Entreq Sudoku Signal Cable

The Entreq Sudoku Signal Cable is the latest in the Sudoku range, featuring a completely new construction method with a separate EEDS drain wire. Available in RCA and XLR terminations, it is designed to work in conjunction with an Entreq Ground Box for best results.

EEDS Drain Wire

The Sudoku Signal Cable features Entreq's separate EEDS (Entreq Earth Drain System) drain wire — a key part of the construction that works alongside a Ground Box to drain noise away from the signal path. Rather than leaving interference to dissipate within the cable itself, the EEDS wire provides a dedicated path for it, keeping the signal as clean as possible.

Ground Box Compatibility

The Sudoku Signal Cable is designed to be used with an Entreq Ground Box. Entreq recommend pairing it with the Silver Minimus, Tungsten Performance, or Olympus 10 T Performance Ground Boxes for optimal results.

Technical Specifications

Connector Options RCA, XLR Length (RCA) 1100mm Length (XLR) 1100mm 

Who Is It For?

The Entreq Sudoku Signal Cable is for the serious listener who has already invested in a high-resolution analogue system and wants to address noise at its source rather than compensate for it elsewhere. It is not a cable for someone dipping a toe into the Entreq philosophy — it works best as part of a considered Entreq system, paired with the appropriate Ground Box.

Buying from Martins Hi-Fi

Martins Hi-Fi has been in Norwich since 1968. Elizabeth Gould runs the business today, and we stock only brands we have heard properly and stand behind.

The Entreq Sudoku Signal Cable can be demonstrated at our Norwich showroom, where you can hear what a properly implemented Entreq grounding system does in a real system context.

When you get in touch, you'll be speaking with Dave, Chris and Tim — experienced specialists who can advise on this cable and your whole system.

Contact us at info@martinshifi.co.uk, call 01603 627010, or WhatsApp on 07554 687137. You can read more about how we work on our Why Martins Hi-Fi page. We are at 85–91 Ber Street, Norwich, NR1 3EY.