Tributaries 8AD MKII Digital Coaxial RCA Cable | The Grid HiFi
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Tributaries 8AD MKII Digital Coaxial RCA Cable | The Grid HiFi
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Overview
Tributaries Series 8AD MKII Digital Coaxial RCA Cable
75-Ohm S/PDIF Digital Audio Interconnect • 18AWG Silver-Plated LC-OFC Copper • Triple Shielding • Nitrogen-Injected Foam Polyethylene Dielectric • Gold-Plated Tellurium Copper RCA Connectors • Made in USA
The Tributaries Series 8AD MKII is a high-performance 75-ohm digital coaxial RCA cable engineered for accurate S/PDIF signal transmission between premium digital audio components. Featuring an 18AWG Linear Crystal Oxygen-Free Copper (LC-OFC) conductor with 2.5% silver plating, precision-controlled coaxial geometry and heavy triple shielding, the 8AD MKII maintains signal integrity in demanding high-resolution audio systems.
Hand-assembled in Orlando, Florida, the Series 8AD MKII combines advanced conductor metallurgy, a three-layer dielectric structure and proprietary Tellurium copper RCA connectors to support stable digital transmission between CD transports, network streamers, DACs and compatible digital processors.
75-Ohm Precision Coaxial Construction
The 8AD MKII maintains a consistent 75-ohm characteristic impedance, essential for minimizing signal reflections and impedance discontinuities in S/PDIF digital audio connections.
Its precision coaxial architecture uses a centrally positioned 18AWG conductor surrounded by three concentric dielectric layers. This construction supports accurate signal transmission across the wide bandwidth required for digital audio applications.
Silver-Plated LC-OFC Copper Conductor
The 8AD MKII features high-purity Linear Crystal Oxygen-Free Copper with 2.5% silver plating.
The silver-plated conductor is engineered for high-frequency signal transmission, while the LC-OFC copper core provides excellent electrical conductivity. Its 18AWG construction forms the foundation of the cable's controlled-impedance design.
Triple-Layer Dielectric and Shielding
Tributaries surrounds the center conductor with a precision dielectric consisting of:
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Inner dielectric skin
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Nitrogen-injected foamed polyethylene
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Outer dielectric skin
The concentric structure maintains consistent spacing between the center conductor and shielding, supporting stable 75-ohm impedance throughout the cable.
Triple shielding provides additional protection against electromagnetic and radio-frequency interference, reducing the risk of external noise affecting digital signal transmission.
Gold-Plated Tellurium Copper RCA Connectors
The Series 8AD MKII uses proprietary gold-plated Tellurium copper RCA connectors selected for electrical conductivity, mechanical strength and reliable contact.
Silver-soldered terminations provide secure conductor-to-connector connections. A decorative woven exterior covers a UL CL2-rated PVC jacket for durability and installation flexibility.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Tributaries |
| Model | Series 8AD MKII |
| Product Type | Digital Coaxial RCA Cable |
| Digital Interface | S/PDIF |
| Connector Configuration | RCA Male to RCA Male |
| Characteristic Impedance | 75Ω |
| Center Conductor | 18AWG |
| Conductor Material | Linear Crystal Oxygen-Free Copper (LC-OFC) |
| Conductor Plating | 2.5% Silver |
| Cable Geometry | Precision Coaxial |
| Dielectric Construction | Three Concentric Layers |
| Dielectric Materials | Skin / Nitrogen-Injected Foamed PE / Skin |
| Shielding | Heavy Triple Shielding |
| Connector Contacts | Gold-Plated Tellurium Copper |
| Connector Termination | Silver Solder |
| Inner Jacket | UL CL2-Rated PVC |
| Outer Jacket | Decorative Woven Jacket |
| Standard Length Range | 0.5m to 4m |
| Custom Lengths | Available |
| Assembly | Hand-Assembled in Orlando, Florida, USA |
| Recommended Applications | CD Transports, DACs, Network Streamers, Digital Audio Processors |
Tributaries Series 8AD MKII at The Grid HiFi
The Grid HiFi specializes in reference digital audio systems, high-end DACs, music servers, CD transports and premium audio connectivity.
The Tributaries 8AD MKII is designed for systems requiring a dedicated 75-ohm S/PDIF coaxial connection. Our team can help select the appropriate digital cable length and interface for components from Aurender, dCS, Esoteric, Berkeley Audio Design, McIntosh and other reference audio manufacturers.
Building a high-performance digital audio system? Call The Grid HiFi at (713) 218-8120 for expert component matching and cable selection.
FAQs
Please read our FAQs page to find out more.
Do you price match?
Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.
Do you offer free shipping?
Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.
Where is your showroom?
We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.
Can I buy online without visiting the showroom?
Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.
Do you offer financing?
Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.
Do you install systems as well as sell equipment?
Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.
Do you provide support after installation?
Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.