer_id":47850657841397,"sku":"14:200004890#Red;200001249:202408829#20 PCS","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/Scad20a396e664e748598ea249532f347c.webp?v=1773899425","url":"https:\/\/www.csldmcml.com\/products\/rca-plug-jack-set-brass-gold-plated-audio-connector-preamp-diy-home-theater","provider":"Cable Parts Online","version":"1.0","type":"link"}