Entreq Sudoku Digital Signal Cable

The Sudoku Digital Signal Cable is Entreq's latest design in the Sudoku range, featuring a completely new construction method and a separate EEDS drain wire.

Available in five connector options — BNC, RCA, RJ45, USB, and XLR — to suit a wide range of digital source components and transports.

EEDS Construction

The Sudoku Digital Signal Cable uses a separate EEDS (Entreq Energy Drain System) drain wire. This is central to how Entreq approach signal cable design — the EEDS wire works in conjunction with an Entreq Ground Box to channel unwanted energy away from the signal path. The Sudoku Digital Signal Cable requires an accompanying Ground Box to function as Entreq intend.

Recommended Ground Boxes

Entreq recommend the following Ground Boxes for use with the Sudoku Digital Signal Cable: the Silver Minimus, Tungsten Performance, and Olympus 10 T Performance. If you are new to Entreq grounding, our team can advise on which Ground Box suits your system and budget.

Connector Options

The Sudoku Digital Signal Cable is available in the following terminations:

• BNC
• RCA
• RJ45
• USB
• XLR

Who Is It For?

The Sudoku Digital Signal Cable is for those already committed to — or seriously considering — the Entreq grounding philosophy. It is not a standalone upgrade in the conventional sense; it works as part of an Entreq system, and its full benefit is realised when paired with an appropriate Ground Box. If you are building or extending an Entreq system, the Sudoku represents the current pinnacle of their digital cable thinking.

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.

You are welcome to hear the Entreq Sudoku Digital Signal Cable in our Norwich showroom, where we can demonstrate it as part of a full Entreq system.

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