Entreq Sudoku Power Cable

The Sudoku Power Cable is Entreq's latest power cable design, built using a completely new construction method and featuring a separate EEDS drain wire. It sits within the Sudoku range — Entreq's current flagship cable series — and represents the company's most advanced thinking on how power delivery affects system performance.

A New Construction Method

Entreq have rebuilt the Sudoku Power Cable from the ground up. The construction method is entirely new relative to previous Entreq power cables, and the inclusion of a separate EEDS drain wire is central to what makes this design different. Rather than treating the drain wire as an afterthought, Entreq have isolated it as a dedicated element within the cable's architecture. In our experience, this kind of attention to how noise and interference are handled within the cable itself — rather than simply at the component level — is what separates cables that make a measurable difference from those that merely look the part.

Ground Box Compatibility

The Sudoku Power Cable is designed to work in conjunction with a separate Entreq Ground Box — this is not optional. Entreq's grounding philosophy treats the cable and the ground box as a system, and the Sudoku Power Cable is built with that pairing in mind. Compatible ground boxes from the Entreq range include the Olympus 10 T, Olympus Infinity T, Olympus TenTen, and Olympus Hero. If you are new to Entreq's approach to grounding, we would strongly recommend speaking with us before purchasing — getting the pairing right matters, and it is something we can advise on directly.

Who Is It For?

The Sudoku Power Cable is for the serious enthusiast who has already addressed the fundamentals of their system and is looking at what lies beyond. It is not an entry point into Entreq — it is a considered step for someone who understands the role that power quality and grounding play in a high-resolution system. If you are at that stage, this cable is worth a careful listen. If you are earlier in the journey, we can suggest where to start within the Entreq range.

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 Sudoku Power Cable is available to hear at our Norwich showroom, where we can demonstrate it within a complete Entreq system context.

When you get in touch, you'll be speaking with Dave, Chris and Tim — experienced specialists who can advise on this cable, the right ground box pairing, 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.