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3.5mm TRS Stereo Audio Plug | Gold-Plated Copper & Carbon Fiber

3.5mm TRS Stereo Audio Plug | Gold-Plated Copper & Carbon Fiber

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Regular price $42.00 TWD
Regular price Sale price $42.00 TWD
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Short Product Description

The Premium 3.5mm TRS Stereo Audio Plug is a professional-grade replacement connector designed for audiophiles and DIY cable makers. Featuring a gold-plated pure copper core for lossless signal transfer and a durable carbon fiber shell, this 3-pole plug is perfect for repairing high-end studio headphones or building custom auxiliary cables. With a generous 6.0mm tail hole to accommodate thick braided wires, it is available in-stock at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po for instant pickup and your next audio project.

Key Features

  • Gold-Plated Copper Core: Maximizes electrical conductivity and prevents corrosion for long-lasting, pristine audio quality.
  • Carbon Fiber Shell: Offers excellent durability and electromagnetic interference (EMI) shielding while keeping the plug lightweight.
  • 3-Pole TRS Configuration: Standard Tip-Ring-Sleeve design perfectly supports Left/Right stereo audio and grounding.
  • Large 6.0mm Tail Hole: Easily accommodates thick, custom-braided audiophile cables and heavy-duty heat shrink tubing.
  • Compact Dimensions: Measuring just 4.1cm by 0.9cm, it maintains a sleek profile that fits easily into recessed headphone jacks.

Full Product Description

Audiophile-Grade Sound Transmission

This gold-plated copper plug ensures zero signal loss and maximum conductivity for high-fidelity audio repairs. Unlike cheaper nickel-plated alternatives that degrade sound quality over time, the pure copper core provides an ultra-low resistance path for your analog audio signals. The thick gold plating further prevents oxidation, guaranteeing a clean, crackle-free connection every time you plug it into your amplifier, smartphone, or digital audio player.

Durable Carbon Fiber Housing with 6.0mm Tail Hole

The lightweight carbon fiber shell provides superior electromagnetic shielding and physical durability to protect your delicate solder joints. One of the biggest challenges in DIY audio cables is fitting premium, thick braided wires into standard plugs. This connector solves that issue with a spacious 6.0mm tail hole, allowing you to seamlessly integrate heavy-duty audiophile cables without compromising the structural integrity of the plug.

Pro Tip from Our Technicians

Always pre-tin the solder tabs on the plug and your cable wires before attempting to join them together. Our Sham Shui Po DIY specialists warn that holding a hot soldering iron on the copper tabs for too long can melt the internal plastic insulation, so pre-tinning ensures a rapid, secure solder joint in under two seconds.

Technical Specifications

  • Connector Type: 3.5mm Audio Jack (Male Plug)
  • Configuration: 3-Pole / 3-Section (TRS - Tip, Ring, Sleeve)
  • Audio Channel: Stereo (Left / Right / Ground)
  • Connector Material: Pure Copper with Gold Plating
  • Shell Material: Carbon Fiber and Metal Alloy
  • Maximum Cable Diameter (Tail Hole): 6.0mm
  • Overall Dimensions: 4.1cm (Length) x 0.9cm (Diameter)
  • Application: DIY Audio Cables, Headphone Repair, AUX Cables

Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

FAQ Section

  • Does this 3-pole plug support headsets with built-in microphones?No, this 3-pole (TRS) plug only supports left and right stereo audio plus ground, so you will need a 4-pole (TRRS) plug if you want to connect a microphone.
  • Is a gold-plated copper plug actually better than a standard metal one?Yes, pure copper offers significantly better electrical conductivity for audio signals, while the gold plating prevents the copper from oxidizing and causing static noise over time.
  • What is the thickest cable I can use with this audio plug?You can use cables up to 6.0mm in overall diameter, making this plug ideal for thick, custom-braided audiophile upgrade cables.
  • Can I buy this plug today at your Hong Kong physical store?Yes, this premium carbon fiber audio plug is regularly stocked at our Sun Cheong Computer Co. Ltd. store in Sham Shui Po for immediate purchase and pickup.
  • What kind of solder should I use when assembling this audio plug?You should use a high-quality, rosin-core silver solder (typically 2% to 4% silver) to maximize the conductivity and strength of your audio connections.

Target Users / Applications

  • Audiophiles building custom, high-purity silver or copper AUX cables for car audio systems.
  • Studio technicians repairing broken connectors on high-end monitoring headphones.
  • DIY electronics hobbyists creating custom-length audio patch cables for synthesizers and mixers.
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