Reference Line – Copper Interconnect (RCA Pair)

Prosper Cables – Reference Line – Copper Interconnect (RCA Pair)

Refined Signal Geometry

The Reference Line Copper Interconnect is designed for stable signal transfer in short-to-moderate run applications including preamp connections, DAC outputs, subwoofer routing, and phono stage integration.

Positioned within the Prosper Cables Reference Line, this configuration is intended for customers who prefer a copper conductor platform while still seeking the benefits of a highly refined hand-built signal cable.

Reference Copper sits alongside Reference Silver as a parallel conductor option. One is not intended to replace the other. Some systems and listeners simply favor the character and material approach of copper, while others prefer silver. This cable is built for customers who want a copper-based Reference Line cable without giving up the careful geometry, shielding, and hand-built construction that define the series.

Each cable begins with cotton-insulated copper conductors and is assembled with controlled spacing, silver-plated copper shielding, and careful mechanical preparation throughout the build process. The result is a signal platform focused on low-capacitance behavior, stable shielding performance, and long-term mechanical reliability.

This configuration is optimized for installations where clean signal transfer, controlled geometry, and connector compatibility are priorities.

Each pair is hand-built in Prosper, Texas. Conductors are individually prepared, sleeved, soldered, strain-managed, and fully inspected prior to shipment.

Reference Line emphasizes:

• Refined signal geometry
• Stable shielding and noise management
• Low-capacitance design principles
• Cotton-insulated copper conductor architecture
• Silver-plated copper shielding
• Expanded termination options
• Precision termination integrity
• Durable long-term construction

RCA Connector Options

Switchcraft 3502AAU RCA

The default connector option for the Reference Copper RCA.

These connectors provide a compact, durable, professional-grade RCA termination with a dependable mechanical feel and long track record in audio applications.

KLE Copper Harmony RCA

Available as an upgraded connector option.

Designed in Australia, KLE Copper Harmony connectors use a lightweight, low-mass approach with a copper-contact platform. Their construction makes them a strong option for customers seeking a more minimal, signal-focused RCA connector while staying with a copper-based contact design.

Connector selection affects final pricing and will be reflected in the selectable options above.

Ground wire options are available for customers using these cables with phono stages or other components that require a separate ground connection.

Available in standard lengths with custom configurations upon request.

All cables are built to order.

Prosper Cables Line Structure:

• Classic Line – Timeless Signal Architecture
• Core Line - Refined Signal Geometry
• Reference Line – Handmade with the finest materials
• Statement Line – Specialty Architecture

All cables are hand-built in Prosper, Texas.