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Overview

Tributaries Series 8A MKII Mono RCA Audio Interconnect Cable

Reference-grade mono RCA interconnect featuring 20AWG Linear Crystal Oxygen-Free Copper conductors, precision-twisted Twin-Axial geometry, dual shielding, and gold-plated Tellurium copper connectors.

The Tributaries Series 8A MKII Mono RCA Audio Cable is engineered for high-performance analog signal transmission between premium audio components. Designed for unbalanced RCA connections, this reference-grade interconnect combines multi-gauge LC-OFC copper conductors, independently insulated signal paths, and directional shielding to preserve signal integrity and minimize electrical interference.

Hand-assembled in Orlando, Florida, the 8A MKII delivers the construction quality and noise-control technologies of Tributaries' flagship Series 8 analog interconnects in a single-channel RCA-to-RCA configuration.

20AWG Linear Crystal Oxygen-Free Copper

The 8A MKII uses high-purity Linear Crystal Oxygen-Free Copper (LC-OFC) conductors specifically developed for audio applications.

Its multi-gauge solid-core construction combines different conductor diameters to support consistent signal transmission across the audio frequency spectrum.

Each conductor is individually insulated to eliminate direct strand interaction and maintain stable electrical characteristics.

Precision-Twisted Twin-Axial Design

Tributaries employs a Twin-Axial conductor geometry with dedicated paths for the positive audio signal and negative return.

Unlike conventional coaxial RCA cables that use the outer shield as the signal return, the 8A MKII separates the return conductor from the shielding system.

This configuration helps reduce interference entering the signal path while maintaining compatibility with standard unbalanced RCA connections.

Dual Shielding with Directional Grounding

The Series 8A MKII incorporates two layers of shielding to protect low-level analog audio signals from electromagnetic and radio-frequency interference.

The shielding system is connected at the source end only, directing captured interference away from the receiving component's input circuitry.

This directional construction is particularly useful in complex audio systems with multiple power supplies, digital components, and closely spaced interconnects.

Gold-Plated Tellurium Copper RCA Connectors

The 8A MKII features proprietary RCA connectors manufactured with Tellurium copper contacts, selected for their conductivity and mechanical strength.

Gold plating provides corrosion resistance and maintains reliable electrical contact over time.

The connectors are hand-terminated using silver solder to create a secure connection between the cable conductors and RCA contacts.

Premium Jacket and Hand Assembly

Each Series 8A MKII cable is assembled by hand in Orlando, Florida, using domestic and imported components.

A decorative woven outer sleeve protects the cable, while the underlying UL CL2-rated PVC jacket provides additional durability.

The result is a premium analog interconnect suitable for reference audio systems and custom installations.

Single-Channel RCA Applications

The mono version is supplied as one RCA-to-RCA cable rather than a stereo pair.

Typical applications include:

  • Mono preamplifier-to-power-amplifier connections

  • Individual left or right analog signal channels

  • Compatible RCA line-level connections

  • Custom systems requiring a single high-quality analog interconnect

For stereo connections, two mono cables are required.

Technical Specifications

Specification Details
Brand Tributaries
Model 8A MKII Mono
Series Series 8
Product Type Reference-grade analog audio interconnect
Configuration Single-channel / Mono
Connection Type RCA male to RCA male
Signal Format Unbalanced analog audio
Conductor Material Linear Crystal Oxygen-Free Copper (LC-OFC)
Conductor Gauge 20AWG
Conductor Construction Multi-gauge, individually insulated
Conductor Geometry Precision-twisted Twin-Axial
Signal Paths Dedicated positive and negative return conductors
Shielding Dual shielded
Shield Grounding Source-end termination
Connector Contacts Tellurium copper
Connector Plating Gold
Connector Termination Silver solder
Outer Jacket Decorative woven sleeve
Inner Jacket UL CL2-rated PVC
Assembly Hand-assembled in Orlando, Florida
Standard Lengths 0.5m, 1m, 1.5m, 2m, 3m, 4m
Custom Lengths Available upon request
Quantity One RCA-to-RCA mono cable

Tributaries Series 8A MKII Mono at The Grid HiFi

The Tributaries Series 8A MKII Mono RCA Interconnect combines precision copper conductors, Twin-Axial signal geometry, dual shielding, and premium Tellurium copper terminations for demanding high-end audio systems.

The Grid HiFi specializes in reference audio components, premium amplification, and carefully selected system connectivity.

Complete your system with reference-grade analog interconnects. Contact The Grid HiFi at (713) 218-8120 for available lengths and system recommendations.

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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.