Core Line – High-Level Sub Interface cable (Speakon) for REL

Core Line – High-Level Sub Interface (Speakon)

The Core Line High-Level Sub Interface is designed for systems utilizing high-level subwoofer inputs via locking connector architecture.

This cable is part of the Prosper Cables Core Line — our refined tier focused on measured signal geometry, stable shielding, and dependable long-term execution. It is engineered specifically for high-level integration between amplifier outputs and subwoofer inputs where secure mechanical connection and consistent signal transfer are critical.

Each cable is built by hand in Prosper, Texas, with attention to conductor preparation, solder integrity, strain management, and final inspection prior to shipment.

Core Line emphasizes:
• Stable high-level signal transfer
• Controlled geometry and noise management
• Secure locking interface connection
• Clean, durable presentation

Lengths are available in standard configurations, with custom lengths available upon request.

If you require alternate termination styles or have a unique installation requirement, feel free to reach out before ordering. 

Custom builds are always welcome.

All cables are built to order.

Prosper Cables Line Structure:
Classic Line – Timeless Signal Architecture
Core Line – Refined Signal Geometry
Reference Line – Advanced Conductor Systems
Statement Line – Specialty Architecture

All cables are hand-built in Prosper, Texas.